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Human Development Essay: Topics, Examples, & How-to Guide

A human development essay is a piece of writing that explores how a person or group of people can grow and thrive. Several disciplines study these processes and might require you to get ready with this kind of assignment:

• Biology analyzes human body development issues throughout our lifespan;
• Psychology views human development as gaining or abandoning certain behavioral trends;
• Sociology explains the cause-and-effect relationships between an individual and a group;
• Economics studies the growth of human freedoms through the improvement of their well-being.

This article systematizes the available bulk of knowledge on the importance of human development. We have collected the essential concepts and approaches you can explore through our human development essay topics and samples.

💵 Human Development in Economics

🤯 human development in psychology.

• 🧒 Human Growth Essay Topics
• 📑 Outlining Your Essay
• 1️⃣ HD Theories: Essay Example
• 2️⃣ HD & Economic Growth: Essay Example

The first Human Development Report introduced this notion back in 1990 . But the discussion of the relationship between economic growth and human development started in the middle of the 20 th century.

Now we believe that GDP is not the only indicator of our well-being . Human life is more than just selling, buying, and consuming.

Human development in economics focuses on the creation of equal rights and opportunities for everyone . This approach states that the entire society would prosper from the happiness of each of its members.

In these terms, human development has two dimensions:

• enhancement of human abilities;
• provision of prerequisites for our growth.

The former explores how we could ensure that everyone has access to education , healthcare, and decent living conditions. The latter involves achieving environmental sustainability and equality of rights and opportunities for people of all genders, ages, and ethnic backgrounds.

Human Development Index

The Human Development Index (HDI) emphasizes that people and their well-being are the criteria for a country’s prosperity, not only its economic growth.

Today, we use HDI to question the efficiency of national policy. It also allows us to compare different countries with the same GDP but different human development levels. Analyzing this data, governments can refocus their priorities and correct past mistakes.

HDI is calculated as the geometric mean of the following normalized indices:

• Life expectancy at birth is used to calculate the life expectancy index, where 85 years is the maximum.
• The education index is the sum of the expected and mean years of schooling divided by 2.
• This index is determined as GNI per capita.

Meanwhile, HDI is not as comprehensive as one might expect. HDRO (the Human Development Report Office) claims that it does not consider human inequalities, the empowerment of minorities, poverty levels, and gender disparity .

Psychology views human development from an individual’s perspective. This discipline distinguishes between three directions of human development.

• Physical changes occur in our bodies. How do we grow from a baby into an adult and from an adult into an older person? How do we acquire new motor skills, and what is the biology of our senses? What do our brains consist of , and how do they change with age? Correct answers to these questions help us explain the next direction.
• Cognitive changes cause the development of human behavior. What goes on in our brain that defines what kind of people we are? This domain focuses on logical thinking, learning, understanding, moral reasoning , and practical intelligence. It searches for the ways we could learn faster and become better versions of ourselves.
• Psychosocial changes track the growth of our social skills and preferences. It all starts with the principal caregiver. Gradually, we begin to interact with more people, such as friends, distant relatives, educators, and colleagues. It is all about our self-image, self-esteem , emotions, and relationships. The psychosocial domain also studies our ways to cope with losses or death.

Human Development Theories

The history of psychology knows many human development theories, many of which are still trusted. We will focus on the two fundamental approaches. They divide childhood into several critical stages that define our character, habits, likes, relationships, and even success in life.

Piaget’s 4 Stages of Cognitive Development

Piaget’s theory is the most widely accepted approach to child development. He believed that children construct knowledge while they manipulate and explore the objects around them. Jean Piaget marked four stages of cognitive development .

• Sensorimotor stage (0-2 years). A child learns that objects do not disappear. Their activity is all about experimenting with things to see what happens. This stage should culminate with developing the deferred imitation skill. It involves the ability to reproduce an action or sound made by another person later.
• Preoperational stage (2-6 years). Children use symbols to represent words and ideas. They develop the language and make-believe play but still lack logical reasoning . They are egocentric and cannot imagine that other people may feel or think differently.
• Concrete operational stage (6-12 years). Thinking becomes logical and focused. Children develop inductive reasoning: they observe to make generalizations about the world around them. But they still struggle with deductive thinking.
• Formal operational stage (12 years – adulthood). Abstract thinking emerges. They learn to develop theoretical ideas to explain the world.

Freud’s 5 Stages of Psychosexual Development

The Father of Psychoanalysis believed that human personality consisted of ego, superego, and id. They become unified and inseparable once the child passes the five stages of psychosexual development.

• Oral stage (0-1 year). The mouth is the pleasure center for the infant. That is why everyone is born with a sucking reflex. If the oral needs are not met during the first year of life, the child can start biting their nails or suck a thumb.
• Anal stage (1-3 years). Children gain control over their bodily functions. They experiment with feces. But early toilet training can make a child too obsessed with order.
• Phallic stage (3-6 years). Children find out the pleasure they can get from their genitals. According to Freud, this is when the sexual desire to the parent of the opposite sex emerges. Boys go through the Oedipus complex. They want to replace their father and see him as a rival in the mother’s love. Later, Carl Jung spoke of the Electra Complex, a similar mechanism in girls.
• Latency stage (6-12 years). Sexual instincts give way to the superego. During this period, children adopt the moral principles and values of their parents.
• Genital stage (12+ years). Sexual instincts reemerge. If all the above steps passed successfully, adolescents would show appropriate sexual behavior.

But this theory is too controversial to be taken for granted. Do parents define their child’s sexual and aggressive drives? Nobody knows for sure.

💡 232 Human Development Essay Topics

Since human development is a debatable and scarcely studied area of knowledge, it offers a whole lot of topics to discuss. For your convenience, we have divided them into two categories:

• The first can be used for essays on human development psychology.
• The second includes human growth and development essay topics in economics and sociology.

155 Human Development Topics (Psychology)

Psychology focuses on the emotional, intellectual, and social development of an individual. Scientists traditionally divide this growth into stages, according to the respective age. That is why the topics here can be about early childhood, parent-child relationships, school years, adolescence, marriage, and divorce .

• Child psychology: Theories of development by J. Piaget .
• How can parents facilitate their child’s relationships with peers?
• Divorce: Psychological effects on children .
• Which purposes does attachment play in infants?
• Bronfenbrenner’s ecological theory of development.
• Which ideas of Freud’s psychosexual development theory do you think are valid?
• Find the common features between Freud’s psychosexual theory and Erikson’s psychosocial theory.
• Child development and education.
• Explore the causes of inferiority complex in adolescents.
• Children’s play: An ingredient needed in children’s learning .
• How does one’s sense of self influence their future relationships?
• Corporal punishment and its effects on children.
• Why do we need to reward the feeling of gratitude in adolescents?
• What is the role of the family in shaping our social well-being?
• Developmental psychology in adolescence.
• Describe the principles of caregiving you consider as healthy and beneficial.
• Personal development plan .
• What is social knowledge, and where do we gain it?
• Write a human development theories essay.
• Emotional development in children and adults.
• What do the preferred leisure activities of adolescents tell us about their development?
• Early childhood classroom environment plan .
• Does the gender of the main caregiver matter?
• Study the effect of orphanage education on a child’s psychology.
• The introduction to early childhood education.
• Is a child’s family or school more defining for their development?
• Second life : Professional development and communication .
• How does patriarchal prejudice undermine the intellectual growth in girls?
• Does the lack of college-level education make a person less smart?
• Sigmund Freud’s personality and psychoanalysis.
• How did dr. Maria Montessori use human tendencies for child development?
• Adult learning theories .
• How does a father’s toxic masculinity impact a boy’s emotional well-being?
• Early childhood cognitive-based philosophy .
• Make a research summary of the role of IQ in human development.
• Explore the causes of the “terrible threes.”
• Lifespan human development: perspective and theories.
• Write a reflection about risk-taking behaviors in teenagers.
• Linking human development to the human condition .
• Is poverty the worst factor for a child’s development?
• Early childhood education activities and trends .
• Analyze the consequences of substance abuse in adolescence.
• Cognitive behavioural therapy for depression in adults .
• Do children adopt their same-sex parent’s gender roles in adulthood?
• Child abuse and neglect effects on adult survivors .
• What is the role of creativity in a preschooler’s development?
• Tools of the mind in the early childhood development.
• Do you agree that all psychological disorders of children under 12 are caused by an unhealthy family atmosphere?
• The theories of child development .
• How do we learn to control our emotions?
• How autistic children develop and learn?
• Analyze the major results of gender-neutral education.
• Early childhood education and skills development .
• When is the due time to start sex education of children and why?
• Erik Erikson’s theory of development .
• What is the tole of symbolic function and make-believe play in a child’s development?
• Family structure and its effects on children .
• Why is egocentrism in children normal?
• Infant development.
• Establish the relationship between language development and intellectual growth.
• Biological, cognitive, and socioemotional development .
• Sexism in human development theories.
• How an operant conditioning influences child development .
• Awareness of age-related change helps to live a healthy life.
• Middle childhood and adolescence development.
• The adverse effect of malnutrition in a child’s development.
• Assessment in early childhood: Special education .
• When is stress positive and negative for the psychological development of an individual?
• How video games affect children .
• Analyze human development in multigenerational families.
• Erickson’s psychosocial development and its stages.
• Compare and contrast the American and Japanese approaches to education and their results.
• Theoretical perspectives on human development: Freud, Piaget, and Skinner .
• The role of controlled independence in childhood.
• Technology impacts on the new generation of children .
• Why is periodical boredom necessary for a child to develop?
• Learning and student development theories and factors .
• Why is human development the basic need of any society?
• The development of secure and insecure attachments in children .
• Why is intellectual growth so pleasurable for us?
• Moral and personality development.
• If the human development mechanism is equal for all, why are we so different?
• 21 st century skills development .
• Why do modern sociologists think we should work less?
• Peer pressure on children in high school .
• What could we learn from the indigenous African tribes in terms of the psychological development of children?
• Interaction for child’s development and learning.
• Schools: an unknown war where we miss our childhood?
• Effects of media on children .
• To which degree do genes determine our development?
• Jean Piaget – cognitive theorist.
• Why are foster children less prepared for adult life than their adopted peers?
• When should children start school ?
• When do children stop learning through play?
• Managing stress better: Personal development .
• Which socio-emotional factors make aging less depressing?
• Preschool play role in the cognitive development.
• The benefits and drawbacks of grandparents’ raising children.
• Autism as the most prevalent developmental mental disorder .
• How does lifelong learning benefit human brain?
• Teaching and supporting adult learners .
• How does lifestyle influence our cognition?
• Parent-child relationships and parental authority .
• Should adults develop an awareness of their aging?
• Early intervention for young children with autism.
• Why do scientists no longer view aging as a negative process?
• Development and improvement of communication skills .
• Which factors define our ability for emotional regulation?
• Child’s play observation and parent interview .
• Compare the Christian and Muslim cultural differences in human development.
• The early abuse’ impacts on teenagers emotional development .
• Are private nurseries and schools better for children’s development?
• Behavior change in learning processes.
• Why is generation alpha more emotionally intelligent than any earlier-born children?
• Videogame addiction and its impact on children .
• Shout less and explain more: the effect of the modern approach to caregiving.
• Adult education, its objectives and approaches .
• Why should we tell our daughters they are smart rather than beautiful?
• Personal development: Career management .
• How does social change impact the life of an individual? Give examples.
• Piaget’s and Vygotsky’s child development theories.
• Suggest mentoring interventions for at-risk adolescents.
• Adult learning and effective instruction .
• To which extent should we normalize children with developmental disorders?
• Negative impacts of adult cartoon television programs on children .
• Do developmental differences make us more human?
• Social psychology in people’s life.
• Do all families need psychotherapy, like they need a family doctor?
• Childhood sexual abuse and adolescents’ self-esteem .
• Which barriers do LGBT adolescents meet in their development?
• Life-span development and personal life experiences .
• Outline a positive youth development program.
• Understanding learning: theories’ impacts.
• Explain eating disorders as the result of incorrect upbringing.
• The influence of online games on children and adults .
• Describe the changes our brain suffers under continuous stress.
• The psychological effect of 9-11 on young adults .
• Typical vs. Atypical development in children.
• Social psychology: group influence on the self.
• Why is mindfulness important for human development?
• Importance of a teacher in child development .
• We learn behavioral health from our parents.
• Divorce influence on childrens’ mental health.
• How do behavioral phenotypes emerge during early development?
• Child development theories: Comparative analysis .
• Why do many children function differently in home, school, or community settings?
• Communication role in the children’ development .
• Suggest ways to identify co-occurring conditions in developmental disorders.
• Psychological child development theories.
• Describe the existing approaches to establishing healthy schools.
• Piaget’s stages of cognitive development .
• Parental autonomy vs. Monitoring: which is better for an adolescent?
• Postpartum depression effect on children’s development .
• How do parents’ beliefs and values determine their parenting strategies?
• Childhood and optimal development analysis .

77 Human Development Topics (Economics)

• How entrepreneurship in the energy sector can pave the way for sustainable development in Africa .
• What are the parties involved in human development, and why don’t they share the same interests?
• Should we care about income inequality ?
• Why does totalitarianism entail stagnation?
• Democratic and Economic Development in Asian Countries.
• Do migrant incomes spur economic development in their native countries?
• International human resource development .
• How does the growth of female entrepreneurship favor economics?
• A development of American society .
• How can equal rights and possibilities of all people make governments more efficient?
• Resolving the problems of poverty and income inequality .
• How does the availability of loans benefit human development?
• Development Theory and Human Rights.
• Should towns transform into cities to become more prosperous?
• Resource availability for low to moderate income families in New York City .
• Is feminism a sign of human evolution?
• Rapid urbanization in the developing world is increasing .
• What is the impact of literacy campaigns in socially disadvantaged rural areas?
• Poverty reduction in developing countries .
• Find the relationship between water resources and the level of farming development in a given region.
• Human Rights for Development.
• Explore the growing urban-rural interactions in large cities.
• Employment opportunity for people with learning disabilities in the UK .
• Give examples of win-win scenarios in human evolution.
• Analysing a community development: Case study .
• Why do societies often ignore or resist the advantages of human development?
• How innovation and growth strategy will develop Abu Dhabi economy through Abu Dhabi Economic Vision 2030 .
• Study the role of recreational possibilities for the local population.
• Values of innovation and entrepreneurship in economic development .
• The effect of food availability on human development.
• Millennium Development and Well-Being of Families.
• Do you support transnational social movements, and why?
• Compensation and benefits in an area of human resources development .
• Do religions favor economic development?
• Influence of religion on the development of colonial American society .
• Analyze the impact of socioeconomic context on human development.
• Is nationalism beneficial for a country’s well-being?
• The development of the industrial work environment .
• Which factors impede poor people from growing their capital?
• Crime prevention through social development .
• Is leisure more critical for economic growth than production?
• Alternative Fuels and the US Nation Development.
• Should the government regulate human development, or is it unpredictable?
• Development traps and failure: The negative consequences of disasters on the economy .
• What are the external factors of human development in emerging countries?
• Fiscal decentralisation and local economic development in Ghana .
• Human Development Index (HDI) Vs. Gross Domestic Product (GDP).
• National human resource development in Asian states .
• Which aspects would you include in the HDI formula?
• Is late retirement beneficial for a country’s economic development?
• Environment: Sustainable Development in Abu Dhabi.
• Which material conditions affect human evolution?
• The critical points of equal employment opportunity .
• The role of sustainable development in a country’s well-being.
• Globalization drives inequality: Liberalist and structuralist perspectives .
• What is the primary goal of human development for economics?
• The income gap in the US economy .
• Are elevated birth rates a positive or negative factor for economic growth?
• Human resources development in the UK and Australia .
• What is the relationship between foreign capital penetration and human life expectancy in third-world countries?
• Economic and Social Development of the UAE.
• How does ethnic homogeneity influence human development in a given area?
• Gender wage gap and inequality .
• Why is the majority of wealthy countries democratic?
• Human resource development practices to achieve economic growth: The case of Singapore .
• Analyze the role of free medicine in social well-being.
• How can the employment of the disabled favor a country’s economy?
• Assessing why Nigeria LNG has been restricted in development .
• How is the work/family balance of employees important for a company’s prosperity?
• Workforce development and modern trends .
• Explore the effect of an individual’s well-being on a country’s development.
• Small business and development in South Africa .
• How does democratization improve a country’s productivity?
• Regional inequality of Yogyakarta .
• How does English training in third-world countries influence their development?
• Post-disaster development of Haiti .
• New conceptions of adulthood among the youth in the developing countries.

🧒 Human Growth and Development Essay Topics

• The impact of aging on human development.
• How do role models promote moral and behavioral development in the 21st century?
• Socioeconomic factors and their value in growth and development.
• The development of moral predispositions at an early age.
• The value of professional development of a person.
• Genetic regulation of growth in height and weight in teenagers.
• The role of initiative and guilt in the preschool age group.
• What are the main red flags in growth and development?
• Child health and human development over the lifespan.
• Emotional development of a person from birth to old age.
• Regulation of early human growth: the main peculiarities.
• COVID-19 and its role in children’s social development.
• How does environmental pollution affect human growth and development?
• The language development in humans and its key stages.
• How does maternal physical activity influence fetal growth?

Haven’t found the perfect topic in the lists above? Use our essay topic generator !

📑 Human Development Essay Outline

1. Introduction. By the end of your essay, your readers will surely forget what you wrote here. But do not underestimate the effect of a well-composed introduction on your audience’s expectations! Do your best to sound inspiring and upbeat in your human development essay introduction. Tell yourself, why did you select this topic? If it is an exciting issue for you, the readers will also get interested. So, the introduction speaks about the topicality and urgency of a problem. The thesis statement culminates your introduction. You should explain your position in a single sentence. Here are some good and bad examples:

Need to formulate a thesis statement? Use our thesis-making tool !

2. Main body. The primary rule here is structure. It is hard to read one long paragraph with many ideas. Introduce each argument from the new line. Give a topic sentence at the beginning of each section and then elaborate on it with examples and reflections.

3. Conclusion. In the field of human development, the conclusion of an essay should provide the prospects of the tendency you analyzed. Imagine yourself an analyst consulting an international company. What will happen if they continue doing the same? How can they reach different results? Once again, try to sound inspiring.

1️⃣ Human Development Essay Example #1 (Psychology)

Below you will find a sample of human development essays for a psychology-related discipline. It illustrates the outline we have mentioned above based on the topic Why Is Freud’s Developmental Theory considered outdated?

Human Development Theories Essay

1. Introduction. In the XXI century, we are all obsessed with development. We would like to become a better version of ourselves, develop our country, and humanity as a whole. Unfortunately, there is no axiom confirming the mechanism of human development.

Thesis statement. This essay explores the pitfalls of Freud’s developmental theory and questions its applicability.

2. Main Body.

Argument 1. Freud drew his theory from memories of his patients. But certain experiences people believe are true often turn out to be inaccurate. Sometimes, we fabricate our memories due to how we felt back then or would like to feel now. Thus, Freud used unreliable sources of information about child development.

Argument 2. Freud’s theory revolves around sexuality . But as Jung and Adler noticed, human life is more complicated than that. Oversimplification reduces us to instincts, which is not true. People have their subconscious fears and desires, but sexual energy is only one of their aspects.

Argument 3. Sigmund Freud only worked with adults. All adults are former children, but the researcher never studied children in their games, education, or frustrations. Freud had six kids, but his career never allowed him to spend much time with family. It is questionable how someone could draw conclusions about a child’s mental processes without actually speaking to a child.

3. Conclusion. Sigmund Freud largely contributed to modern psychology. He was the first to question our rational thinking and intellectual sobriety. But his five stages of psychosexual development are far from reality. First, they are constructed based on inaccurate and unreliable reports of mentally disturbed people. Second, sexuality is only one of the many things that make us who we are. Third, the scientist never did live research on children. That is why his theory is outdated now.

2️⃣ Human Development Essay Example #2 (Economics)

If you need to write an essay on human development while studying economics, you may use the following sample. It illustrates how to write an essay on the relationship between human development and economic growth.

Human Development and Economic Growth

1. Introduction. What happened first, human development or economic growth ? The early signs of economic growth appeared when the first people started exchanging their goods with the neighboring tribes. They had to develop a new skill and change their picture of the world to catalyze economic growth.

Thesis statement. This essay aims to confirm the two-way linkage between the development of individuals and economic growth.

Argument 1. If that first exchange of crops and cattle did not work out, we would have never got as developed as we are now. The economic growth that happened once we had mastered “business negotiations” gave us the necessary resources to develop other skills.

Argument 2. Human development is hardly predictable. The most significant improvements in technology, medicine, construction, and science happened during the most challenging times for humanity. The two world wars showed that we could develop when the economy is in decay. But the new production methods and scientific achievements give us an opportunity to grow the economy when things get better.

Argument 3. Economic growth without human development is limited. For example, when a third-world country receives an external capital inflow, its economy stabilizes or even grows. But if its population does not acquire new models of doing business, the money will end. Such a country will return to its previous poor condition.

3. Conclusion. It would be wrong to say that human development caused economic growth or vice versa. None of the two are possible without the other. Human development happened first, but further knowledge acquisition required economic growth. Improvement of the economy does not guarantee human intellectual growth. Meanwhile, it is an indispensable prerequisite for our development.

❓ Human Development Questions & Answers

What does the science of human development seek to understand.

This science tries to find the reasons why people tend to change over time or why they remain at the same level. It establishes the mechanisms through which we become more educated, moral, organized, and civilized. The science also describes the benefits and drawbacks of human development for the economy, sociology, psychology, and ecology.

What is Human Development and Family Studies?

Human Development and Family Studies focuses on the health and psychology of individuals throughout their lifespan. This area of knowledge discusses human life in the context of their family relationships and social roles. It is an interdisciplinary science that involves psychology, economy, and sociology.

How does culture affect human development?

Culture defines the way we perceive society and the world as a whole. It affects our vision of reality from early childhood. Culture influences our beliefs, values, and purposes. Moreover, it is a decisive factor for our self-image as an individual and a member of society.

What makes the study of human development a science?

The study of human development explores how we learn, mature, and adapt to changes and adverse conditions. It is largely related to psychology but also involves sociology, economics, anthropology, and biology. It is a science because it aims to describe, predict, and understand the changes in human behavior that bring us to development.

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Home / Online Bachelor’s Degree Programs / Online Bachelor’s in Human Development and Family Studies / Bachelor’s in Human Development and Family Studies Resources / Stages of Human Development: What It Is & Why It’s Important

What Is Human Development and Why Is It Important? What Is Human Development and Why Is It Important? What Is Human Development and Why Is It Important?

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Tables of Contents

• Eight Stages of Human Development?
• Theories of Human Development

Human Development vs. Developmental Psychology

What are the genetic factors that affect human growth and development, why do we study human growth and development.

Imagine two children born in the same town and the same year to families with similar socioeconomic statuses. One child grows up to be assertive and confident, while the other grows up to be timid and shy. The study of the stages of human development can help explain the reasons for these differences and much more.

What is human development, exactly? Human development is a branch of psychology with the goal of understanding people — how they develop, grow, and change throughout their lives. This discipline, which can help individuals better understand themselves and their relationships, is broad. As such, it can be used in various professional settings and career paths.

What Are the Eight Stages of Human Development?

If human development is the study of how people change throughout their lives, how and when does this development happen? Many scientists and psychologists have studied various aspects of human development, including ego psychologist Erik Erikson. He examined the impact of social experiences throughout an individual’s life and theorized that  psychosocial development happens in eight sequential parts . What are the eight stages of human development?

Stage 1 — Infancy: Trust vs. Mistrust

In the first stage of human development, infants learn to trust based on how well their caregivers meet their basic needs and respond when they cry. If an infant cries out to be fed, the parent can either meet this need by feeding and comforting the infant or not meet this need by ignoring the infant. When their needs are met, infants learn that relying on others is safe; when their needs go unmet, infants grow up to be less trusting.

Stage 2 — Toddlerhood: Autonomy vs. Shame and Doubt

In addition to autonomy versus shame and doubt, another way to think of the second stage is independence versus dependence. Like in the first stage, toddlers go through this stage responding to their caregivers. If caregivers encourage them to be independent and explore the world on their own, toddlers will grow up with a sense of self-efficacy. If the caregivers hover excessively or encourage dependence, these toddlers grow up with less confidence in their abilities.

For example, if a toddler wants to walk without assistance in a safe area, the caregiver should encourage this autonomy by allowing the independent behavior. If the caregiver insists on holding the toddler’s hand even when it’s not necessary, this attention can lead to doubt later in life.

Stage 3 — Preschool Years: Initiative vs. Guilt

During the preschool years, children learn to assert themselves and speak up when they need something. Some children may state that they’re sad because a friend stole their toy. If this assertiveness is greeted with a positive reaction, they learn that taking initiative is helpful behavior. However, if they’re made to feel guilty or ashamed for their assertiveness, they may grow up to be timid and less likely to take the lead.

Stage 4 — Early School Years: Industry vs. Inferiority

When children begin school, they start to compare themselves with peers. If children feel they’re accomplished in relation to peers, they develop strong self-esteem. If, however, they notice that other children have met milestones that they haven’t, they may struggle with self-esteem. For example, a first grader may notice a consistently worse performance on spelling tests when compared with peers. If this becomes a pattern, it can lead to feelings of inferiority.

The key components of Erikson’s model of human development include stage one, infancy, trust versus mistrust; stage two, toddlerhood, autonomy versus shame and doubt; stage three, preschool years, initiative versus guilt; stage four, early school years, industry versus inferiority; stage five, adolescence, identity versus role confusion; stage six, young adulthood, intimacy versus isolation; stage seven, middle adulthood, generativity versus stagnation; and stage eight, late adulthood, integrity versus despair.

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Stage 5 — Adolescence: Identity vs. Role Confusion

The adolescent stage is where the term “identity crisis” originated, and for good reason. Adolescence is all about developing a sense of self. Adolescents who can clearly identify who they are grow up with stronger goals and self-knowledge than teenagers who struggle to break free of their parents’ or friends’ influences. Adolescents who still deeply depend on their parents for social interaction and guidance may experience more role confusion than teenagers who pursue their own interests.

Stage 6 — Young Adulthood: Intimacy vs. Isolation

In young adulthood, which begins roughly at age 20, people begin to solidify their lifelong bonds; many people enter committed relationships or marriages, while others form lifelong friendships. People who can create and maintain these relationships reap the emotional benefits, while those who struggle to maintain relationships may suffer from isolation. A young adult who develops strong friendships in college may feel more intimacy than one who struggles to form and maintain close friendships.

Stage 7 — Middle Adulthood: Generativity vs. Stagnation

In middle adulthood, people tend to struggle with their contributions to society. They may be busy raising children or pursuing careers. Those who feel that they’re contributing experience generativity, which is the sense of leaving a legacy. On the other hand, those who don’t feel that their work or lives matter may experience feelings of stagnation. For example, a middle-aged adult who’s raising a family and working in a career that presumably helps people may feel more fulfilled than an adult who’s working at a day job that feels meaningless.

Stage 8 — Late Adulthood: Integrity vs. Despair

As adults reach the end of life, they look back on their lives and reflect. Adults who feel fulfilled by their lives, either through a successful family or a meaningful career, reach ego integrity, in which they can face aging and dying with peace. If older adults don’t feel that they’ve lived a good life, they risk falling into despair.

Other Theories of Human Development

Although widely used, Erikson’s psychosocial development theory has been critiqued for focusing too much on childhood. Critics claim that his emphasis makes the model less representative of the growth that people experienced in adulthood. Erikson’s model of the stages of human development is only one theory addressing growth and change throughout life, as many other psychologists have researched their own  theories of human development , including the following:

Cognitive Development

Jean Piaget developed the theory of cognitive development. Piaget’s theory is widely used in education programs to prepare teachers to instruct students in developmentally appropriate ways. The theory is based on four stages:

• Sensorimotor —  In the sensorimotor stage (birth to 2 years old), children learn object permanence, which is the understanding that people and objects still exist even when they’re out of view.
• Preoperational —  In the preoperational stage (2-7 years old), children develop symbolic thought, which is when they begin to progress from concrete to abstract thinking. Children in this stage often have imaginary friends.
• Concrete operational —  In the concrete operational stage (7-11 years old), children solidify their abstract thinking and begin to understand cause and effect and logical implications of actions.
• Formal operational —  In the formal operational stage (adolescence to adulthood), humans plan for the future, think hypothetically, and assume adult responsibilities.

Moral Development

Lawrence Kohlberg created a theory of human development based on moral development concepts. The theory comprises the following stages:

• Preconventional —  In the preconventional stage, people follow rules because they’re afraid of punishment and make choices only with their best interests in mind.
• Conventional —  In the conventional stage, people act to avoid society’s judgment and follow rules to maintain the systems and structures that are already in place.
• Postconventional —  In the postconventional stage, a genuine concern for the welfare of others and the greater good of society guides people.

Psychosexual Theory

Sigmund Freud popularized the  psychosexual theory . The theory comprises five stages:

• Oral —  In the oral stage (birth to 1 year old), children learn to suck and swallow and may experience conflict with weaning.
• Anal —  In the anal stage (1-3 years old), children learn to withhold or expel feces and may experience conflict with potty training.
• Phallic —  In the phallic stage (3-6 years old), children discover that their genitals can give them pleasure.
•   Latency —  In the latency stage (roughly 6 years old through puberty), they take a break from these physical stages and instead develop mentally and emotionally.
• Genital —  In the genital stage (puberty through adulthood), people learn to express themselves sexually.

Ideally, children move through each phase fluidly as their sexual libidos develop, but if they’re stuck in any of the phases, they may develop a fixation that hinders their development.

Behavioral Theory

The behavioral theory focuses solely on a person’s behaviors rather than the feelings that go alongside those behaviors. It suggests that behaviors are conditioned in an environment due to certain stimuli. Behavioral theorists believe that behavior determines feelings, so changing behaviors is important because this will in turn change feelings.

The  attachment theory  focuses on the deep relationships between people across their lifetime. An important attachment theory finding is that children must develop at least one strong bond in childhood to trust and develop relationships as adults. The attachment theory comprises four stages:

• Asocial or  pre-attachment   (birth to 6 weeks old)
• Indiscriminate attachment (6 weeks old to 7 months old)
• Specific or discriminate attachment (7-9 months old)
• Multiple attachments (10 months old or later)

Social Learning Theory

The social learning theory builds upon the behavioral theory and postulates that people learn best by observing the behavior of others. They watch how others act, view the consequences, and then make decisions regarding their own behavior accordingly. The four stages in this theory are:

• Reproduction

In the attention stage, people first notice the behavior of others. In the retention stage, they remember the behavior and the resulting consequences. In the reproduction stage, people develop the ability to imitate the behaviors they want to reproduce, and in the motivation stage, they perform these behaviors.

Sociocultural Theory

The  sociocultural theory  ties human development to the society or culture in which people live. It focuses on the contributions that society as a whole makes to individual human development. For example, children who are raised to play outdoors develop differently from children who are raised to play indoors.

An important part of this theory is the zone of proximal development, which is an area of knowledge and skills slightly more advanced than a child’s current level. The zone of proximal development helps teachers think about and plan instruction, so sociocultural theory plays a large role in preservice teacher training.

Resources: More Information on Theories of Human Development

• BetterHelp, “Behavioral Theory, Behavioral Psychology, or Behaviorism? How Behavior and Personality Intersect ”
• Encyclopedia Britannica, “Lawrence Kohlberg’s Stages of Moral Development”
• Healthline, “What Are Freud’s Psychosexual Stages of Development?”
• PositivePsychology.com, “What Is Attachment Theory? Bowlby’s 4 Stages Explained”
• Psychology Today , Social Learning Theory
• SimplyPsychology, “Lev Vygotsky’s Sociocultural Theory”
• SimplyPsychology, Theories of Psychology
• Verywell Mind, “The 4 Stages of Cognitive Development”

What are the differences between human development and developmental psychology? These terms are closely related. In fact, the study of developmental psychology is most people’s entry into human development.

Developmental psychology  is defined as a scientific approach to explaining growth, change, and consistency throughout a lifetime. It uses various frameworks to understand how people develop and transform throughout their lives. The goals of developmental psychology are to describe, explain, and optimize development to improve people’s lives. In the real world, developmental psychology is used in the study of physical, psychological, emotional, social, personality, and perceptual development.

The  study of developmental psychology  can lead to careers in several different fields. Developmental psychologists often work in colleges and universities and focus on research and teaching. Others work in healthcare facilities, clinics, assisted living facilities, hospitals, mental health clinics, or homeless shelters. In these applied settings, their focus is more on assessing, evaluating, and treating people. According to June 2020 data from PayScale, developmental  psychologists earn an average annual salary of about $68,000 .

One more key element of human growth and development left to explore is  genetics . Genetics influences the speed and way in which people develop, though other factors, such as parenting, education, experiences, and socioeconomic factors, are also at play. The multiple genetic factors that affect human growth and development include genetic interactions and sex chromosome abnormalities.

Genetic Interactions

Genes can act in an additive way or sometimes conflict with one another. For example, a child with one tall parent and one short parent may end up between the two of them, at average height. Other times, genes follow a dominant-recessive pattern. If one parent has brown hair and the other has red hair, the red hair gene is the dominant gene if their child has red hair.

Gene-Environment Interactions

Humans’ genetic information is always interacting with the environment, and sometimes this can impact development and growth. For example, if a child in utero is exposed to drugs, the child’s cognitive abilities may be impacted, thus changing the developmental process. In addition, even if a child’s genes would indicate a tall height, if that child experiences poor nutrition as children, it may impact their height.

Sex Chromosome Abnormalities

Sex chromosome abnormalities impact as many as 1 in 500 births. The following syndromes are examples of sex chromosome abnormalities that can impact development:

• Klinefelter syndrome  is the presence of an extra X chromosome in males, which can cause physical characteristics such as decreased muscle mass and reduced body hair and may cause learning disabilities.
• Fragile X syndrome  is caused by a mutation in the FMR1 gene that makes the X chromosome  appear fragile . It can cause intellectual disability, developmental delays, or distinctive physical features such as a long face.
• Turner syndrome  happens when one of the X chromosomes is missing or partially missing. It only affects females and results in physical characteristics like short stature and webbed neck.

Down Syndrome

Down syndrome  is another common example of how genetics can impact development. This chromosomal disorder may cause some individuals to experience physical or intellectual development differences. Down syndrome occurs at the 21st chromosomal site, in which people with Down syndrome have three chromosomes rather than two.

Those with Down syndrome often have different physical characteristics and may be prone to physical problems like heart defects and hearing problems. Most individuals with Down syndrome have intellectual impairment, but the degree of this impairment varies from person to person.

The top reasons for studying human development are to gain an understanding of your own life experience, help others understand what they’re going through, understand the relationship of society and individual growth, lead more effectively, and support the physical and mental health of others.

The study of human growth and development offers a wealth of value for personal and professional growth and understanding. Many reasons exist for why we study human growth and development.

Common benefits include the following:

• To  gain a better understanding  of one’s own life experiences. This can help people personally reach an understanding of what childhood events shaped their adulthood.
• To  gain knowledge  of how social context impacts development. This knowledge can be invaluable for professionals like teachers as they gain a deeper understanding of their students.
• To  help others understand and contextualize  the ups and downs of life. This helps therapists and psychologists better aid their clients in self-discovery.
• To  understand how societal change can support growth  and development. This understanding helps decision-makers in schools change the educational culture for the better.
• To  become a more effective research, teacher, or leader  in many different industries. Understanding human development deeply and in context has many professional benefits that can lead to greater insight.
• To  support the physical and mental health of individuals  throughout their life span. Professionals like doctors, nurses, and therapists must understand human growth and development to better support their clients.

Students may choose to study human growth and development because of its array of applications across many professional fields. For example, students who want to become elementary school teachers may take courses on the stages of human development to understand cognitive development and how children’s brains grow and change.

Human development is a wide-reaching and ever-changing discipline. A knowledge of human development can be invaluable to people personally as they continue to learn and grow throughout their lives and professionally as they learn to apply what they’ve learned to their careers.

Infographic Sources

Financial Express, “The Eight Stages of Human Development”

VeryWell Mind, “5 Reasons to Study Human Development”

Bring us your ambition and we’ll guide you along a personalized path to a quality education that’s designed to change your life.

Module 1: Lifespan Development

Defining human development, learning outcomes.

• Describe human development and its three domains: physical, cognitive, and psychosocial development
• Explain key human development issues about the nature of change: continuous/discontinuous, one course/multiple courses, and nature/nurture

Domains in Human Development

Figure 1 . Human development encompasses the physical, cognitive, and psychosocial changes that occur throughout a lifetime.

Physical Domain

Many of us are familiar with the height and weight charts that pediatricians consult to estimate if babies, children, and teens are growing within normative ranges of physical development. We may also be aware of changes in children’s fine and gross motor skills, as well as their increasing coordination, particularly in terms of playing sports. But we may not realize that physical development also involves brain development, which not only enables childhood motor coordination but also greater coordination between emotions and planning in adulthood, as our brains are not done developing in infancy or childhood. Physical development also includes puberty, sexual health, fertility, menopause, changes in our senses, and primary versus secondary aging. Healthy habits with nutrition and exercise are also important at every age and stage across the lifespan.

Cognitive Domain

If we watch and listen to infants and toddlers, we can’t help but wonder how they learn so much so fast, particularly when it comes to language development. Then as we compare young children to those in middle childhood, there appear to be huge differences in their ability to think logically about the concrete world around them. Cognitive development includes mental processes, thinking, learning, and understanding, and it doesn’t stop in childhood. Adolescents develop the ability to think logically about the abstract world (and may like to debate matters with adults as they exercise their new cognitive skills!). Moral reasoning develops further, as does practical intelligence—wisdom may develop with experience over time. Memory abilities and different forms of intelligence tend to change with age. Brain development and the brain’s ability to change and compensate for losses is significant to cognitive functions across the lifespan, too.

Psychosocial Domain

Development in this domain involves what’s going on both psychologically and socially. Early on, the focus is on infants and caregivers, as temperament and attachment are significant. As the social world expands and the child grows psychologically, different types of play and interactions with other children and teachers become important. Psychosocial development involves emotions, personality, self-esteem, and relationships. Peers become more important for adolescents, who are exploring new roles and forming their own identities. Dating, romance, cohabitation, marriage, having children, and finding work or a career are all parts of the transition into adulthood. Psychosocial development continues across adulthood with similar (and some different) developmental issues of family, friends, parenting, romance, divorce, remarriage, blended families, caregiving for elders, becoming grandparents and great grandparents, retirement, new careers, coping with losses, and death and dying.

As you may have already noticed, physical, cognitive, and psychosocial development are often interrelated, as with the example of brain development. We will be examining human development in these three domains in detail throughout the modules in this course, as we learn about infancy/toddlerhood, early childhood, middle childhood, adolescence, young adulthood, middle adulthood, and late adulthood development, as well as death and dying.

Who Studies Human Development and Why?

Many academic disciplines contribute to the study of development and this type of course is offered in some schools as psychology (particularly as developmental psychology); in other schools, it is taught under sociology, human development, or family studies. This multidisciplinary course is made up of contributions from researchers in the areas of health care, anthropology, nutrition, child development, biology, gerontology, psychology, and sociology, among others. Consequently, the stories provided are rich and well-rounded and the theories and findings can be part of a collaborative effort to understand human lives.

The main goals of those involved in studying human development are to describe and explain changes. Throughout this course, we will describe observations during development, then examine how theories provide explanations for why these changes occur. For example, you may observe two-year-old children to be particularly temperamental, and researchers offer theories to explain why that is. We’ll learn a lot more about theories, especially developmental theories, in the next module.

Key Issues in Human Development

• Is the change smooth or uneven (continuous versus discontinuous)?
• Is this pattern of change the same for everyone, or are there different patterns of change (one course of development versus many courses)?
• How do genetics and environment interact to influence development (nature versus nurture)?

Is Development Continuous or Discontinuous?

Continuous development views development as a cumulative process, gradually improving on existing skills (Figure 2). With this type of development, there is a gradual change. Consider, for example, a child’s physical growth: adding inches to their height year by year. In contrast, theorists who view development as discontinuous believe that development takes place in unique stages and that it occurs at specific times or ages. With this type of development, the change is more sudden, such as an infant’s ability to demonstrate awareness of object permanence (which is a cognitive skill that develops toward the end of infancy, according to Piaget’s cognitive theory—more on that theory in the next module).

Figure 2 . The concept of continuous development can be visualized as a smooth slope of progression, whereas discontinuous development sees growth in more discrete stages.

Is There One Course of Development or Many?

Is development essentially the same, or universal, for all children (i.e., there is one course of development) or does development follow a different course for each child, depending on the child’s specific genetics and environment (i.e., there are many courses of development)? Do people across the world share more similarities or more differences in their development? How much do culture and genetics influence a child’s behavior?

Stage theories hold that the sequence of development is universal. For example, in cross-cultural studies of language development, children from around the world reach language milestones in a similar sequence (Gleitman & Newport, 1995). Infants in all cultures coo before they babble. They begin babbling at about the same age and utter their first word around 12 months old. Yet we live in diverse contexts that have a unique effect on each of us. For example, researchers once believed that motor development followed one course for all children regardless of culture. However, childcare practices vary by culture, and different practices have been found to accelerate or inhibit the achievement of developmental milestones such as sitting, crawling, and walking (Karasik, Adolph, Tamis-LeMonda, & Bornstein, 2010).

For instance, let’s look at the Aché society in Paraguay. They spend a significant amount of time foraging in forests. While foraging, Aché mothers carry their young children, rarely putting them down in order to protect them from getting hurt in the forest. Consequently, their children walk much later: They walk around 23–25 months old, in comparison to infants in Western cultures who begin to walk around 12 months old. However, as Aché children become older, they are allowed more freedom to move about, and by about age 9, their motor skills surpass those of U.S. children of the same age: Aché children are able to climb trees up to 25 feet tall and use machetes to chop their way through the forest (Kaplan & Dove, 1987). As you can see, our development is influenced by multiple contexts, so the timing of basic motor functions may vary across cultures. However, the functions are present in all societies.

Figure 3. All children across the world love to play. Whether in (a) Florida or (b) South Africa, children enjoy exploring sand, sunshine, and the sea. (credit a: modification of work by “Visit St. Pete/Clearwater”/Flickr; credit b: modification of work by “stringer_bel”/Flickr)

How Do Nature and Nurture Influence Development?

Are we who we are because of nature (biology and genetics), or are we who we are because of nurture (our environment and culture)? This longstanding question is known in psychology as the nature versus nurture debate. It seeks to understand how our personalities and traits are the product of our genetic makeup and biological factors, and how they are shaped by our environment, including our parents, peers, and culture. For instance, why do biological children sometimes act like their parents—is it because of genetics or because of early childhood environment and what the child has learned from their parents? What about children who are adopted—are they more like their biological families or more like their adoptive families? And how can siblings from the same family be so different?

We are all born with specific genetic traits inherited from our parents, such as eye color, height, and certain personality traits. Beyond our basic genotype, however, there is a deep interaction between our genes and our environment. Our unique experiences in our environment influence whether and how particular traits are expressed, and at the same time, our genes influence how we interact with our environment (Diamond, 2009; Lobo, 2008). There is a reciprocal interaction between nature and nurture as they both shape who we become, but the debate continues as to the relative contributions of each.

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108 Human Development Essay Topics

🏆 best essay topics on human development, ✍️ human development essay topics for college, 👍 good human development research topics & essay examples, 🎓 most interesting human development research titles, ❓ human development research questions.

• Theories of Charles Horton Cooley and George Herbert Mead about Human Development
• The Impact of Communication on Human Development
• The Role of the Environment and Genes in Human Development
• Sustainable Human Development
• “Lifespan Human Development” by Sigelman, Carol, and Elizabeth Rider
• Bioecological Model of Human Development
• Art Education and Human Development
• Human Development and the Security and Safety Index The objective of this research was to look at the connection between human development and the security and safety index.
• Technologies Growth: Significance for Human Development Nowadays, various types of technologies are acknowledged to have become an integral part of people’s life. It is reasonable to claim that such progress might have a positive impact.
• Human Development Theories by Piaget, Vygotsky, and Erikson Several perspectives on the phenomenon of human development exist. These are represented by the framework designed by Piaget, Vygotsky, and Erikson.
• Developmental Research: Human Development Developmental research determines progress and development. This can be done by examining the relationship between factors contributing to that development.
• Research Designs in Human Development Studies This paper analyzes several types of research design, which include observational research technique, longitudinal design, cross-sectional research, and sequential research design.
• Human Development Psychology The Notebook novel is told in two versions; first, when Noah reads the notebook to a woman by the name Allie. He reads to her how Allie and Noah fall in love young.
• Cognitive Changes in Human Development Cognitive development is part of human development and refers to the abilities of individuals to acquire thinking, problem-solving, concept understanding.
• Human Development in Early Adulthood During their life, a person goes through many developmental stages, each associated with specific activities. This paper examines early adulthood.
• Analysis of Human Development Theories The paper focuses on the human development theories, such as classical conditioning, Hierarchy of Needs Theory, and social learning theory.
• Global Poverty and Human Development Poverty rates across the globe continue to be a major issue that could impair the progress of humanity as a whole.
• Adolescence and Human Development Challenges There are various questions about how puberty affects adolescents concerning the fact that not all people are impacted in the same way.
• Human Development Psychology: Stages, Socio-emotional Development, and Emotional Attachment Lifespan development is the growth of the physical, cognitive, and psychosocial changes that incurs throughout life.
• A Unified Theory of Human Development In the paper, the definition, benefits and disadvantages of a unified theory on human development will be discussed.
• Human Development Theories: The Science of Learning and Development There are many theories on how human development through different stages of life affects an individual’s life and mental health.
• Why Adolescents Take Drugs: Human Development Delinquent and irresponsible behaviors such as substance abuse, violence, and unsafe safe practices produce serious social and health implications.
• Child Labor’s Negative Impact on Human Development This paper argues that child labor is by far the worst form of atrocities because it inhibits positive development by robbing children of the opportunity to gain life skills.
• Human Development: Key Aspects The ecological perspective studies humans from an environmental standpoint, which includes social, emotional, and biological influences.
• Human Development Psychology Issues This paper summarizes learned information on the development of human, in particular transgender disorders and homosexuality, and personality development.
• Pregnancy, Human Development and Heredity This paper presents the physiological concepts that revolve around pregnancy and their implication in human development.
• Global Social Progress and Human Development The global social progress concept provides an opportunity to look at the development of the humankind as the process enhanced by a combination of multiple factors.
• Human Development in Zimbabwe The report covers’ human development’, it’s meaning, and measures within the context of Zimbabwe development by incorporating aspects of the United Nations Development Program.
• Mobile Phones’ Social Impacts on Sustainable Human Development
• Addiction and the Effects on Human Development
• Child Health and Human Development Over the Lifespan
• Foreign Direct Investment According to Different Countries’ Stages of Human Development
• Biological and Environmental Factors and Human Development
• How Nature and Nurture Affect Human Development
• Corruption and Human Development Correlation in Western Balkan Countries
• Determining the Relationship Between Happiness and Human Development
• Psychology and Human Development: Theory of Radical Behaviorism
• Human Development and Quality of Institutions in Highly Developed Countries
• Computers and Their Influence on Human Development
• Economic and Human Development in Global North and Global South
• Measuring Human Development and Environmental Sustainability in European Countries
• Developmental Psychology and Human Development
• Rainbows: Jean Piaget and Human Development
• Cognitive Development and Erikson’s Stages of Human Development
• Animal and Human Development Throughout the Ages
• Human Development and Income Inequality as Factors of Regional Economic Growth
• Genetic and Environmental Influences on Human Development
• Economic and Social Determinants of Human Development
• Capitalism, the State, and the Underlying Drivers of Human Development
• Human Development and Its Impact on the World
• Biological Human Development and Its Interaction With Environmental Influences
• Environmental Degradation and Inclusive Human Development in Sub‐Saharan Africa
• Civil War and Human Development: Impacts of Finance and Financial Infrastructure
• Natural Environment and Early Human Development
• Factors Affecting the Human Development Index
• Aid, Conflict, and Human Development
• Comprehensive Human Development: Realities and Aspirations
• Education and Human Development: How Much Do Parents Matter?
• Democratization and Human Development
• Poverty, Human Development, and Growth: An Emerging Consensus
• Human Development and Regional Disparities in India
• Ecological System and Its Effects on Human Development
• Dynamic Linkage Between Economic Growth and Human Development
• Climate Changes and Human Development
• Gender and Regional Inequality in Human Development
• Behaviorism and Human Development
• Migration, Poverty Reduction Strategies and Human Development
• Anxiety Disorder, Socialization, and Human Development
• Circular Migration and Human Development
• Economic and Human Development Policies Since Independence
• Gender Codes and the Human Development Indicator
• Counseling and Human Development in Multicultural Society
• Global Governance for Human Development
• Freud’s and Erikson’s Perspectives on Human Development
• Shaping the Future: How Changing Demographics Can Power Human Development
• Cultural and Political Influences on Human Development
• Energy Consumption Transition and Human Development
• Faith and Successful Human Development
• What Happens at Each Stage of Human Development?
• How Have the Natural Characteristics of Melanesia Affected Human Development?
• How Does Cultural Anthropology Influence Human Development?
• What Research Designs Are Used to Study Human Development?
• How Do the Foundations of Human Development Influence the Work of Mental Health Counselors?
• What Are the Main Theories of Human Development?
• How Does the Impact of the Human Development Process Differ From Learning?
• How Does Biology and the Environment Affect Human Development?
• When Was Sigmund Freud’s Theory on Human Development First Published?
• How Does Culture Affect Human Development?
• What Is Human Ecology about Human Development?
• How Does “Nature vs. Nurture” Influences Human Development?
• How Did Erik Erikson Apply the Epigenetic Principle to Human Development?
• How Do Heredity and Environment Interact to Influence Human Development?
• What Variables Does the Human Development Index Incorporate?
• Why Do Many Countries With High Gross Domestic Product Have a Low Human Development Index?
• How Many Stages Does the Human Development Have?
• Why Lifelong Motor Development Is a Vital Part of Human Development?
• What Factors Best Explain Human Development?
• At What Stage During Human Development Does the Lumbar Curve of the Spine Develop?
• What Does the Science of Human Development Seek to Understand?
• What Period of Human Development Brings About the Most Rapid Change?
• What Importance Does Social or Moral Development Have for Human Development?
• What Is the Critical Period Hypothesis of Human Development?
• How Do Philosophy, Psychology, and Sociology Each Relate to Human Development?
• How Does Neuroscience Relate to Human Development?
• What Makes the Study of Human Development a Science?
• What Is the Cognitive Domain in Human Development?
• Is Human Development a “Means” to Achieve Economic Growth?
• How Does Physical Geography Impact Human Development and Settlement?

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What is Development?

Human Development or Lifespan Development is the scientific study of the ways in which people change, as well as remain the same, from conception to death. You will discover that the field, known more broadly as developmental science , examines changes and stability across multiple domains of psychological and social functioning. These include physical and neurophysiological processes, cognition, language, emotion, personality, moral, and psychosocial development, including our relationships with others.

Originally concerned with infants and children, the field has expanded to include adolescence and more recently, aging and the entire life span. Previously, the message was once you are 25, your development is essentially completed. Our academic knowledge of the lifespan has changed, and although there is still less research on adulthood than on childhood, adulthood is gaining increasing attention. This is particularly true now that the large cohort known as the “baby boomers” are beginning to enter late adulthood. The assumption that early childhood experiences dictate our future is also being called into question. Instead, we have come to appreciate that growth and change continues throughout life and experience continues to have an impact on who we are and how we relate to others. We now recognize that adulthood is a dynamic period of life marked by continued cognitive, social, and psychological development.

You will also discover that developmental psychologists investigate key questions, such as whether children are qualitatively different from adults or simply lack the experience that adults draw upon. Other issues they consider include the question of whether development occurs through the gradual accumulation of knowledge or through qualitative shifts from one stage of thinking to another, or if children are born with innate knowledge or figure things out through experience, and whether development is driven by the social context or something inside each child. From these questions, you may already be thinking that developmental psychology is related to other applied fields. You are right. Developmental science informs many applied fields, including, educational psychology, developmental psychopathology, and intervention science. It also complements several other basic research fields in psychology including social psychology, cognitive psychology, and cross-cultural psychology. Lastly, it draws from the theories and research of several scientific fields including biology, sociology, health care, nutrition, and anthropology.

Learning Objectives: Lifespan Perspective

• Explain the lifespan perspective and its assumptions about development
• Differentiate periods of human development
• Identify key assumptions and major meta-theories underlying lifespan development 
• Identify major historical and contemporary theories focusing on lifespan development

Lifespan Perspective

Paul Baltes identified several underlying principles of the lifespan perspective (Baltes, 1987; Baltes, Lindenberger, & Staudinger, 2006).

• Development is lifelong . Lifespan theorists believe that development is life-long, and change is apparent across the lifespan. No single age period is more crucial, characterizes, or dominates human development. Consequently, the term lifespan development will be used throughout the textbook.
• Development is multidirectional and multidimensional.  Lifespan researchers hold that different people follow different developmental pathways, and proceed along pathways at different rates. Even within the same person, different dimensions or domains of development can change in different ways.
• Development includes both gains and losses . Lifespan theorists do not agree with the traditional view of development that childhood is a period characterized by developmental gains, whereas old age is a time of loss. Instead, the lifespan approach holds that at every age, we may show gains in some areas of development, while showing losses in other areas. Every change, whether it is finishing high school, getting married, or becoming a parent, entails both growth and loss.
• Development is characterized by plasticity. Plasticity is about malleability , or our potential to change and to follow a wide range of developmental pathways.  For instance, plasticity is illustrated in the brain’s ability to learn from experience and the many ways it can recover from injury.
• Development is embedded in historical and cultural contexts. Lifespan researchers believe that d evelopment is influenced by the many social contexts in which it unfolds. How  people develop will depend on their societal and cultural contexts, and on the historical period during which their development takes place.
•   Development is multiply determined. Lifespan theorists argue that development is caused by multiple factors, and is always shaped by  both biological and environmental factors. In addition, the individual plays an active role in their own development.
• Development is multidisciplinary. As mentioned at the start of the chapter, human development is such a vast topic of study that it requires the theories, research methods, and knowledge bases of many academic disciplines.

Contextualism as paradigm.  Baltes (1987) identified three specific developmental systems of influence, all of which include biological and environmental forces.

• Normative age-graded influences: An age-grade is a specific age group, such as toddler, adolescent, or senior . Humans experience particular age-graded social experiences (e.g., starting school) and biological changes (e.g., puberty).
• Normative history-graded influences: The time period in which you are born (see Table 1.1) shapes your experiences. A cohort is a group of people who are born at roughly the same period in a particular society. These people travel through life often experiencing similar historical changes at similar ages. History-graded influences include both environmental determinants (e.g., historical changes in the job market) and biological determinants (e.g., historical changes in life expectancy).
• Non-normative influences : People’s development is also shaped by specific influences that are not organized by age or historical time, such as immigration, accidents, or the death of a parent. These can be environmental (e.g., parental mental health issues) or biological (e.g., life threatening illness).

Table 1.1. Which generation (cohort) are you?

adapted from Lally & Valentine-French, 2019

Domains of development. We change across three general domains/dimensions; physical, cognitive, and psychosocial. The physical domain includes changes in height and weight, sensory capabilities, the nervous system, as well as the propensity for disease and illness . The cognitive domain encompasses the changes in intelligence, wisdom, perception, problem-solving, memory, and language. The psychosocial domain focuses on changes in emotion, self-perception and interpersonal relationships with families, peers, and friends. All three domains influence each other. It is also important to note that a change in one domain may cascade and prompt changes in the other domains. For instance, an infant who has started to crawl or walk will encounter more objects and people, thus fostering developmental change in the child’s understanding of the physical and social world.

Contextual perspectives , like the lifespan approach, highlight societal contexts that influence our development. An important societal factor is our social standing, socioeconomic status, or social class. Socioeconomic status (SES) is a way to identify families and households based on their shared levels of education, income, and occupation. While there is certainly individual variation, members of a social class tend to share similar privileges, opportunities, lifestyles, patterns of consumption, parenting styles, stressors, religious preferences, and other aspects of daily life. All of us born into a class system are socially located, and we may move up or down depending on a combination of both socially and individually created limits and opportunities.

Families with higher socioeconomic status usually are in occupations (e.g., attorneys, physicians, executives) that not only pay better, but also grant them a certain degree of freedom and control over their job. Having a sense of autonomy or control is a key factor in experiencing job satisfaction, personal happiness, and ultimately health and well-being (Weitz, 2007). Those families with lower socioeconomic status are typically in occupations that are more routine, more heavily supervised, and require less formal education. These occupations are also more subject to job disruptions, including lay-offs and lower wages.

Poverty level is an income amount established by the federal government that is based on a set of thresholds that vary by family size (United States Census Bureau, 2016). If a family’s income is less than the government threshold, that family is considered in poverty. Those living at or near poverty level may find it extremely difficult to sustain a household with this amount of income. Poverty is associated with poorer health and a lower life expectancy due to poorer diet, less healthcare, greater stress, working in more dangerous occupations, higher infant mortality rates, poorer prenatal care, greater iron deficiencies, greater difficulty in school, and many other problems. Members of higher income status may fear losing that status, but the poor may have greater concerns over losing housing.

Today we are more aware of the variations in development and the impact that culture and the environment have on shaping our lives. Culture is the totality of our shared language, knowledge, material objects, and behavior. It includes ideas about what is right and wrong, what to strive for, what to eat, how to speak, what is valued, as well as what kinds of emotions are called for in certain situations. Culture teaches us how to live in a society and allows us to advance because each new generation can benefit from the solutions found and passed down from previous generations. Culture is learned from parents, schools, houses of worship, media, friends and others throughout a lifetime. The kinds of traditions and values that evolve in a particular culture serve to help members function and value their own society. We tend to believe that our own culture’s practices and expectations are the right ones. This belief that our own culture is superior is called ethnocentrism and is a normal by-product of growing up in a culture. It becomes a roadblock, however, when it inhibits understanding of cultural practices from other societies. Cultural relativity is an appreciation for cultural differences and the understanding that cultural practices are best understood from the standpoint of that particular culture.

Culture is an extremely important context for human development and understanding development requires being able to identify which features of development are culturally based. This understanding is somewhat new and still being explored. Much of what developmental theorists have described in the past has been culturally bound and difficult to apply to various cultural contexts. The reader should keep this in mind and realize that there is still much that is unknown when comparing development across cultures.

Lifespan vs. Life expectancy: At this point you must be wondering what the difference between lifespan and life expectancy is, according to developmentalists. Lifespan , or longevity, refers to the maximum age any member of a species can reach under optimal conditions . For instance, the grey wolf can live up to 20 years in captivity, the bald eagle up to 50 years, and the Galapagos tortoise over 150 years (Smithsonian National Zoo, 2016). The longest recorded lifespan for a human was Jean Calment who died in 1994 at the age of 122 years, 5 months, and 14 days (Guinness World Records, 2016). Life expectancy is the average number of years a person born in a particular time period can typically expect to live (Vogt & Johnson, 2016).

Conceptions of Age

How old are you? Chances are you would answer that question based on the number of years since your birth, or what is called your chronological age . Ever felt older than your chronological age? Some days we might “feel” like we are older, especially if we are not feeling well, are tired, or are stressed out. We might notice that a peer seems more emotionally mature than we are, or that they are physically more capable. So years since birth is not the only way we can conceptualize age.

Biological age: Another way developmental researchers can think about the concept of age is to examine how quickly the body is aging , this is your biological age . Several factors determine the rate at which our body ages. Our nutrition, level of physical activity, sleeping habits, smoking, alcohol consumption, how we mentally handle stress, and the genetic history of our ancestors, to name but a few.

Psychological age: Our psychologically adaptive capacity compared to others of our chronological age is our psychological age . This includes our cognitive capacity along with our emotional beliefs about how old we are. An individual who has cognitive impairments might be 20 years of age, yet has the mental capacity of an 8-year-old. A 70- year-old might be travelling to new countries, taking courses at college, or starting a new business. Compared to others of our age group, we may be more or less active and excited to meet new challenges. Remember you are as young or old as you feel.

Social age: Our social age is based on the social norms of our culture and the expectations our culture has for people of our age group . Our culture often reminds us whether we are “on target” or “off target” for reaching certain social milestones, such as completing our education, moving away from home, having children, or retiring from work. However, there have been arguments that social age is becoming less relevant in the 21st century (Neugarten, 1979; 1996). If you look around at your fellow students at college you might notice more people who are older than traditional aged college students, those 18 to 25. Similarly, the age at which people are moving away from the home of their parents, starting their careers, getting married or having children, or even whether they get married or have children at all, is changing.

Those who study lifespan development recognize that chronological age does not completely capture a person’s age. Our age profile is much more complex than this. A person may be physically more competent than others in their age group, while being psychologically immature. So, how old are you?

Table 1.2 Age Periods of Development

Table 1.2 shows the developmental periods that will be explored in this book, starting with prenatal development and continuing thought late adulthood to death. Both childhood and adulthood are divided into multiple developmental periods. So, while both an 8-month old and an 8-year-old are considered children, they have very different motor abilities, social relationships, and cognitive skills. Their nutritional needs are different and their primary psychological concerns are also distinctive. The same is true of an 18-year-old and an 80-year-old, even though both are considered adults.

Prenatal Development : Conception occurs and development begins. All of the major structures of the body are forming, and the health of the mother is of primary concern. Understanding nutrition, teratogens , or environmental factors that can lead to birth defects , and labor and delivery are primary concerns.

Infancy and Toddlerhood : The first two years of life are ones of dramatic growth and change. A newborn, with a keen sense of hearing but very poor vision, is transformed into a walking, talking toddler within a relatively short period of time. Caregivers are also transformed from someone who manages feeding and sleep schedules to a constantly moving guide and safety inspector for a mobile, energetic child.

Early Childhood: This period is also referred to as the preschool years and consists of the years that follow toddlerhood and precede formal schooling. As a two to six-year-old, the child is busy learning language, gaining a sense of self and greater independence, and  beginning to understand the workings of the physical world.

Middle and Late Childhood: The ages of six to the onset of puberty comprise middle and late childhood, and much of what children experience at this age is connected to their involvement in the early grades of school. Now the world becomes one of learning and testing new academic skills, and assessing one’s abilities and accomplishments by making comparisons between self and others.

Adolescence : Adolescence is a period of dramatic physical change marked by an overall growth spurt and sexual maturation, known as puberty . It is also a time of cognitive change as the adolescent begins to think of new possibilities and to consider abstract concepts such as love, fear, and freedom. At the same time, adolescents have a sense of invincibility that puts them at greater risk of accidents or contracting sexually transmitted infections that can have lifelong consequences.

Emerging Adulthood: The period of emerging adulthood is a transitional time between the end of adolescence and before individuals acquire all the benchmarks of adulthood. Continued identity exploration and preparation for full independence from parents are negotiated. Although at one’s physiological peak, emerging adults are most at risk for involvement in violent crimes and substance abuse.

Early Adulthood : The twenties and thirties are identified as early adulthood. Intimate relationships, establishing families (of all shapes and sizes), and work are primary concerns at this stage of life.  For adults with children, developmental changes can become organized around the family life cycle.

Middle Adulthood : The forties through the mid-sixties are referred to as middle adulthood. This is a period in which aging becomes more noticeable and when many people are at their peak of productivity in love and work.  At this age, some people are negotiating adolescent children and aging parents at the same time.

Late Adulthood : Late adulthood is sometimes subdivided into two categories: The young-old who are from 65-84 years and the oldest-old who are 85 years and older. One of the primary differences between these groups is that the young-old are still relatively healthy, productive, active, and the majority continue to live independently. With both age groups the risks of diseases such as arteriosclerosis, cancer, and cerebral vascular disease increase substantially.

Meta-theories of Human Development

The study of development is guided by the assumptions researchers hold about the nature of humans and their development. These assumptions are called meta-theories . “Meta” means “above” or “beyond,” like “meta-physics.” Other terms used to describe meta-theories are “world views,” “cosmologies,” “perspectives,” or “paradigms,” as in “paradigm shifts.” Explicit discussions of meta-theories are found most often in philosophy.

What are meta-theories of human development?

Meta-theories (or world views or paradigms) of human development are sets of assumptions people hold about the nature of humans and the meaning of development — what it looks like, how it happens, what causes it. These assumptions are important because everyone has them, including researchers, but they are often implicit, meaning we are not always consciously aware of them. In the study of development, such assumptions influence everything about how research is conducted: the questions we ask, the measures and methods that are used, and the interpretation of data. For example, if researchers assume that development ends at 18, they do not look for developmental changes after that age. Or, if researchers assume that aging is a process of decline, then they never look for characteristics that might improve as people get older.

All researchers have meta-theories, since assumptions are baked into the theories and methodologies they use. But researchers are often unaware of them, and so these assumptions are rarely acknowledged. It is important to note that meta-theories are not just cold cognitions. They are often deeply held convictions that researchers will fiercely defend. Typically researchers think that their assumptions are self-evident truths. They are often convinced that their assumptions are right and everyone else’s are wrong.

Researchers holding different meta-theories can have difficulty communicating with each other. Since they are asking different questions and using different truth criteria for research, they often argue past each other or misunderstand each other. One group of researchers will offer what they consider to be irrefutable proof of their ideas, which other researchers then dismiss as irrelevant. Discrepancies, inconsistencies, arguments, and furor often characterize an area of study in which researchers from multiple meta-theories are working.

What kinds of assumptions guide the study of human development?

We consider six key assumptions. You may have heard of many of them, since they are perennial issues in the study of development. They include:

• Assumptions about human nature : whether people are born as blank slates ( tabula rasa ) or whether people are inherently good or inherently bad.
• Assumptions about the causes of development : whether development is determined by nature (genes, biology) or determined by nurture (environment, learning).
• Assumptions about the role of the individual in his or her own development: whether people are passive participants, reacting to external forces or whether they are active in choosing and shaping their own development.
• Assumptions about stability vs. change : whether traits, characteristics, and experiences early in life have permanent effects or whether people are malleable and open to change throughout life.
• Assumptions about continuity vs. discontinuity : whether development involves quantitative incremental change or qualitative shifts.
• Assumptions about universality vs. context specificity : whether development follows a universal pathway or depends more on specific experiences and environmental contexts.

Nature of humans. What is the nature of humans? These assumptions refer to beliefs about the underlying qualities of our species– whether humans are born as blank slates ( tabula rasa ) or whether we all bring intrinsic human characteristics with us into the world. For example, these different assumptions are readily apparent in alternative conceptualizations of motivation—some theories assume that motives and motivation are all acquired, whereas others assume that all humans come with intrinsic motivations.

Nature and Nurture: Why are you the way you are? As you consider some of your features (height, weight, personality, being diabetic, etc.), ask yourself whether these features are a result of heredity or environmental factors, or both. Chances are, you can see the ways in which both heredity and environmental factors (such as lifestyle, diet, and so on) have contributed to these features. For decades, scholars have carried on the “nature/nurture” debate. For any particular feature, those on the side of nature would argue that heredity plays the most important role in bringing about that feature. Those on the side of nurture would argue that one’s environment is most significant in shaping the way we are. This debate continues in all aspects of human development, and most scholars agree that there is a constant interplay between the two forces. It is difficult to isolate the root of any single behavior as a result solely of nature or nurture.

Active versus Passive: How much do you play a role in your own developmental path? Are you at the whim of your genetic inheritance or the environment that surrounds you? Some theorists see humans as playing a much more active role in their own development. Piaget, for instance believed that children actively explore their world and construct new ways of thinking to explain the things they experience. In contrast, many behaviorists view humans as being more passive in the developmental process.

Stability versus Change: How similar are you to how you were as a child? Were you always as out-going or reserved as you are now? Some theorists argue that the personality traits of adults are rooted in the behavioral and emotional tendencies of the infant and young child. Others disagree, and believe that these initial tendencies are modified by social and cultural forces over time.

Continuity versus Discontinuity: Is human development best characterized as a slow, gradual process, or is it best viewed as one of more abrupt change? The answer to that question often depends on which developmental theorist you ask and what topic is being studied. The theories of Freud, Erikson, Piaget, and Kohlberg are called stage theories. Stage theories or discontinuous development assume that developmental change occurs in distinct stages that are qualitatively different from each other, and that unfold in a set, universal sequence . At each stage of development, children and adults have different qualities and characteristics. Thus, stage theorists assume development is discontinuous. Others, such as the behaviorists, Vygotsky, and information processing theorists, assume development is a more slow and gradual process known as continuous development . For instance, they would see the adult as not possessing new skills, but as using more advanced skills that were already present in some form in the child. Brain development and environmental experiences contribute to the acquisition of more developed skills.

Universal vs. context specific . A final assumption focuses on whether pathways of development are presumed to be (1) normative and universal, meaning that all people pass through them in the same sequence, or (2) differential and specific, meaning that a variety of different patterns and pathways of developmental change are possible depending on the individual and the context. Some theorists, like Piaget or Erickson, assume that everyone progresses through the same stages of cognitive development in the same order, or that everyone negotiates the same set of developmental tasks at about the same ages. Other theorists, who endorse lifespan or ecological systems approaches, believe that development can take on a wide variety of patterns and pathways, depending on the specific cultural, historical, and societal under which it unfolds.

What are the guiding meta-theories in human development?

These six basic assumptions are clustered into “packages” that go together. Clusters are organized around metaphors, which are at the root of meta-theories of humans and their development. We consider four meta-theories, each with its own metaphor: (1) humans as seeds , as depicted by Maturational meta-theories; (2) humans as machines , as depicted in Mechanistic meta-theories (3) humans as butterflies , as depicted in Organismic meta-theories; and (4) humans as participants in a tennis game, conversation, or dance , as depicted by Contextualist meta-theories. For an overview of these guiding meta-theories, see this chart [pdf] .

• Maturational meta-theory : Maturational meta-theories can be understood using the plant as a metaphor. It is as if humans develop the same way as plants. The important thing to study is people’s “seeds,” that is, their genetic make-up. People are assumed to be passive, the product of their genes. The environment can provide support and nutrition (rain, sun, and soil), but can’t change a person’s nature (poppy seeds will always produce poppies). The role of the person is to be reactive—to their genes. The course of development will be continuous or discontinuous depending on the genetic program, although acorns always grow into oak trees.
• Mechanistic meta-theory : Mechanistic meta-theories can be understood using the machine as a metaphor. It is as if humans change the same way as machines. People are assumed to be made up of pieces that can be studied apart from the rest of them. They are passive, with the energy coming from outside (like gasoline for a car). Development is continuous and people do not develop into something else (a car stays a car). The person can only react to the environment that is controlling them (like a car responding to the gas pedal or the brake). All causes for development come from the outside, from environmental forces.
• Organismic meta-theory : Organismic meta-theories can be understood using the butterfly as a metaphor. It is as if humans develop the same way as butterflies. People are assumed to be made up of structured wholes. Their nature is to be curious, interested, and open to growth. They are active and develop through discontinuous qualitatively different stages (like the caterpillar, chrysalis, and butterfly). People construct their own next steps in development based on the affordances and opportunities provided by the environment. Development is caused by imbalances that lead to structural reorganizations. Development is progressive (gets better) and only goes in one direction (from caterpillar toward butterfly) and not the reverse.
• Contextual meta-theory : Contextual meta-theories can be understood using the tennis game (or dance) as a metaphor. It is as if humans’ development is like a game of tennis or a dance. The important thing to study is the back and forth between the person and his or her context, both of which are assumed to be proactive and acting on their own agendas. Development can be continuous or discontinuous depending on how the game is played. Both person and environment are active partners in the system, which can lead to transformations in both.

What are examples of theories that fall within each meta-theory?

Nested within each higher-order meta-theory are sets of lower-level approaches or theories called “families” of perspectives or theories to denote that they share common properties, based on their similarity to the root metaphors and characteristics of the guiding meta-theories. This table contains several examples of “big” theories of development and provides an analysis of their defining features according to the meta-theoretical assumptions we have been discussing [pdf]. Based on this analysis, we indicate the higher-order family to which we think each big theory or approach belongs.

Although maturational meta-theories were prevalent in the beginning of the 20th century, their popularity has waxed and waned since then, and they have taken on many different forms. These include some formulations of behavioral genetics, sociobiology, evolutionary, ethological, neuroscience, temperament, and personality theories. Maturational assumptions are signaled by concepts such as “trait,” the search for “the aggression gene,” the discovery of the brain system, hormone, or neurotransmitter responsible for a specific condition, or any other terms that suggest development is solely the product of innate or immutable characteristics of individuals. Although they are not typically referred to as “maturational,” there are many kinds of theories that place all the active ingredients of behavior or development inside the head (or more specifically the social cognitions) of the person. Even if they are not direct descendants, these theories can be considered cousins of Maturational meta-theories because they are exclusively focused on the role of the individual.

The prototypic Mechanistic theories are behaviorist, operant, and classical conditioning learning theories, like social learning theory. This family of theories dominated psychology from the early to the mid-20th century, but Mechanistic theories are still alive and well in many areas, such as learning and motivation, and especially in many theories that have been adapted for use in educational systems. New kinds of machines serve as prototypes for mechanistic theories of memory, learning, and automatic functioning—focusing on the computer, the robot, and the automaton. Such assumptions have even pervaded our understanding of biological systems, as seen in metaphors like “the brain is a computer.” And although the “cognitive revolution” was supposed to have overthrown behaviorist assumptions, some cognitivistic theories treat humans as if they were information processing machines.

Perhaps surprisingly, there are also mechanistic assumptions embedded in certain progressive analyses of the effects of societal and social conditions, such as poverty, oppression, racism, and discrimination, which sometimes seem to imply that these external forces are the sole determinants of the development of stereotypes or implicit attitudes. In this case, because all people are presumed to passively internalize these societal prejudices, psychological phenomena are modeled after the metaphor of the “Xerox machine.” Just as in Maturational meta-theories, where humans could be seen as “hosts” to their genes, who were really running the show, in Mechanistic meta-theories, humans can be seen as “hosts” to their own behaviors, which are automatically reflexively produced based on previous social programming.

The prototypical Organismic theory is Piaget’s constructivist theory of cognitive and affective development, and the several neo-constructivist theories that were inspired by Piaget, for example, Kohlberg’s theory of the development of moral reasoning. Other theories living under the Organismic umbrella include Werner’s comparative psychology, focusing on the orthogenetic principle of differentiation and integration, and Erikson, who posited universal age-graded developmental tasks. Other theories that claim kinship with Organismic meta-theories (e.g., theories of intrinsic motivation) do not typically include notions of universal stages or tasks, but focus instead on Organismic assumptions about the nature of humans, specifically, that humans are innately active, curious, and interested, and inherently desire to explore, understand, and fit in with their social and physical environments. With the rise of radical contextualism and cultural relativism in psychology, theories of “universal” anything (e.g., psychological needs, stages, developmental tasks) have come increasingly under attack.

Some of the better-known members of the Contextualist family include Bronfenbrenner’s bio-ecological model and the lifespan approach, both of which arose in reaction to dominant meta-theories of their day (experimental child psychology and Piagetian psychology, respectively), with their almost exclusive focus on the child as a developing individual. The “contextualist” moniker reflects these perspectives’ insistence that development unfolds within and is shaped by higher-order multi-level ecological or contextual forces outside the individual, such as microsystem settings, and societal, cultural, and historical contexts.

Does the field of psychology have meta-theories?

During different historical periods, specific meta-theories dominated the field of psychology. For example, during the 1940s and 1950s, behaviorism held sway. In the 1960s, Piaget’s theories were introduced to the United States and captured the field’s attention. Some fierce theoretical and empirical battles were fought between behaviorists and Piagetians.

When a specific meta-theory governs the field, it becomes very difficult for researchers from opposing meta-theories to work—they have trouble getting funding, they have trouble getting their research findings published, and they are marginalized by other researchers. For example, when the area of motivation was dominated by behaviorists (who believed that all behavior was motivated by rewards and punishments), it was very difficult for researchers to study and publish research on intrinsic motivation.

What is the dominant meta-theory in the field today?

“Cognitivism” is a guiding meta-theory in the field of psychology today. “Cognitivism” is the assumption that all the causal factors that shape human behavior and development are inside the mind or belief system of the person. You can hear the assumptions in the theories of the field: self-efficacy, self-esteem, attributions, perceived social support, values, sense of purpose, goal orientations, internal working model, identity, and so on.

The paradigm that is currently taking over the field of psychology is neuroscience . That is, the brain is in charge of behavior, and neurobiology is destiny. Some branches of neuroscience are predominantly Maturational , as seen in discussions of the brain systems responsible for certain actions, predilections, and characteristics. Other branches are more Contextual , for example, research on neuroplasticity, which examines the way that social contexts and interactions shape the developing brain.

News flash : In the field of psychology outside developmental, most researchers assume that people don’t develop. In personality, social, cognitive, and industrial-organizational psychology, researchers largely examine individual differences as indicators of people’s permanent characteristics.

Who else has meta-theories?

Everyone has meta-theories about human nature and development: parents, teachers, nurses, social workers, doctors, business people, artists, politicians, and so on.

For example,

• doctors assume that weight loss is all about diet and exercise (nurture), so no one can do research on physiological differences in metabolism (nature).
• teachers have assumptions about whether students come with motivation (nature) or have to be motivated from the outside (nurture), and organize their classrooms accordingly.
• parents often argue about the nature of children’s development, whether it’s just the child’s personality (maturational), or the child is going through a normal stage (organismic), or if they are rewarding the wrong behavior (mechanistic).

What is the meta-theory that guides our class and this book?

Our class endorses a life-span perspective on human development, a contextualist perspective that fought its way through the dominant perspectives in child psychology (e.g., development ends at age 18), starting in the 1980s to become one of the dominant meta-theories governing the field of developmental science today. Note that your instructors chose your book, so their meta-theory is influencing the meta-theoretical filter through which you are learning about development.

What is the correct meta-theory?

There is no single correct definition of development or meta-theory. Really. Even the lifespan approach has its drawbacks.

However, as research accumulates, many theories derived from certain meta-theories have been found to be incomplete—so far researchers have not found any significant aspect of development that is caused only by nature or only by nurture. Therefore, most researchers currently say they favor interactionist metatheories, like contextualist or systems meta-theories. However, it is important to look carefully at researchers’ actual work, because sometimes they say that they have one meta-theory, but their work seems to be guided by assumptions from a different meta-theory.

Do I have a meta-theory about development?

Yes, you do. And you can figure out what it is. Although it’s not easy, you can discern your own assumptions about development—by thinking about which assumptions make the most sense to you. You can also see which kinds of theories you prefer and what kinds of recommendations you would make about how to structure development, like how people should parent, teach, or make policies. The hardest part about discovering your own meta-theory is realizing that it is made up of assumptions you have (based on your experiences and messages from society)—that aren’t necessarily true. Our meta-theories sure seem true to each of us!

How do I get rid of my meta-theory?

It’s not really possible to get rid of all of our assumptions. It is our goal to be aware of our own assumptions or meta-theories, to realize that they are not the truth but are our current working models of how the world operates and people develop. The most important thing is to be explicit about our assumptions and to be cognizant of how they are guiding our actions. It is a goal of this class to help students figure out their own assumptions and to help them become (or remain) open to alternative viewpoints.

Adapted from : Ellen Skinner, Glen Richardson, Jennifer Pitzer, and Cynthia Taylor. Portland State University. July 2011.

Historical Theories of Development

Preformationist View : Well into the 18th century, children were merely thought of as little adults. Preformationism , or the belief that a tiny, fully formed human is implanted in the sperm or egg at conception and then grows in size until birth, was the predominant early theory. Children were believed to possess all their sensory capabilities, emotions, and mental aptitude at birth, and as they developed these abilities unfolded on a predetermined schedule (Thomas, 1979). The environment was thought to play no role in determining development .

John Locke (1632-1704): Locke, a British philosopher, refuted the idea of innate knowledge and instead proposed that children are largely shaped by their social environments, especially their education as adults teach them important knowledge. He believed that through education a child learns socialization, or what is needed to be an appropriate member of society. Locke advocated thinking of a child’s mind as a tabula rasa or blank slate , and whatever comes into the child’s mind comes from the environment. Locke emphasized that the environment is especially powerful in the child’s early life because he considered the mind the most pliable then. Locke indicated that the environment exerts its effects through associations between thoughts and feelings, behavioral repetition, imitation, and rewards and punishments (Crain, 2005). Locke’s ideas laid the groundwork for the behavioral perspective and subsequent learning theories of Pavlov, Skinner and Bandura.

Jean-Jacques Rousseau (1712-1778): Like Locke, Rousseau also believed that children were not just little adults. However, he did not believe they were blank slates, but instead developed according to a natural plan which unfolded in different stages (Crain, 2005). He did not believe in teaching them the correct way to think, but believed children should be allowed to think by themselves according to their own ways and an inner, biological timetable. This focus on biological maturation resulted in Rousseau being considered the father of developmental psychology. Followers of Rousseau’s developmental perspective include Gesell, Montessori, and Piaget.

Arnold Gesell (1880-1961): Gesell spent 50 years at the Yale Clinic of Child Development, and with his colleagues he studied the neuromotor development of children. Gesell believed that the child’s development was activated by genes and he called this process maturation (Crain, 2005). Further, he believed that development unfolded in fixed sequences, and he opposed efforts to teach children ahead of schedule as he believed they will engage in behaviors when their nervous systems had sufficiently matured.

Sigmund Freud (1856-1939): Freud was a very influential figure in the area of development. Freud emphasized the importance of early childhood experiences in shaping our personality and behavior. In our natural state, we are biological beings and are driven primarily by instincts. During childhood, however, we begin to become social beings as we learn how to manage our instincts and transform them into socially acceptable behaviors. His assumptions were that personality formed during the first few years of life. The ways in which parents or other caregivers interacted with children were assumed to have a long-lasting impact on children’s emotional states. His beliefs formed the psychodynamic perspective and his theories of psychosexual development and psychopathology dominated the field of psychiatry until the growth of behaviorism in the 1950s.

However, Freud’s theory has been heavily criticized for several reasons. One is that it is very difficult to test scientifically (Crews, 1998). Freud suggested that much of what determines our actions were unknown to us, and as scientists we cannot measure these unconscious concepts. A second criticism is that Freud’s case studies were not validated and cannot be used as evidence for his theories. Many later theories, particularly behaviorism and humanism, came about as challenges to Freud’s views.

Contemporary Theories on Development

Erikson (1902-1994) and Psychosocial Theory: Now, let’s turn to a less controversial psychodynamic theorist, Erik Erikson. Erikson presents eight developmental stages that encompass the entire lifespan. For that reason, Erikson’s psychosocial theory forms the foundation for much of our discussion of psychosocial development.

Erikson (1950) proposed a model of lifespan development that provides a useful guideline for thinking about the changes we experience throughout life. Erikson broke with Freud’s emphasis on sexuality as the cornerstone of social-emotional development and instead suggested that social relationships fostered development. Erikson proposed that each period of life has a unique challenge or crisis that the person who reaches it must face, referred to as psychosocial crises . According to Erikson, successful development involves dealing with and resolving the goals and demands of each of these psychosocial crises in a positive way. These crises are usually called stages, although that is not the term Erikson used. If a person does not resolve a stage successfully, it may hinder their ability to deal with later stages. For example, the person who does not develop a sense of trust (Erikson’s first stage) may find it challenging as an adult to form a positive intimate relationship (Erikson’s sixth stage). Or an individual who does not develop a clear sense of purpose and identity (Erikson’s fifth stage) may become self-absorbed and stagnate rather than work toward the betterment of others (Erikson’s seventh stage).

However, most individuals are able to successfully complete the eight stages of his theory (See Table 1.3).

Table 1.3 Erikson's Psychosocial Stages

Erikson’s theory has been criticized for focusing so heavily on crises and assuming that the completion of one crisis is a prerequisite for the next crisis of development. His theory also focused on the social expectations that are found in certain cultures, but not in all. For instance, the idea that adolescence is a time of searching for identity might translate well in the middle-class culture of the United States, but not as well in cultures where the transition into adulthood coincides with puberty through rites of passage and where adult roles offer fewer choices.

Learning Theory: Also known as Behaviorism , is based on the premise that it is not possible to objectively study the mind, and therefore psychologists should limit their attention to the study of behavior itself. The most famous behaviorist was Burrhus Frederick (B. F.) Skinner (1904–1990), who expanded the principles of behaviorism and also brought them to the attention of the public at large. Skinner used the ideas of stimulus and response, along with the application of rewards or reinforcements, to train pigeons and other animals. In addition, he used the general principles of behaviorism to develop theories about how best to teach children and how to create societies that were peaceful and productive (Skinner, 1957, 1968, 1972).

The behaviorists made substantial contributions to psychology by identifying the principles of learning. Although the behaviorists were incorrect in their beliefs that it was not possible to measure thoughts and feelings, their ideas provided new insights that helped further our understanding regarding the nature-nurture debate as well as the question of free will. The ideas of behaviorism are fundamental to psychology and have been developed to help us better understand the role of prior experiences in a variety of areas of psychology.

Social Learning Theory , or learning by watching others , was developed by Albert Bandura (1977). His theory calls our attention to the ways in which many of our actions are not learned through conditioning, as suggested by Skinner . Young children frequently learn behaviors through imitation. Especially when children do not know what else to do, they learn by modeling or copying the behavior of others.

Bandura (1986) suggests that there is interplay between the environment and the individual. We are not just the product of our surroundings, rather we influence our surroundings. There is interplay between our personality and the way we interpret events and how they influence us. This concept is called reciprocal determinism . An example of this might be the interplay between parents and children. Parents not only influence their child’s environment, perhaps intentionally through the use of reinforcement, etc., but children influence parents as well. Parents may respond differently with their first child than with their fourth. Perhaps they try to be the perfect parents with their firstborn, but by the time their last child comes along they have very different expectations, both of themselves and their child. Our environment creates us and we create our environment.

Other social influences: TV or not TV? Bandura, Ross and Ross (1963) began a series of studies to look at the impact of television on the behavior of children. Bandura began by conducting an experiment in which he showed children a film of a woman hitting an inflatable clown or “bobo” doll. Then the children were allowed in the room, where they found the doll and during their play they began to hit it. The children also demonstrated novel ways of being aggressive toward the doll that were not demonstrated by those children who did not see the aggressive model. Bandura’s research raised concerns about the impact of violence on young children. Since then, considerable research has been conducted on the impact of violent media on children’s aggression including playing video games.

Cognitive Theory: The cognitive theories focus on how our mental processes or cognitions change over time . Three important theories are Jean Piaget’s, Lev Vygotsky’s, and Information-processing.

Jean Piaget (1896-1980) was one of the most influential cognitive theorists in development. He was inspired to explore children’s ability to think and reason by watching his own children’s development. He was one of the first to recognize and map out the ways in which children’s intelligence differs from that of adults (Piaget, 1929). He became interested in this area when he was asked to test the IQ of children and began to notice that there was a pattern in their wrong answers. He believed that children’s intellectual skills change over time and that maturation, rather than training, brings about that change. Children of differing ages interpret the world differently. Piaget theorized that children progressed through four stages of cognitive development (see Table 1.4).

Table 1.4 Piaget's Stages of Cognitive Development

Piaget has been criticized for overemphasizing the role that physical maturation plays in cognitive development and in underestimating the role that culture and experience plays. Looking across cultures reveals considerable variation in what children are able to do at various ages. Research has shown considerable overlap among the four stages and that development is more continuous.

Lev Vygotsky (1896-1934) was a Russian psychologist who wrote in the early 1900s, but whose work was not discovered by researchers in the United States until the 1960s and became more widely known in the 1980s (Crain, 2005). His sociocultural theory emphasizes the importance of culture and interaction in the development of cognitive abilities . Vygotsky differed with Piaget in that he believed that a person not only has a set of abilities, but also a set of potential abilities that can be realized if given the proper guidance from others. Vygotsky developed theories on teaching that have been adopted by educators today.

Information Processing is not the work of a single theorist, but based on the ideas and research of several cognitive scientists studying how individuals perceive, analyze, manipulate, use, and remember information . This approach assumes that humans gradually improve in their processing skills; that is, cognitive development is continuous rather than stage-like. The more complex mental skills of adults are built from the primitive abilities of children. We are born with the ability to notice stimuli, store, and retrieve information. Brain maturation enables advancements in our information processing system. At the same time, interactions with the environment also aid in our development of more effective strategies for processing information.

Urie Bronfenbrenner (1917-2005) developed the Ecological Systems Theory , which provides a framework for understanding and studying the many influences on human development (Bronfenbrenner, 1979). Bronfenbrenner recognized that human interaction is influenced by larger social forces and that an understanding of these forces is essential for understanding an individual. The individual is impacted by several systems including:

• Microsystem includes the individual’s setting and those who have direct, significant contact with the person, such as parents or siblings . The input of those is modified by the cognitive and biological state of the individual as well. These influence the person’s actions, which in turn influence systems operating on him or her.
• Mesosystem includes the larger organizational structures, such as school, the family, or religion. These institutions impact the microsystems just described. The philosophy of the school system, daily routine, assessment methods, and other characteristics can affect the child’s self-image, growth, sense of accomplishment, and schedule thereby impacting the child, physically, cognitively, and emotionally.
• Exosystem includes the larger contexts of community . A community’s values, history, and economy can impact the organizational structures it houses. Mesosystems both influence and are influenced by the exosystem.
• Macrosystem includes the cultural elements, such as global economic conditions, war, technological trends, values, philosophies, and a society’s responses to the global community.
• Chronosystem is the historical context in which these experiences occur. This relates to the different generational time periods previously discussed, such as the baby boomers and millennials.

In sum, a child’s experiences are shaped by larger forces, such as the family, schools, religion, culture, and time period. Bronfenbrenner’s model helps us understand all of the different environments that impact each one of us simultaneously. Despite its comprehensiveness, Bronfenbrenner’s ecological system’s theory is not easy to use. Taking into consideration all the different influences makes it difficult to research and determine the impact of all the different variables (Dixon, 2003). Consequently, psychologists have not fully adopted this approach, although they recognize the importance of the ecology of the individual. Figure 1.9 is a model of Bronfenbrenner’s Ecological Systems Theory.

Figure 1.9. Bronfenbrenner’s Ecological Systems Theory

Supplemental Materials

• This article discusses the importance of critical reflection on the underlying assumptions of developmental psychology as a science.

Teo, T. (1997). Developmental Psychology and the Relevance of a Critical Metatheoretical Reflection. Human Development, 40 (4), 195–210. https://doi.org/10.1159/000278723

Baltes, P. B. (1987). Theoretical propositions of life span developmental psychology: On the dynamics between growth and decline. Developmental Psychology, 23, 611-626.

Baltes, P. B., Lindenberger, U., & Staudinger, U. M. (2006). Life span theory in developmental psychology. In W. Damon, & R. M. Lerner (Eds.), Handbook of child psychology , 6th edition (pp. 569-664). Hoboken, NJ: John Wiley & Sons.

Bandura, A. (1977). Social learning theory . New York: General Learning Press.

Bandura, A. (1986). Social foundations of thought and action: A social-cognitive theory . Upper Saddle River, NJ: Prentice Hall.

Bandura, A, Ross, D. &. Ross S. (1963). Imitation of film-mediated aggressive models. Journal of Abnormal and Social Psychology, 66 , 3-11.

Bronfenbrenner, U. (1979). The ecology of human development: Experiments by nature and design . Cambridge, MA: Harvard University Press.

Crain, W. (2005). Theories of development concepts and applications (5th ed.). New Jersey: Pearson.

Crews, F. C. (1998). Unauthorized Freud: Doubters confront a legend . New York, NY: Viking Press.

Dixon, W. E. (2003). Twenty studies that revolutionized child psy chology. Upper Saddle River, NJ: Prentice Hall.

Erikson, E. H. (1950). Childhood and society . New York: Norton.

Guinness World Records. (2016). Oldest person (ever). Retrieved from http://www.guinnessworldrecords.com/search?term=oldest+person+%28ever%29

Neugarten, B. L. (1979). Policy for the 1980s: Age or need entitlement? In J. P. Hubbard (Ed.), Aging: Agenda for the eighties, a national journal issues book (pp. 48-52). Washington, DC: Government Research Corporation.

Neugarten, D. A. (Ed.) (1996). The meanings of age . Chicago, IL: The University of Chicago Press.

Piaget, J. (1929). The child’s conception of the world . NY: Harcourt, Brace Jovanovich.

Smithsonian National Zoo. (2016). Retrieved from http://nationalzoo.si.edu/

Skinner, B. (1957). Verbal behavior . Acton, MA: Copley.

Skinner, B. (1968). The technology of teaching . New York, NY: Appleton-Century-Crofts.

Skinner, B. (1972). Beyond freedom and dignity . New York, NY: Vintage Books.

Thomas, R. M. (1979). Comparing theories of child development . Santa Barbara, CA: Wadsworth.

United States Census Bureau. (2016). Povert y. Retrieved from http://www.census.gov/topics/income-poverty/poverty/about/glossary.html

Vogt, W.P., & Johnson, R.B. (2016). The SAGE dictionary of statistics and methodology . Los Angeles, CA: Sage

Webb, S. J., Dawson, G., Bernier, R., & Panagiotides, H. (2006). ERP evidence of atypical face processing in young children with autism. Journal of Autism and Developmental Disorders, 36 , 884-890. doi: 10.1007/s10803-006-0126-x

Weitz, R. (2007). The sociology of health, illness, and health care: A critical approach, (4th ed.). Belmont, CA: Thomson.

OER Attribution: “Lifespan Development: A Psychological Perspective, Second Edition” by Martha Lally and Suzanne Valentine-French is licensed under a CC-BY-NC-SA-3.0

Additional written material (Meta-theories of Human Development) by Ellen Skinner, Glen Richardson, Jennifer Pitzer, and Cynthia Taylor, Portland State University is licensed under a CC BY-NC-SA 4.0 .

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Human Development, Essay Example

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In the works of different researchers, it is claimed that social behavior is not something naturally acquired as a result of aging. Indeed, children’s inadequate behavior usually results from the lack of social and communication skills. Hemmeter, Ostorsky and Fox in the article “Social and Emotional Foundations for Early Learning: A Conceptual Model for Intervention” emphasized that “creating a caring, socially rich, cooperative, and responsive environment requires an intentional and systematic approach” (2006). The development of social skills and personal capabilities requires appropriate education, gentle guidance of the adults, responsible parenting and good school environment.

There are key social skills that are essential for children when they enter school: an ability to develop positive relationships with peers and adults, an ability to communicate emotions effectively and adequately, an ability to listen (Hemmeter, Ostorsky & Fox, 2006), nonaggressive behavior. Also, children need compassion, ability to work in the team, and, later, an ability to stay calm under pressure. Social skills are skills and behaviors that facilitate interaction and help to achieve social status. The ability to communicate emotions is essential for open and easy communication with peers, without hypocrisy or inadequacy that may lead to misunderstanding or absence of friends. The ability to listen underlies understanding and not interrupting the speaker; inability to listen may make a child a bad company and unwelcome in conversations. The ability to show compassion is vital for children, as it allows understanding of someone’s feelings and sharing them; children without it may be perceived as cruel or aggressive, and thus they may have problems with peers. Working in the team is an indivisible part of every child’s life (games, competitions, classroom activities). Inability to collaborate and respect friends may lead to ostracism or loneliness.

A chief influence in the lives of teenagers and children are their parents, claims Sara in her article devoted to parent-children relationships (2002). It is their family that plays a key role in the establishment of the moral beliefs and social behaviors.

In order to develop social skills such as ability to listen and ability to communicate, parents need to respect their child and not treat him or her as a silly and irresponsible creature. Sara provides the next example: when a child does something wrong (stealing, lying), parents should deal with it by means of conversation, not a lecture (2002). Young children depend on their relationships with parents or caregivers “to teach them about themselves and the world they live in” (Aviles, Anderson & Davila, 2006); these relationships shape children’s understanding of their behaviors by the parents/caregivers responses. What is normal for the family members is normal for the child.  So, showing respect in the family enhances the ability to listen to what adults say and the ability communicate adequately, i.e. as it is normal for certain society.

A human development psychologist Erick Erickson also emphasized the parents influence during first years of the child’s life. By the age of five, the child develops trust or mistrust to the world and society, autonomy or doubtfulness about one’s capabilities, and initiative to play (explore, fantasize…) or guilt (Elkind, 1970). Parents must create caring and responsive family environment in order to promote easy communication with children and other adults. The child who was cared of, listened to and played with will be socially active and open. Responsive family provides the child with friendly and caring communication with parents; this communication improves the child’s ability to communicate as well as adequate responses to child’s communication. Family communication enhances the child’s ability to communicate by creating behavioral patterns and promoting initiative.

In contrast to caring and responsive family atmosphere, the family environment may inhibit children’s social development. If the child experiences aggression, temperamental difficulties, noncompliance, and language difficulties, it indicates problems in the family. Problems like violence and absence of sympathy may inhibit social skills. Violence in the family inhibits communication skills and compassion. Due to violence children may distrust adults and other people, and thus be unable to develop positive social relationship. Also, witnessing violence leads to low self-esteem and inhibit the ability to stay calm under the pressure. Absence of sympathy and care in the family does not provide development of compassion. As social skills are behavioral patterns, compassion must also be a pattern. In order to develop this pattern, caring and responsive approach is needed, thus lack of family care inhibits compassion. To summarize this paragraph, it is essential to point out that negative family environment influences children’s behavior greatly – much more than classroom environment, for example.

At a certain age, a child enters school where teachers can influence his or her social development. The main controlling and directing school environment force is the teacher, his competent work and monitoring of the class. When taught routines and expectations by teacher’s directions and feedback, children learn ethics; this promotes an ability to develop positive relationship with peers and adults in certain society. When children are taught to manage themselves, they learn to stay calm under the pressure. Of course, it is essential for the teacher to make a classroom atmosphere creative and comfortable in order to promote co-working and teamwork. Friendly and creative atmosphere may involve competitions or creative activities with motivating incentives, teaching to be a good loser; such things contribute to the ability to work in the team. It must be comfortable for children to express themselves freely.

In order to foster compassion skills, teacher must provide an example by expressing compassion himself and showing that this is normal. Good example can shape a proper perception of expressions of compassion and thus contribute to this skill. Also, classroom activities include listening to teacher’s instructions or explanations; listening to instructions must be silent and attentive, so children learn to listen first and ask question after. Friendly and creative environment may include active communication or argument, and this provides children with perfect example of communication model, when one person listens to other, and vice versa. Thus, general communication skills and listening skills are improved.

Obviously, negative classroom environment may inhibit social and academic success of the children. Teacher’s indifference may cause a feeling that the child is insignificant, his problems are ridiculous, he is left to his own devices, and adults are not interested in communication with him. It inhibits his ability to develop positive relationship with peers and adults. Inability to find a common language with students or racial or sexual harassment may inhibit the same social skill and compassion as well, as aggressiveness will be deemed normal.

Sara provides an idea that illustrates the central idea of this paper. “If you want your kids to grow up to be kind, compassionate and caring, you’re going to have to lead the way” (Sara, 2002). It means that all adults who can influence the child’s life should improve his or her social development in some way or other.

It does not matter, who you are – a parent or a teacher. When you have children that depend on you, you must remember that whether they will trust you or avoid your company, or whether they will be successful in communication with peers or ostracized, depends on social education that must start in the early childhood and last until late adolescence.

Aviles, A., Anderson, T., & Davila, E. (2006). Child and Adolescent Social-Emotional Development Within the Context of School. Child & Adolescent Mental Health , 11(1), 32-39. doi:10.1111/j.1475-3588.2005.00365.x.

Elkind, D. (1970, April 5). Erik Erikson’s Eight Ages of Man. The New York Times  Magazine . Reprinted by permission from The New York Times Company. Retrieved September 16, 2010 from http://www.ceed.pdx.edu/ectc_sscbt/pdfs/EriksonsEightAgesofMan.pdf

Hemmeter, M., Ostrosky, M., & Fox, L. (2006). Social and Emotional Foundations for Early Learning: A Conceptual Model for Intervention. School Psychology Review , 35(4), 583. Retrieved from MasterFILE Premier database.

Sara, S. (n.d). (2002) Parents can pass values along to children, experts say. Contra Costa  Times (Walnut Creek, CA) , Retrieved September from Newspaper Source database.

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Essay on Theories of Human Development

Human development invites the creations of various theories and perspectives that help understand people, their development, growth, and the physical, cognitive and psychosocial changes they experience throughout their lives. Human development is based on the principle that most things in life can only be achieved through age and experience, resulting in maturity and character development. Through scientific proof, various psychologists and scientists have developed theoretical frameworks that explain and predict individual behaviors and development. There are three significant approaches to human development; the psychosexual, psychosocial, and ecological approach

Freud’s psychosexual theory states that children’s development occurs in a series of stages related to erogenous zones. Freud suggested that parents play a critical role in managing their children’s sexual and aggressive drives during early childhood, fostering their proper development. This theory posits that human personality consists of three interworking components: the id, the ego, and the superego, which unify as children go through the five stages of psychosexual development. The id focuses on desires and impulses. The ego focuses on reasoning while the superego helps to apply morals and values from society. According to Jeffrey & Lene (2019), Freud named five stages of his theory and emphasized that the early stages were vital, and most of later development were determined by the age of 6.

Erikson’s psychosocial theory states that human beings have to resolve various crises to become successful and complete. Erikson proposed eight stages of human development. Each stage has two conflicting ideas that must be resolved for children to develop into successful and active members in their societies (Maryville University, n.d). The conflicting ideas have two possible resolutions, a healthy and an unhealthy one. Failure to resolve the conflicts will result in the feeling of inadequacy and incompleteness (Barbara & Newman, 2015). In addition, Erikson posits that significant changes occur throughout a person’s life span, based on psychological and social aspects.

Bronfenbrenner’s ecological theory states that a child develops within a complex system of relationships. They include the microsystem characterized by parent-child relationships; the mesosystem comprises the extended family, school, neighborhood; and the ecosystem, which comprises the general society and culture. Additionally, the macrosystem is characterized by socioeconomic status, poverty, ethnicity, and the chronosystem is characterized by shaping environmental aspects with life changes and sociohistorical circumstances. This theory is significant because it incorporates historical aspects as important influencers on human development (Jeffrey & Lene, 2019). Further, Bronfenbrenner posits that children and adolescents play pivotal roles in their development, not entirely dependent on external influences.

Erikson modified Freud’s psychosexual theory into an eight-stage theory of development. It means that Erikson’s theory is an advanced model of Freud’s theory. Freud’s theory is psychosexual, related to the psychological and sexuality aspects, while Erikson’s theory is psychosocial, which relates to the psychological and social aspects. Bronfenbrenner’s theory is ecological as it relates to environmental aspects. Further, Freud’s theory focuses on conscience, where a person learns the rights and wrongs through a person, a being, or a voice that gives moral lessons and advice. On the other hand,

Erikson’s theory focuses on autonomy, where people learn how to be independent and self-sufficient. Additionally, Freud’s theory suggests that the early childhood stages are the most essential in human development. At the same time, Erikson believes that every stage in a person’s life is vital in molding their life. Compared to Erikson and Freud’s theories, Bronfenbrenner’s theory does not focus on life stages. Instead, he emphasizes numerous influences that model humans in the social environment (Jeffrey & Lene, 2019). It is also important to note that the three theories play significant roles today in the study and planning of children and adolescent’s development.

In conclusion, human development is a broad, complex process with different scientists trying to develop the most appropriate and exclusive explanation. Human development theories provide various ideas developed from scientific proof to predict and learn individual developments and behaviors. Most people experience the stages highlighted by Freud and Erikson, while Bronfenbrenner’s environmental aspect relates to most people’s lives. Regardless of the difference in their explanations, the three theories explicitly outline human development as it is. Human beings go through several stages in their life, and every stage is significant in its way. Further, early childhood experiences play a significant role in shaping our adult life, and the people and things we engage with are significant determinants of our development.

Barbara, N. M., & Newman, P. R. (2015)  Theories of human development  Psychology Press.  https://doi.org/10.4324/9781315871240

Jeffrey Jensen Arnett & Lene Arnett Jensen, (2019) Human Development: A Cultural Approach Pearson ISBN.13: 978-0-134-64134-8

Maryville University (n.d) What is Human Development and Why is it Important?  Stages of Human Development: What It Is & Why It’s Important (maryville.edu)

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Essay on Human Development

Students are often asked to write an essay on Human Development in their schools and colleges. And if you’re also looking for the same, we have created 100-word, 250-word, and 500-word essays on the topic.

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100 Words Essay on Human Development

The concept of human development.

Human development is a process of enlarging people’s freedoms and improving their well-being. It involves increasing the choices and opportunities for all people.

Dimensions of Human Development

There are three main dimensions: health, education, and living standards. Health is measured by life expectancy, education by years of schooling, and living standards by income.

The Importance of Human Development

Human development is crucial. It helps societies to progress, reduces poverty, and promotes equality. It’s a way to help everyone live a productive and fulfilling life.

Challenges in Human Development

Despite its importance, many challenges exist, like inequality, environmental degradation, and political instability. Overcoming these challenges is vital for sustainable human development.

250 Words Essay on Human Development

Introduction.

Human development, a multidimensional concept, is a process of enlarging people’s freedoms and improving their well-being. It encompasses the enhancement of both individual potential and societal growth, focusing on aspects such as education, health, standard of living, and participation in societal activities.

Theoretical Framework

The Human Development Index (HDI), introduced by the United Nations Development Programme, quantifies human development. It emphasizes three fundamental dimensions: knowledge, longevity, and decent standard of living. However, human development is not merely a function of these quantifiable elements; it also involves intangible aspects such as freedom, dignity, and autonomy.

Role of Education

Education plays a central role in human development. It equips individuals with knowledge and skills, empowering them to contribute to societal progress. Education fosters creativity and innovation, driving technological advancements and economic growth.

Health and Living Standards

Health is another crucial component. A healthy population is more productive, contributing to economic growth and societal development. Additionally, a decent standard of living, characterized by access to basic needs and services, is vital for human development.

Societal Participation

Active societal participation promotes inclusivity and equality, essential elements of human development. It enables individuals to contribute to and benefit from societal progress, fostering a sense of belonging and mutual respect.

In conclusion, human development is a comprehensive and nuanced concept. It encompasses not only economic growth but also aspects such as education, health, living standards, and societal participation. It is about creating an environment where individuals can develop their full potential and lead productive, creative lives in accord with their needs and interests.

500 Words Essay on Human Development

Human development is an intricate interplay of biological, psychological, and sociocultural processes that begin at conception and continue throughout the lifespan. It encompasses the growth and maturation of the human being, including physical, cognitive, emotional, and social changes.

The Biological Perspective

From the biological standpoint, human development begins with genetics. Our genetic makeup, coupled with environmental influences, guides our physical growth and maturation. This includes the development of the brain, motor skills, and health. Understanding the biological aspects of human development allows us to grasp why we are the way we are, and how our physical attributes and health conditions may influence our life experiences.

The Psychological Perspective

The psychological perspective focuses on the development of mental processes, behaviors, and emotions. Cognitive development theory, proposed by Jean Piaget, suggests that individuals pass through different stages of cognitive growth as they mature. This theory underscores the importance of experiences and interactions in shaping our cognitive abilities, personality, and emotional well-being.

The Sociocultural Perspective

The sociocultural perspective emphasizes the impact of social and cultural factors on human development. According to Lev Vygotsky’s sociocultural theory, our cognitive development is heavily influenced by our social interactions and cultural context. This perspective highlights the importance of understanding the cultural and social norms, values, and expectations that shape our behaviors and identities.

Interplay of Factors

It is important to recognize that these perspectives do not exist in isolation. They interact in complex ways to shape human development. For instance, our biological makeup may influence our cognitive abilities, which in turn can be shaped by our sociocultural environment. Similarly, our sociocultural context may impact our physical health through factors such as diet, lifestyle, and access to healthcare.

Human Development Index

To measure human development, the United Nations uses the Human Development Index (HDI). The HDI is a summary measure of average achievement in key dimensions of human development: a long and healthy life, being knowledgeable, and having a decent standard of living. It is a standard means of measuring well-being, especially child welfare.

In conclusion, human development is a multifaceted process influenced by biological, psychological, and sociocultural factors. It is a continuous journey that shapes our physical attributes, cognitive abilities, emotional well-being, and social interactions. Understanding these factors and their interplay can provide valuable insights into human behavior and well-being, and guide efforts to promote healthy development and improve quality of life. The HDI, while not perfect, gives us a tool to measure and compare human development across different contexts.

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• Published: 29 July 2021

The evolution of our understanding of human development over the last 10 years

• Ali H. Brivanlou   ORCID: orcid.org/0000-0002-1761-280X 1 &
• Norbert Gleicher   ORCID: orcid.org/0000-0002-0202-4167 2 , 3 , 4  

Nature Communications volume  12 , Article number:  4615 ( 2021 ) Cite this article

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• Developmental biology
• Embryogenesis

As it fulfills an irresistible need to understand our own origins, research on human development occupies a unique niche in scientific and medical research. In this Comment, we explore the progress in our understanding of human development over the past 10 years. The focus is on basic research, clinical applications, and ethical considerations.

What basic research has taught us about human development

Over the last decade, progress in understanding our own development was mostly driven by the emergence and combination of remarkable new technologies. New molecular biology tools such as single-cell RNA-sequencing (sc-RNA-seq) unveiled the earliest genetic signature of the three cell lineages of the human blastocyst and allowed for the discovery of human-specific signatures 1 , 2 , 3 . CRISPR/Cas9 genome editing has offered further access to in vitro functional studies in human blastocysts 4 . However, as we discuss below, an ethical line was crossed when a group claimed that genetically modified human embryos had been transferred, leading to births 5 when neither public opinion nor a consensus within the scientific community had been reached regarding whether crossing the germline in in vitro fertilization (IVF) was safe and ethically acceptable.

On the embryology side, the development of an in vitro attachment platform for human blastocysts offered a first glance into post-implantation events up to 12 days 1 , 3 , 5 , 6 . This paved the way for several important discoveries, including the observation that the human embryo can self-organize to generate embryonic and extraembryonic germ layers, yolk sac, and amniotic cavities in the absence of maternal influences 5 , 6 ; and the presence of a transient embryonic tissue of trophectodermal lineage, adjacent to the yolk sac, therefore named, yolk-sac trophectoderm ( ysTE ) 5 . The presence of these seemingly human-specific populations was independently confirmed by sc-RNA-seq 1 .

The marriage of stem cell biology with bioengineering gave birth to the field of synthetic embryology 7 , 8 , 9 , 10 , 11 , 12 , 13 . This technology uses human embryonic stem cells (hESCs) cultured on geometrically confined micropatterned substrates to generate 2D in vitro models of human conceptuses, such as models of the gastrula ( gastruloids ) 7 , 8 , 9 , 10 , 11 , 12 , 13 , or parts of the embryo, such as cerebroids and neuruloids 14 . Thousands of nearly identical self-organizing human embryonic structures allow for standardization and reproducibility, which cannot be achieved in standard organoid structures 15 . Cells within these structures can be tracked and quantified in real time with sub-cellular resolution, using sophisticated quantification code, including artificial intelligence 14 .

Human gastruloids induce formation of the primitive streak and have enabled the deciphering of the molecular network underlying gastrulation—the most crucial moment of our lives 7 , 8 , 9 , 10 , 11 , 12 , 13 . 3D models of human epiblasts can spontaneously break axial symmetry, thus providing an assay for the elucidation of molecular events underlying the emergence of antero–posterior polarity 11 , 16 . A highly homogenous population of self-organizing 3D models of amniotic ectoderm-like cells can be obtained by combining microfluidic and microculture approaches 17 .

Finally, the development of interspecies chimeras provided the most stringent in vivo validation of human embryo models 9 , 10 , 18 . Unimaginable in human models, inter-species chimeras have become the next best choice to test whether hESC behavior in self-organizing gastruloids , as observed on microchips, would also occur in an embryonic environment 10 , 18 , 19 . Human/bird chimeras generated from transplanting human gastruloids into early chick embryos in ovo unexpectedly proved more efficient than previous methods 9 , 19 . They allowed for the observation of an entire self-organizing embryonic axis in bird eggs 9 . As birds are closer to dinosaurs than to humans, this high rate of success with these chimeras further suggested that these early patterning events must be highly conserved.

Translational clinical applications that arose from basic research

The past 10 years bore witness to significant clinical progress in reproductive medicine, often translated from basic research. Successful human uterus transplantation and the subsequent birth of healthy offspring was, for example, only achieved after years of meticulous laboratory work in animals 10 . Significant improvements in cryopreservation technology for human eggs and ovarian tissue were also preceded by research in model systems 10 , 20 . Practical clinical applications have been developed for women in need of cancer treatment that are toxic to ovaries. In these cases, oocytes and/or ovarian tissue can be cryopreserved for later use in fertility treatments once the patient is cured of her cancer 21 . This ever-evolving technology has already proven to result in live births, and has also become an integral part of routine infertility treatments with IVF, giving rise to the brand-new concept of fertility extension through egg-freezing.

Diagnostic technologies to assess retrieved eggs and preimplantation-stage embryos in the IVF process have been disappointing. For example, tracking extended embryo culture to blastocyst-stage with time-lapse imaging failed to improve embryo selection 22 . That chromosomal-abnormal embryos increase with maternal (but not paternal) age has been interpreted to mean that chromosomal abnormalities were a principal cause for lower implantation chances and higher miscarriage risks among older women. This assumption led to the rapidly growing utilization of chromosomal testing of human embryos prior to embryo transfer in a procedure recently renamed preimplantation genetic testing for aneuploidy (PGT-A) 23 . The hypothesis behind PGT-A is to exclude chromosomal-abnormal embryos from the transfer, thereby improving implantation potentials of remaining euploid embryos.

Here too, clinical evidence was unable to confirm the hypothesis 24 . Moreover, basic research demonstrated a self-correction mechanism in mouse 25 and human embryos 26 , 27 , 28 , 29 that arose during embryogenesis that was cell lineage-specific to the embryonic cell lineage. In contrast, PGT-A biopsies are obtained from the extraembryonic-derived trophectoderm, rendering any diagnostic procedure at the blastocyst stage ineffective. In addition, mathematical modeling demonstrated that results from a single trophectoderm biopsy could not be extrapolated to the whole embryo 30 . Transfer of PGT-A “chromosomal-abnormal diagnosed embryos” has resulted in the births of over 400 chromosomal-normal offspring 20 , 21 .

In recent years, increasing attention has also been given to the quickly evolving understanding of how interdependent lifestyle and human fertility are 31 , 32 , 33 , including the influence of diet on the microbiome, as in many other areas of medicine.

The ethical significance of understanding human development

Whether in clinical medicine or in the research laboratory, human embryology has remained an ethical minefield, strongly influenced by socio-political and religious considerations. At the core of the controversy resides the special moral value of the human embryo, a subject that has come to the forefront again with the ascent of human embryonic stem cell research 34 . There is, however, little consensus as to how to answer a previously raised question: “ what is an embryo ?” 35 . The term pre-embryo, first introduced in 1986, was defined as the interval up to the appearance of the primitive streak, which marks biological individuation at ~14 days post-fertilization. This definition designated the period beyond 14 days as the time when a pre-embryo attains special moral status 36 , 37 . Paradoxically, the term pre-embryo has been replaced by the indiscriminate use of the term embryo, whether at preimplantation cleavage or blastocyst-stages or post-implantation before day 14. It was suggested that the distinction was important for ethical, moral, and biological relevance. The principal reason is simple: Until a pre-embryo becomes an embryo, there is no way of knowing whether implantation has taken place, whether a pregnancy is developing, whether there is a single pregnancy or twinning, or whether fertilization ended up in a benign (hydatidiform mole) or even in a malignant tumor (choriocarcinoma) 35 . Assigning advanced moral value to embryos at those early stages is, therefore, difficult to defend.

The past 10 years have witnessed innumerous ethical debates related to this subject, each with its own social, historical, and religious justifications, reflecting cultural diversities in human populations. Most are triggered by scientific breakthroughs. We summarize here the major ethical challenges preoccupying reproductive research and clinical practice.

We have already briefly referred to CRISPR/Cas9 genome editing. While the use of sc-RNA-seq to identify the molecular blueprint of human development has not elicited significant controversy, CRISPR/Cas9 genome editing of human embryos has been a topic of intense discussions and is currently permissible only in vitro 38 . An alleged attempt in China of implanting human genome-edited embryos into the uterus supposedly led to two births (one a twin birth). Though widely discussed in the media, neither attempt was published in the medical literature, and therefore cannot be verified 5 , 38 .

The ethical debates surrounding the 14-day rule, quiescent since the early IVF days, experienced a rebirth that was prompted by in vitro human embryo attachment studies and the emergence of synthetic human embryos. Within this context, we note that self-organizing embryo models are nothing more than cells in culture and are certainly not embryos. Regardless of scientific merits, in the U.S., the National Institutes of Health (NIH) currently prohibits the use of public funds for the study of synthetic embryos “for ethical reasons”. After being under an NIH moratorium for more than a year, research on chimeras is now, however, again permitted, though human/non-human primate chimeras remain prohibited.

These ongoing ethical debates mostly also mirror those surrounding the lack of U.S. federal funding for clinical IVF and related research, as well as hESCs-derived model embryos. In this context, the American Society for Reproductive Medicine (ASRM)’s Ethics in Embryo Research Task Force recently made an important statement: “ Scientific research using human embryos advances human health and provides vital insights into reproduction and disease ” 39 .

Provided certain guidelines and safeguards are followed, research with already existing embryos or embryos specifically produced for research should be ethically acceptable as a means of obtaining new knowledge that may benefit human health. ASRM also pointed out that scientists and society must understand which research questions necessitate the use of human embryos.

It is gratifying to acknowledge the history and vitality of ongoing debates, especially since they increasingly mimic decision-making processes in the medical field. These debates are meant to be based on cost-benefit and/or risk-benefit assessments. These debates will, unquestionably, continue and, indeed, considering that every intervention has consequences, must be decided based on careful considerations, including all relevant stakeholders and all parts of society.

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Acknowledgements

We like to thank Min Yang, Jean Marx Santel, Adam Souza, and Amir Brivanlou, for data gathering and critical reading of the manuscript, and constructive criticism.

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A.H.B. and N.G. are co-founders of OvaNova Inc. A.H.B. is a co-founder of Rumi Scientific Inc.

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Brivanlou, A.H., Gleicher, N. The evolution of our understanding of human development over the last 10 years. Nat Commun 12 , 4615 (2021). https://doi.org/10.1038/s41467-021-24793-3

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Understanding Developmental Psychology

Kendra Cherry, MS, is a psychosocial rehabilitation specialist, psychology educator, and author of the "Everything Psychology Book."

Daniel B. Block, MD, is an award-winning, board-certified psychiatrist who operates a private practice in Pennsylvania.

• Seeking Treatment

Frequently Asked Questions

Change is inevitable. As humans, we constantly grow throughout our lifespans, from conception to death. The field of developmental psychology explores the behavioral, emotional, physical, and cognitive changes that happen as people age.

Psychologists strive to understand and explain how and why people change throughout life. While many of these changes are normal and expected, they can still pose challenges that people sometimes need extra assistance to manage.

The principles of normative development help professionals spot potential problems and provide early intervention for better outcomes. Developmental psychologists can work with people of all ages to address roadblocks and support growth, although some choose to specialize in a specific age group such as childhood, adulthood, or old age.

What Is Developmental Psychology?

Developmental psychology is the branch of psychology that focuses on how people grow and change over the course of a lifetime.

Those who specialize in this field are not just concerned with the physical changes that occur as people grow; they also look at the social, emotional, and cognitive development that occurs throughout life.

Some of the many issues developmental psychologists assist with include:

• Cognitive development during childhood and throughout life
• Developmental challenges and learning disabilities
• Emotional development
• Language acquisition
• Moral reasoning
• Motor skill development
• Personality development
• Self-awareness and self-concept
• Social and cultural influences on child development

These professionals spend a great deal of time investigating and observing how these processes occur under normal circumstances, but they are also interested in learning about things that can disrupt developmental processes.

By better understanding how and why people change and grow, developmental psychologists help people live up to their full potential. Understanding the course of normal human development and recognizing potential problems early on can prevent difficulties with depression, low self-esteem, frustration, and low achievement in school.

Developmental Psychology Theories

Developmental psychologists often utilize a number of theories to think about different aspects of human development. For example, a psychologist assessing intellectual development in a child might consider Piaget's theory of cognitive development , which outlined the key stages that children go through as they learn.

A psychologist working with a child might also want to consider how the child's relationships with caregivers influences his or her behaviors, and so turn to Bowlby's theory of attachment .

Psychologists are also interested in looking at how social relationships influence the development of both children and adults. Erikson's theory of psychosocial development and Vygotsky's theory of sociocultural development are two popular theoretical frameworks that address the social influences on the developmental process.

Each approach tends to stress different aspects of development such as mental, social, or parental influences on how children grow and progress .

When to See a Developmental Psychologist

While development tends to follow a fairly predictable pattern, there are times when things might go off course. Parents often focus on what are known as developmental milestones, which represent abilities that most children tend to display by a certain point in development. These typically focus on one of four different areas:

• Physical milestones
• Cognitive milestones
• Social/emotional milestones
• Communication milestones

For example, walking is one physical milestone that most children achieve sometime between the ages of 9 and 15 months. If a child is not walking or attempting to walk by 16 to 18 months, parents might consider consulting with their family physician to determine if a developmental issue might be present.

While all children develop at different rates, when a child fails to meet certain milestones by a certain age, there may be cause for concern.

By being aware of these milestones, parents can seek assistance, and healthcare professionals can offer interventions that can help kids overcome developmental delays.

These professionals often evaluate children to determine if a developmental delay might be present, or they might work with elderly patients who are facing health concerns associated with old age such as cognitive declines, physical struggles, emotional difficulties, or degenerative brain disorders.

Developmental psychologists can provide support to individuals at all points of life who may be facing developmental issues or problems related to aging.

Developmental Psychology Stages

As you might imagine, developmental psychologists often break down development according to various phases of life. Each of these periods of development represents a time when different milestones are typically achieved.

People may face particular challenges at each point, and developmental psychologists can often help people who might be struggling with problems to get back on track.

Prenatal Development

The prenatal period is of interest to developmental psychologists who seek to understand how the earliest influences on development can impact later growth during childhood. Psychologists may look at how primary reflexes emerge before birth, how fetuses respond to stimuli in the womb, and the sensations and perceptions that fetuses are capable of detecting prior to birth.

Developmental psychologists may also look at potential problems such as Down syndrome, maternal drug use, and inherited diseases that might have an impact on the course of future development.

Early Childhood Development

The period from infancy through early childhood is a time of remarkable growth and change. Developmental psychologists look at things such as the physical, cognitive, and emotional growth that takes place during this critical period of development.

In addition to providing interventions for potential developmental problems at this point, psychologists are also focused on helping kids achieve their full potential . Parents and healthcare experts are often on the lookout to ensure that kids are growing properly, receiving adequate nutrition, and achieving cognitive milestones appropriate for their age.

Middle Childhood Development

This period of development is marked by both physical maturation and the increased importance of social influences as children make their way through elementary school.

Kids begin to make their mark on the world as they form friendships, gain competency through schoolwork, and continue to build their unique sense of self. Parents may seek the assistance of a developmental psychologist to help kids deal with potential problems that might arise at this age including social, emotional, and mental health issues.

Adolescent Development

The teenage years are often the subject of considerable interest as children experience the psychological turmoil and transition that often accompanies this period of development. Psychologists such as Erik Erikson were especially interested in looking at how navigating this period leads to identity formation .

At this age, kids often test limits and explore new identities as they explore the question of who they are and who they want to be. Developmental psychologists can help support teens as they deal with some of the challenging issues unique to the adolescent period including puberty, emotional turmoil, and social pressure.

Early Adult Development

This period of life is often marked by forming and maintaining relationships. Critical milestones during early adulthood may include forming bonds, intimacy, close friendships, and starting a family.

Those who can build and sustain such relationships tend to experience connectedness and social support while those who struggle with such relationships may be left feeling alienated and lonely .

People facing such issues might seek the assistance of a developmental psychologist in order to build healthier relationships and combat emotional difficulties.

Middle Adult Development

This stage of life tends to center on developing a sense of purpose and contributing to society. Erikson described this as the conflict between generativity and stagnation .

Those who engage in the world, contribute things that will outlast them, and leave a mark on the next generation emerge with a sense of purpose. Activities such as careers, families, group memberships, and community involvement are all things that can contribute to this feeling of generativity.

Older Adult Development

The senior years are often viewed as a period of poor health, yet many older adults are capable of remaining active and busy well into their 80s and 90s. Increased health concerns mark this period of development, and some individuals may experience mental declines related to dementia.

Theorist Erik Erikson also viewed the elder years as a time of reflection back on life . Those who are able to look back and see a life well-lived emerge with a sense of wisdom and readiness to face the end of their lives, while those who look back with regret may be left with feelings of bitterness and despair.

Developmental psychologists may work with elderly patients to help them cope with issues related to the aging process.

Diagnosing Developmental Issues

To determine if a developmental problem is present, a psychologist or other highly trained professional may administer either a developmental screening or evaluation.

For children, such an evaluation typically involves interviews with parents and other caregivers to learn about behaviors they may have observed, a review of a child's medical history, and standardized testing to measure functioning in terms of communication, social/emotional skills, physical/motor development, and cognitive skills.

If a problem is found to be present, the patient may then be referred to a specialist such as a speech-language pathologist, physical therapist, or occupational therapist.

A Word From Verywell

Receiving a diagnosis of a developmental issue can often feel both confusing and frightening, particularly when it is your child who is affected. Once you or your loved one has received a diagnosis of a developmental issue, spend some time learning as much as you can about the diagnosis and available treatments.

Prepare a list of questions and concerns you may have and discuss these issues with your doctor, developmental psychologist, and other healthcare professionals who may be part of the treatment team. By taking an active role in the process, you will feel better informed and equipped to tackle the next steps in the treatment process.

The three major developmental psychology issues are focused on physical development, cognitive development, and emotional development.

The seven major stages of development are:

• Infant development
• Toddler development
• Preschool development
• Middle childhood development
• Adolescent development
• Early adult development
• Older adult development

The principles of developmental psychology outlined by Paul Baltes suggest that development is (1) lifelong, (2) multidimensional, (3) multidirectional, (4) involves gains and losses, (5) plastic, and that developmental psychology is (6) multidisciplinary.  

Four developmental issues that psychologists explore are focused on the relative contributions of:

• Nature vs. nurture : Is development primarily influenced by genetics or environmental factors?
• Early vs. later experience : Do early childhood events matter more than events that happen later in life?
• Continuity vs discontinuity : Is developmental change a gradual process or do changes happen suddenly and follow a specific course?
• Abnormal behavior vs. individual differences : What represents abnormal development and what can be considered individual variations in development?

Keenan T, Evans S. An Introduction to Child Development . 2nd ed. SAGE; 2009.

• Erikson EH. (1963).Childhood and Society. (2nd ed.). New York: Norton.
• Erikson EH. (1968).Identity: Youth and Crisis. New York: Norton.

By Kendra Cherry, MSEd Kendra Cherry, MS, is a psychosocial rehabilitation specialist, psychology educator, and author of the "Everything Psychology Book."

The Life Span Perspective of Development Essay

The aspects of the life span perspective of development, freud and erickson’s theories of life span development, interaction of the heredity and environment.

During the life, people change significantly with references to their physical appearance and characteristics and with references to their mental and emotional progress. The life span perspective of the human development is based on the idea that a person moves through several stages of development during the whole life (Berger, 2011, p. 7).

Thus, certain changes are typical for the definite stages of life, but it is also important to pay attention to the individual character of experienced changes because all the people are different. From this point, the life span perspective aims to explain the human development with the focus on separate phases completed during the whole life; and all the stages of the human development are taken into consideration in spite of the fact that the followers of this perspective are inclined to determine phases according to different criteria.

The life span perspective of the human development is characterized by the complex approach to analyzing all the aspects of the people’s changes observed during different life stages. As a result, it is possible to speak about the multidimensional character of the approach because all the aspects are discussed in their connection.

According to Berger, the human development presented as the life span is multidirectional, multicontextual, multicultural, multidisciplinary, and plastic (Berger, 2011, p. 10-18). This statement means that it is irrelevant to discuss the human development as started at one point and moving to another one; or as dependent only on one context, including only the family or social status; or as dependent only on one culture.

The people’s development is the complex process because a person is influenced by a lot of environments, cultures, and situations during the life span. This person interacts with many people belonging to different cultures and ethnic groups and develops the specific personal traits during the whole life (Berger, 2011, p. 10). Each detail associated with the person’s life, such as the family, socioeconomic status, and character, matters to explain the aspects of the person’s life span development.

There are many theories of the life span development which differ in criteria according to which psychologists determine different stages of the people’s life. Freud and Erickson’s theories are similar in focusing on the age-related steps, but they are different in criteria to state the fundaments for the stages’ progress. Thus, Freud’s theory depends on a range of psychosexual phases because the theorist is inclined to associate the man’s sexual nature with the psychological development.

Freud concentrates on the childhood as the period when a child experiences some crises which determine the oral, anal, phallic phases, and the period of latency. These periods lead to the genital stage lasting during the adolescence and adulthood. According to Freud, the stages depend on the centers of pleasures important during different stages (Berger, 2011, p. 43-47). As a result, the human sexual nature is chosen as the criterion to propose the life span stages.

Erickson’s theory is based on the social aspect. If Freud’s theory depends on psychological crises associated with the sexual development, Erickson’s theory depends on psychological crises associated with the people’s social interactions. Erickson states that people move through a range of stages during which they are impacted by the peculiarities of the environments and interactions with people.

People’s activities and behaviors during different stages are explained with references to their attitude to their society and personal interactions. As a result, at different stages, people are influenced by the conflicts between their identity or independent life and society which can be represented as the family, relatives, friends, and other people (Berger, 2011, p. 51).

A person can be discussed as an individual only with references to the unique combination of the heredity and environment’s impact on his or her development. Today, scientists cannot provide the single opinion on the role of nature and nurture in the person’s development because it is impossible to state what factors affect the personal development drastically. Heredity makes people different in their appearance and physical qualities when nurture makes people different in their vision of the world, education, and lifestyle.

It is important to note that nature and nurture are in ongoing interaction to affect the person’s individual development. The unique complex of the genetic material and environment produces a unique person who should be discussed only with references to combination of heredity and environment (Berger, 2011, p. 9). Inherited qualities should be combined with the environment’s impact to influence the individual’s development.

The life span perspective of the human development depends on the idea that people move through many stages during their life, but this movement should be discussed as the multidimensional process rather than as the linear movement. Such aspects as the interaction of nurture and nature can influence the person’s development significantly because various inherited qualities or life situations can affect the people’s life differently.

Berger, K. S. (2011). The developing person through the life span . New York, NY: Worth Publishers.

• Chicago (A-D)
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IvyPanda. (2019, November 23). The Life Span Perspective of Development. https://ivypanda.com/essays/the-life-span-perspective-of-development/

"The Life Span Perspective of Development." IvyPanda , 23 Nov. 2019, ivypanda.com/essays/the-life-span-perspective-of-development/.

IvyPanda . (2019) 'The Life Span Perspective of Development'. 23 November.

IvyPanda . 2019. "The Life Span Perspective of Development." November 23, 2019. https://ivypanda.com/essays/the-life-span-perspective-of-development/.

1. IvyPanda . "The Life Span Perspective of Development." November 23, 2019. https://ivypanda.com/essays/the-life-span-perspective-of-development/.

Bibliography

IvyPanda . "The Life Span Perspective of Development." November 23, 2019. https://ivypanda.com/essays/the-life-span-perspective-of-development/.

• Piaget and Erickson’s Developmental Stages
• Erik Erickson. Trust versus Mistrust
• Erickson’s Model of Development of Person
• Erickson’s Theory of Psychosocial Development
• Erickson's Theory of Development
• “Death of a Salesman” by Steven Erickson
• Eric Erickson's Theory Explaining Development
• Clif Bar Inc. Balancing Priorities
• Behavioral Science: Heredity and Hormones
• Chapter 2 of Essentials of Life-Span Development by Santrock
• Concept Of “Four Idols”
• How ADHD Develops Into Adult ADD
• The Effect of Emotions and Desires on Individual Development
• Workplace Motivation Theories
• Psychosocial Theory of Development by Erick Erikson

• Get involved

Rich countries attain record human development, but half of the poorest have gone backwards, finds UN Development Programme

Rising political polarization and distrust results in gridlock on global challenges

March 12, 2024

Rich countries are experiencing record-high levels of human development while half of the world’s poorest countries remain below their pre-covid crisis level of progress.

New York - Uneven development progress is leaving the poorest behind, exacerbating inequality, and stoking political polarization on a global scale. The result is a dangerous gridlock that must be urgently tackled through collective action, according to a new report released today by the United Nations Development Programme (UNDP).

The 2023/24 Human Development Report (HDR), titled Breaking the Gridlock : Reimagining cooperation in a polarized world , reveals a troubling trend: the rebound in the global Human Development Index (HDI) – a summary measure reflecting a country’s Gross National Income (GNI) per capita, education, and life expectancy – has been partial, incomplete, and unequal. 

The HDI is projected to reach record highs in 2023 after steep declines during 2020 and 2021. But this progress is deeply uneven. Rich countries are experiencing record-high levels of human development while half of the world’s poorest countries remain below their pre-crisis level of progress. 

Global inequalities are compounded by substantial economic concentration. As referenced in the report, almost 40 percent of global trade in goods is concentrated in three or fewer countries; and in 2021 the market capitalization of each of the three largest tech companies in the world surpassed the Gross Domestic Product (GDP) of more than 90 percent of countries that year.

“The widening human development gap revealed by the report shows that the two-decade trend of steadily reducing inequalities between wealthy and poor nations is now in reverse. Despite our deeply interconnected global societies, we are falling short. We must leverage our interdependence as well as our capacities to address our shared and existential challenges and ensure people’s aspirations are met,” said Achim Steiner, head of the UN Development Programme. “This gridlock carries a significant human toll. The failure of collective action to advance action on climate change, digitalization or poverty and inequality not only hinders human development but also worsens polarization and further erodes trust in people and institutions worldwide.”

The report argues that advancing international collective action is hindered by an emerging ‘democracy paradox’: while 9 in 10 people worldwide endorse democracy, over half of global survey respondents express support for leaders that may undermine it by bypassing fundamental rules of the democratic process, as per data analysed in the report. Half of people surveyed worldwide report having no or limited control over their lives, and over two-thirds believe they have little influence on their government’s decisions.

Political polarization is also a growing concern with global repercussions. Along with a sense of powerlessness, report authors say, it is fuelling inward-turning policy approaches – starkly at odds with the global cooperation needed to address urgent issues like the decarbonization of our economies, misuse of digital technologies, and conflict. This is particularly alarming in light of 2023's record-breaking temperatures, which emphasize the immediate need for united action to tackle the climate crisis, or in the advent of artificial intelligence as a new and fast-evolving technological frontier with little or no regulatory guard rails.

The report highlights that deglobalization is neither feasible nor realistic in today’s world and that economic interdependence remains high. It points out that no region is close to self-sufficiency, as all rely on imports from other regions of 25 percent or more of at least one major type of goods and services.

"In a world marked by increasing polarization and division, neglecting to invest in each other poses a serious threat to our wellbeing and security. Protectionist approaches cannot address the complex, interconnected challenges we face, including pandemic prevention, climate change, and digital regulation,” Steiner added. “Our problems are intertwined, requiring equally interconnected solutions. By adopting an opportunity-driven agenda that emphasizes the benefits of the energy transition and of artificial intelligence for human development, we have a chance to break through the current deadlock and reignite a commitment to a shared future."

The report emphasizes how global interdependence is being reconfigured and calls for a new generation of global public goods. It proposes four areas for immediate action:

• planetary public goods, for climate stability, as we confront the unprecedented challenges of the Anthropocene; 
• digital global public goods, for greater equity in harnessing new technologies for equitable human development; 
• new and expanded financial mechanisms, including a novel track in international cooperation that complements humanitarian assistance and traditional development aid to low-income countries; and 
• dialling down political polarization through new governance approaches focused on enhancing people's voices in deliberation and tackling misinformation.

In this context, multilateralism plays a fundamental role, the report argues, because bilateral engagements are not able to address the irreducibly planetary nature of the provision of global public goods.

More key data from the report

• In 2023, all 38 countries that are members of the Organization for Economic Co-operation and Development (OECD) achieved higher Human Development Index (HDI) scores compared to their levels in 2019. 
• Among the 35 least developed countries (LDCs) that experienced a decline in their HDI in 2020 and/or 2021, more than half (18 countries) have not yet recovered to their human development levels of 2019. 
• All developing regions have not met their anticipated HDI levels based on the trend before 2019. It appears they have shifted to a lower HDI trajectory, indicating potential permanent setbacks in future human development progress.
• The impact of human development losses is in sharp focus in Afghanistan and Ukraine. Afghanistan’s HDI has been knocked back by a staggering ten years, while Ukraine’s HDI dropped to its lowest level since 2004.
• The report cites research indicating that countries with populist governments have lower GDP-growth rates. Fifteen years after a populist government assumes office, the GDP per capita is found to be 10 percent lower than it might under a non-populist government scenario.

To view the full report, visit https://hdr.undp.org/content/human-development-report-2023-24

Media contacts

For more information or to request an interview, contact:

In New York City:  [email protected] or  [email protected]

In Geneva:  [email protected]

UNDP is the leading United Nations organization fighting to end the injustice of poverty, inequality, and climate change. Working with our broad network of experts and partners in 170 countries, we help nations to build integrated, lasting solutions for people and the planet. Learn more at undp.org or follow at @UNDP.

About the Human Development Report Office

The mission of the Human Development Report Office (HDRO) is to advance human development. The goal is to contribute towards the expansion of opportunities, choice, and freedom. The office works towards this goal by promoting innovative new ideas, advocating practical policy changes, and constructively challenging policies and approaches that constrain human development. The office works with others to achieve change through writing and research, data analysis and presentation, support to national and regional analysis and outreach and advocacy work.

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Montenegro among countries with very high development.

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The 2023/24 Human Development Report (HDR), titled “Breaking the Gridlock: Reimagining cooperation in a polarized world", reveals a troubling trend: the rebound i...

Human Development in Latin America and the Caribbean Improves More Than in Other Regions but Fails to Recover Pre-Pandemic Levels, reveals the UNDP

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Rich countries attain record human development, but half of the poorest have gone backwards

Home — Essay Samples — Economics — Human Development — Reflection Paper on Human Development

Reflection Paper on Human Development

• Categories: Art History Human Development

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Published: Mar 16, 2024

Words: 674 | Page: 1 | 4 min read

Table of contents

Key concepts and theories of human development, impact of environmental and genetic factors on development, implications for personal and professional growth.

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The Human Development Report 2023-2024 - UN Secretary-General Antonio Guterres Message

We are living in an age of polarization.

Among communities and across regions, people are being driven apart by rising inequality, escalating conflicts, and record-breaking climate shocks.

Misinformation and a breakdown of trust are tearing the social fabric and reducing space for meaningful public discourse.

Divisions are deepening at a moment when cooperation is critical to our shared future:

Cooperation to end conflicts.

Cooperation to tackle the climate crisis and advance the Sustainable Development Goals.

And cooperation to agree on guardrails for digital technologies, like Artificial Intelligence.

This year’s Human Development Report explores the roots of polarization and its devastating impact on sustainable development.

It builds on previous analysis of people’s feelings of insecurity and uncertainty, offering a path out of stalemate and division.

It demonstrates that our best hope for the future is by combating divisive rhetoric and stressing the common ground that unites the vast majority of people everywhere.  

And it calls for the urgent expansion of our systems of international cooperation, so that they can deliver on people’s priorities: sustainable development; a clean environment; a livable planet; safety, security and dignity for all.

September’s Summit of the Future will consider exactly these questions.

As we prepare for the Summit, I recommend the Human Development Report as an important contribution.

It shows that solutions to global problems are within our grasp – by reimagining cooperation and uniting for a better world.

Thank you. 

António Guterres

Goals we are supporting through this initiative, un entities involved in this initiative.

Human Development Report 2023-24

• The paths to equal
• 2023 Global Multidimensional Poverty Index (MPI)
• 2023 Gender Social Norms Index Publication
• Human Development Index
• Country Insights
• Human Climate Horizons data and insights platform
• Thematic Composite Indices
• Documentation and downloads
• What is Human development?
• NHDR/RHDR Report preparation toolkit

Breaking the gridlock: Reimagining cooperation in a polarized world

UNDP (United Nations Development Programme). 2024. Human Development Report 2023-24: Breaking the gridlock: Reimagining cooperation in a polarized world. New York.

The 2023/24 Human Development Report assesses the dangerous gridlock resulting from uneven development progress, intensifying inequality, and escalating political polarization, that we must urgently tackle. The report emphasizes how global interdependence is being reconfigured and proposes a path forward where multilateralism plays a pivotal role.

Why does pursuing the ambitions of the 2030 Agenda for Sustainable Development and the Paris Agreement feel like a half-hearted slog through quicksand? Why in many places does restoring peace, even pauses or ceasefires as hopeful preludes to peace, feel so elusive? Why are we immobilized on digital governance while artificial intelligence races ahead in a data goldrush? In short, why are we so stuck? And how do we get unstuck without resorting myopically to violence or isolationism? These questions motivate the 2023/2024 Human Development Report.

2023/24 HDR Global Launch Recording

HDR 2023/24

Media package, acknowledgements, hdr 2023/24 look back at the preparation process, 2023/24 hdr animated video summary.

End the Phone-Based Childhood Now

The environment in which kids grow up today is hostile to human development.

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S omething went suddenly and horribly wrong for adolescents in the early 2010s. By now you’ve likely seen the statistics : Rates of depression and anxiety in the United States—fairly stable in the 2000s—rose by more than 50 percent in many studies from 2010 to 2019. The suicide rate rose 48 percent for adolescents ages 10 to 19. For girls ages 10 to 14, it rose 131 percent.

The problem was not limited to the U.S.: Similar patterns emerged around the same time in Canada, the U.K., Australia, New Zealand , the Nordic countries , and beyond . By a variety of measures and in a variety of countries, the members of Generation Z (born in and after 1996) are suffering from anxiety, depression, self-harm, and related disorders at levels higher than any other generation for which we have data.

The decline in mental health is just one of many signs that something went awry. Loneliness and friendlessness among American teens began to surge around 2012. Academic achievement went down, too. According to “The Nation’s Report Card,” scores in reading and math began to decline for U.S. students after 2012, reversing decades of slow but generally steady increase. PISA, the major international measure of educational trends, shows that declines in math, reading, and science happened globally, also beginning in the early 2010s.

Read: It sure looks like phones are making students dumber

As the oldest members of Gen Z reach their late 20s, their troubles are carrying over into adulthood. Young adults are dating less , having less sex, and showing less interest in ever having children than prior generations. They are more likely to live with their parents. They were less likely to get jobs as teens , and managers say they are harder to work with. Many of these trends began with earlier generations, but most of them accelerated with Gen Z.

Surveys show that members of Gen Z are shyer and more risk averse than previous generations, too, and risk aversion may make them less ambitious. In an interview last May , OpenAI co-founder Sam Altman and Stripe co-founder Patrick Collison noted that, for the first time since the 1970s, none of Silicon Valley’s preeminent entrepreneurs are under 30. “Something has really gone wrong,” Altman said. In a famously young industry, he was baffled by the sudden absence of great founders in their 20s.

Generations are not monolithic, of course. Many young people are flourishing. Taken as a whole, however, Gen Z is in poor mental health and is lagging behind previous generations on many important metrics. And if a generation is doing poorly––if it is more anxious and depressed and is starting families, careers, and important companies at a substantially lower rate than previous generations––then the sociological and economic consequences will be profound for the entire society.

What happened in the early 2010s that altered adolescent development and worsened mental health? Theories abound , but the fact that similar trends are found in many countries worldwide means that events and trends that are specific to the United States cannot be the main story.

I think the answer can be stated simply, although the underlying psychology is complex: Those were the years when adolescents in rich countries traded in their flip phones for smartphones and moved much more of their social lives online—particularly onto social-media platforms designed for virality and addiction . Once young people began carrying the entire internet in their pockets, available to them day and night, it altered their daily experiences and developmental pathways across the board. Friendship, dating, sexuality, exercise, sleep, academics, politics, family dynamics, identity—all were affected. Life changed rapidly for younger children, too, as they began to get access to their parents’ smartphones and, later, got their own iPads, laptops, and even smartphones during elementary school.

Jonathan Haidt: Get phones out of schools now

As a social psychologist who has long studied social and moral development, I have been involved in debates about the effects of digital technology for years. Typically, the scientific questions have been framed somewhat narrowly, to make them easier to address with data. For example, do adolescents who consume more social media have higher levels of depression? Does using a smartphone just before bedtime interfere with sleep? The answer to these questions is usually found to be yes, although the size of the relationship is often statistically small, which has led some researchers to conclude that these new technologies are not responsible for the gigantic increases in mental illness that began in the early 2010s.

But before we can evaluate the evidence on any one potential avenue of harm, we need to step back and ask a broader question: What is childhood––including adolescence––and how did it change when smartphones moved to the center of it? If we take a more holistic view of what childhood is and what young children, tweens, and teens need to do to mature into competent adults, the picture becomes much clearer. Smartphone-based life, it turns out, alters or interferes with a great number of developmental processes.

The intrusion of smartphones and social media are not the only changes that have deformed childhood. There’s an important backstory, beginning as long ago as the 1980s, when we started systematically depriving children and adolescents of freedom, unsupervised play, responsibility, and opportunities for risk taking, all of which promote competence, maturity, and mental health. But the change in childhood accelerated in the early 2010s, when an already independence-deprived generation was lured into a new virtual universe that seemed safe to parents but in fact is more dangerous, in many respects, than the physical world.

My claim is that the new phone-based childhood that took shape roughly 12 years ago is making young people sick and blocking their progress to flourishing in adulthood. We need a dramatic cultural correction, and we need it now.

Brain development is sometimes said to be “experience-expectant,” because specific parts of the brain show increased plasticity during periods of life when an animal’s brain can “expect” to have certain kinds of experiences. You can see this with baby geese, who will imprint on whatever mother-sized object moves in their vicinity just after they hatch. You can see it with human children, who are able to learn languages quickly and take on the local accent, but only through early puberty; after that, it’s hard to learn a language and sound like a native speaker. There is also some evidence of a sensitive period for cultural learning more generally. Japanese children who spent a few years in California in the 1970s came to feel “American” in their identity and ways of interacting only if they attended American schools for a few years between ages 9 and 15. If they left before age 9, there was no lasting impact. If they didn’t arrive until they were 15, it was too late; they didn’t come to feel American.

Human childhood is an extended cultural apprenticeship with different tasks at different ages all the way through puberty. Once we see it this way, we can identify factors that promote or impede the right kinds of learning at each age. For children of all ages, one of the most powerful drivers of learning is the strong motivation to play. Play is the work of childhood, and all young mammals have the same job: to wire up their brains by playing vigorously and often, practicing the moves and skills they’ll need as adults. Kittens will play-pounce on anything that looks like a mouse tail. Human children will play games such as Tag and Sharks and Minnows, which let them practice both their predator skills and their escaping-from-predator skills. Adolescents will play sports with greater intensity, and will incorporate playfulness into their social interactions—flirting, teasing, and developing inside jokes that bond friends together. Hundreds of studies on young rats, monkeys, and humans show that young mammals want to play, need to play, and end up socially, cognitively, and emotionally impaired when they are deprived of play .

One crucial aspect of play is physical risk taking. Children and adolescents must take risks and fail—often—in environments in which failure is not very costly. This is how they extend their abilities, overcome their fears, learn to estimate risk, and learn to cooperate in order to take on larger challenges later. The ever-present possibility of getting hurt while running around, exploring, play-fighting, or getting into a real conflict with another group adds an element of thrill, and thrilling play appears to be the most effective kind for overcoming childhood anxieties and building social, emotional, and physical competence. The desire for risk and thrill increases in the teen years, when failure might carry more serious consequences. Children of all ages need to choose the risk they are ready for at a given moment. Young people who are deprived of opportunities for risk taking and independent exploration will, on average, develop into more anxious and risk-averse adults .

From the April 2014 issue: The overprotected kid

Human childhood and adolescence evolved outdoors, in a physical world full of dangers and opportunities. Its central activities––play, exploration, and intense socializing––were largely unsupervised by adults, allowing children to make their own choices, resolve their own conflicts, and take care of one another. Shared adventures and shared adversity bound young people together into strong friendship clusters within which they mastered the social dynamics of small groups, which prepared them to master bigger challenges and larger groups later on.

And then we changed childhood.

The changes started slowly in the late 1970s and ’80s, before the arrival of the internet, as many parents in the U.S. grew fearful that their children would be harmed or abducted if left unsupervised. Such crimes have always been extremely rare, but they loomed larger in parents’ minds thanks in part to rising levels of street crime combined with the arrival of cable TV, which enabled round-the-clock coverage of missing-children cases. A general decline in social capital ––the degree to which people knew and trusted their neighbors and institutions–– exacerbated parental fears . Meanwhile, rising competition for college admissions encouraged more intensive forms of parenting . In the 1990s, American parents began pulling their children indoors or insisting that afternoons be spent in adult-run enrichment activities. Free play, independent exploration, and teen-hangout time declined.

In recent decades, seeing unchaperoned children outdoors has become so novel that when one is spotted in the wild, some adults feel it is their duty to call the police. In 2015, the Pew Research Center found that parents, on average, believed that children should be at least 10 years old to play unsupervised in front of their house, and that kids should be 14 before being allowed to go unsupervised to a public park. Most of these same parents had enjoyed joyous and unsupervised outdoor play by the age of 7 or 8.

But overprotection is only part of the story. The transition away from a more independent childhood was facilitated by steady improvements in digital technology, which made it easier and more inviting for young people to spend a lot more time at home, indoors, and alone in their rooms. Eventually, tech companies got access to children 24/7. They developed exciting virtual activities, engineered for “engagement,” that are nothing like the real-world experiences young brains evolved to expect.

The first wave came ashore in the 1990s with the arrival of dial-up internet access, which made personal computers good for something beyond word processing and basic games. By 2003, 55 percent of American households had a computer with (slow) internet access. Rates of adolescent depression, loneliness, and other measures of poor mental health did not rise in this first wave. If anything, they went down a bit. Millennial teens (born 1981 through 1995), who were the first to go through puberty with access to the internet, were psychologically healthier and happier, on average, than their older siblings or parents in Generation X (born 1965 through 1980).

The second wave began to rise in the 2000s, though its full force didn’t hit until the early 2010s. It began rather innocently with the introduction of social-media platforms that helped people connect with their friends. Posting and sharing content became much easier with sites such as Friendster (launched in 2003), Myspace (2003), and Facebook (2004).

Teens embraced social media soon after it came out, but the time they could spend on these sites was limited in those early years because the sites could only be accessed from a computer, often the family computer in the living room. Young people couldn’t access social media (and the rest of the internet) from the school bus, during class time, or while hanging out with friends outdoors. Many teens in the early-to-mid-2000s had cellphones, but these were basic phones (many of them flip phones) that had no internet access. Typing on them was difficult––they had only number keys. Basic phones were tools that helped Millennials meet up with one another in person or talk with each other one-on-one. I have seen no evidence to suggest that basic cellphones harmed the mental health of Millennials.

It was not until the introduction of the iPhone (2007), the App Store (2008), and high-speed internet (which reached 50 percent of American homes in 2007 )—and the corresponding pivot to mobile made by many providers of social media, video games, and porn—that it became possible for adolescents to spend nearly every waking moment online. The extraordinary synergy among these innovations was what powered the second technological wave. In 2011, only 23 percent of teens had a smartphone. By 2015, that number had risen to 73 percent , and a quarter of teens said they were online “almost constantly.” Their younger siblings in elementary school didn’t usually have their own smartphones, but after its release in 2010, the iPad quickly became a staple of young children’s daily lives. It was in this brief period, from 2010 to 2015, that childhood in America (and many other countries) was rewired into a form that was more sedentary, solitary, virtual, and incompatible with healthy human development.

In the 2000s, Silicon Valley and its world-changing inventions were a source of pride and excitement in America. Smart and ambitious young people around the world wanted to move to the West Coast to be part of the digital revolution. Tech-company founders such as Steve Jobs and Sergey Brin were lauded as gods, or at least as modern Prometheans, bringing humans godlike powers. The Arab Spring bloomed in 2011 with the help of decentralized social platforms, including Twitter and Facebook. When pundits and entrepreneurs talked about the power of social media to transform society, it didn’t sound like a dark prophecy.

You have to put yourself back in this heady time to understand why adults acquiesced so readily to the rapid transformation of childhood. Many parents had concerns , even then, about what their children were doing online, especially because of the internet’s ability to put children in contact with strangers. But there was also a lot of excitement about the upsides of this new digital world. If computers and the internet were the vanguards of progress, and if young people––widely referred to as “digital natives”––were going to live their lives entwined with these technologies, then why not give them a head start? I remember how exciting it was to see my 2-year-old son master the touch-and-swipe interface of my first iPhone in 2008. I thought I could see his neurons being woven together faster as a result of the stimulation it brought to his brain, compared to the passivity of watching television or the slowness of building a block tower. I thought I could see his future job prospects improving.

Touchscreen devices were also a godsend for harried parents. Many of us discovered that we could have peace at a restaurant, on a long car trip, or at home while making dinner or replying to emails if we just gave our children what they most wanted: our smartphones and tablets. We saw that everyone else was doing it and figured it must be okay.

It was the same for older children, desperate to join their friends on social-media platforms, where the minimum age to open an account was set by law to 13, even though no research had been done to establish the safety of these products for minors. Because the platforms did nothing (and still do nothing) to verify the stated age of new-account applicants, any 10-year-old could open multiple accounts without parental permission or knowledge, and many did. Facebook and later Instagram became places where many sixth and seventh graders were hanging out and socializing. If parents did find out about these accounts, it was too late. Nobody wanted their child to be isolated and alone, so parents rarely forced their children to shut down their accounts.

We had no idea what we were doing.

The numbers are hard to believe. The most recent Gallup data show that American teens spend about five hours a day just on social-media platforms (including watching videos on TikTok and YouTube). Add in all the other phone- and screen-based activities, and the number rises to somewhere between seven and nine hours a day, on average . The numbers are even higher in single-parent and low-income families, and among Black, Hispanic, and Native American families.

These very high numbers do not include time spent in front of screens for school or homework, nor do they include all the time adolescents spend paying only partial attention to events in the real world while thinking about what they’re missing on social media or waiting for their phones to ping. Pew reports that in 2022, one-third of teens said they were on one of the major social-media sites “almost constantly,” and nearly half said the same of the internet in general. For these heavy users, nearly every waking hour is an hour absorbed, in full or in part, by their devices.

In Thoreau’s terms, how much of life is exchanged for all this screen time? Arguably, most of it. Everything else in an adolescent’s day must get squeezed down or eliminated entirely to make room for the vast amount of content that is consumed, and for the hundreds of “friends,” “followers,” and other network connections that must be serviced with texts, posts, comments, likes, snaps, and direct messages. I recently surveyed my students at NYU, and most of them reported that the very first thing they do when they open their eyes in the morning is check their texts, direct messages, and social-media feeds. It’s also the last thing they do before they close their eyes at night. And it’s a lot of what they do in between.

The amount of time that adolescents spend sleeping declined in the early 2010s , and many studies tie sleep loss directly to the use of devices around bedtime, particularly when they’re used to scroll through social media . Exercise declined , too, which is unfortunate because exercise, like sleep, improves both mental and physical health. Book reading has been declining for decades, pushed aside by digital alternatives, but the decline, like so much else, sped up in the early 2010 s. With passive entertainment always available, adolescent minds likely wander less than they used to; contemplation and imagination might be placed on the list of things winnowed down or crowded out.

But perhaps the most devastating cost of the new phone-based childhood was the collapse of time spent interacting with other people face-to-face. A study of how Americans spend their time found that, before 2010, young people (ages 15 to 24) reported spending far more time with their friends (about two hours a day, on average, not counting time together at school) than did older people (who spent just 30 to 60 minutes with friends). Time with friends began decreasing for young people in the 2000s, but the drop accelerated in the 2010s, while it barely changed for older people. By 2019, young people’s time with friends had dropped to just 67 minutes a day. It turns out that Gen Z had been socially distancing for many years and had mostly completed the project by the time COVID-19 struck.

Read: What happens when kids don’t see their peers for months

You might question the importance of this decline. After all, isn’t much of this online time spent interacting with friends through texting, social media, and multiplayer video games? Isn’t that just as good?

Some of it surely is, and virtual interactions offer unique benefits too, especially for young people who are geographically or socially isolated. But in general, the virtual world lacks many of the features that make human interactions in the real world nutritious, as we might say, for physical, social, and emotional development. In particular, real-world relationships and social interactions are characterized by four features—typical for hundreds of thousands of years—that online interactions either distort or erase.

First, real-world interactions are embodied , meaning that we use our hands and facial expressions to communicate, and we learn to respond to the body language of others. Virtual interactions, in contrast, mostly rely on language alone. No matter how many emojis are offered as compensation, the elimination of communication channels for which we have eons of evolutionary programming is likely to produce adults who are less comfortable and less skilled at interacting in person.

Second, real-world interactions are synchronous ; they happen at the same time. As a result, we learn subtle cues about timing and conversational turn taking. Synchronous interactions make us feel closer to the other person because that’s what getting “in sync” does. Texts, posts, and many other virtual interactions lack synchrony. There is less real laughter, more room for misinterpretation, and more stress after a comment that gets no immediate response.

Third, real-world interactions primarily involve one‐to‐one communication , or sometimes one-to-several. But many virtual communications are broadcast to a potentially huge audience. Online, each person can engage in dozens of asynchronous interactions in parallel, which interferes with the depth achieved in all of them. The sender’s motivations are different, too: With a large audience, one’s reputation is always on the line; an error or poor performance can damage social standing with large numbers of peers. These communications thus tend to be more performative and anxiety-inducing than one-to-one conversations.

Finally, real-world interactions usually take place within communities that have a high bar for entry and exit , so people are strongly motivated to invest in relationships and repair rifts when they happen. But in many virtual networks, people can easily block others or quit when they are displeased. Relationships within such networks are usually more disposable.

From the September 2015 issue: The coddling of the American mind

These unsatisfying and anxiety-producing features of life online should be recognizable to most adults. Online interactions can bring out antisocial behavior that people would never display in their offline communities. But if life online takes a toll on adults, just imagine what it does to adolescents in the early years of puberty, when their “experience expectant” brains are rewiring based on feedback from their social interactions.

Kids going through puberty online are likely to experience far more social comparison, self-consciousness, public shaming, and chronic anxiety than adolescents in previous generations, which could potentially set developing brains into a habitual state of defensiveness. The brain contains systems that are specialized for approach (when opportunities beckon) and withdrawal (when threats appear or seem likely). People can be in what we might call “discover mode” or “defend mode” at any moment, but generally not both. The two systems together form a mechanism for quickly adapting to changing conditions, like a thermostat that can activate either a heating system or a cooling system as the temperature fluctuates. Some people’s internal thermostats are generally set to discover mode, and they flip into defend mode only when clear threats arise. These people tend to see the world as full of opportunities. They are happier and less anxious. Other people’s internal thermostats are generally set to defend mode, and they flip into discover mode only when they feel unusually safe. They tend to see the world as full of threats and are more prone to anxiety and depressive disorders.

A simple way to understand the differences between Gen Z and previous generations is that people born in and after 1996 have internal thermostats that were shifted toward defend mode. This is why life on college campuses changed so suddenly when Gen Z arrived, beginning around 2014. Students began requesting “safe spaces” and trigger warnings. They were highly sensitive to “microaggressions” and sometimes claimed that words were “violence.” These trends mystified those of us in older generations at the time, but in hindsight, it all makes sense. Gen Z students found words, ideas, and ambiguous social encounters more threatening than had previous generations of students because we had fundamentally altered their psychological development.

Staying on task while sitting at a computer is hard enough for an adult with a fully developed prefrontal cortex. It is far more difficult for adolescents in front of their laptop trying to do homework. They are probably less intrinsically motivated to stay on task. They’re certainly less able, given their undeveloped prefrontal cortex, and hence it’s easy for any company with an app to lure them away with an offer of social validation or entertainment. Their phones are pinging constantly— one study found that the typical adolescent now gets 237 notifications a day, roughly 15 every waking hour. Sustained attention is essential for doing almost anything big, creative, or valuable, yet young people find their attention chopped up into little bits by notifications offering the possibility of high-pleasure, low-effort digital experiences.

It even happens in the classroom. Studies confirm that when students have access to their phones during class time, they use them, especially for texting and checking social media, and their grades and learning suffer . This might explain why benchmark test scores began to decline in the U.S. and around the world in the early 2010s—well before the pandemic hit.

The neural basis of behavioral addiction to social media or video games is not exactly the same as chemical addiction to cocaine or opioids. Nonetheless, they all involve abnormally heavy and sustained activation of dopamine neurons and reward pathways. Over time, the brain adapts to these high levels of dopamine; when the child is not engaged in digital activity, their brain doesn’t have enough dopamine, and the child experiences withdrawal symptoms. These generally include anxiety, insomnia, and intense irritability. Kids with these kinds of behavioral addictions often become surly and aggressive, and withdraw from their families into their bedrooms and devices.

Social-media and gaming platforms were designed to hook users. How successful are they? How many kids suffer from digital addictions?

The main addiction risks for boys seem to be video games and porn. “ Internet gaming disorder ,” which was added to the main diagnosis manual of psychiatry in 2013 as a condition for further study, describes “significant impairment or distress” in several aspects of life, along with many hallmarks of addiction, including an inability to reduce usage despite attempts to do so. Estimates for the prevalence of IGD range from 7 to 15 percent among adolescent boys and young men. As for porn, a nationally representative survey of American adults published in 2019 found that 7 percent of American men agreed or strongly agreed with the statement “I am addicted to pornography”—and the rates were higher for the youngest men.

Girls have much lower rates of addiction to video games and porn, but they use social media more intensely than boys do. A study of teens in 29 nations found that between 5 and 15 percent of adolescents engage in what is called “problematic social media use,” which includes symptoms such as preoccupation, withdrawal symptoms, neglect of other areas of life, and lying to parents and friends about time spent on social media. That study did not break down results by gender, but many others have found that rates of “problematic use” are higher for girls.

Jonathan Haidt: The dangerous experiment on teen girls

I don’t want to overstate the risks: Most teens do not become addicted to their phones and video games. But across multiple studies and across genders, rates of problematic use come out in the ballpark of 5 to 15 percent. Is there any other consumer product that parents would let their children use relatively freely if they knew that something like one in 10 kids would end up with a pattern of habitual and compulsive use that disrupted various domains of life and looked a lot like an addiction?

During that crucial sensitive period for cultural learning, from roughly ages 9 through 15, we should be especially thoughtful about who is socializing our children for adulthood. Instead, that’s when most kids get their first smartphone and sign themselves up (with or without parental permission) to consume rivers of content from random strangers. Much of that content is produced by other adolescents, in blocks of a few minutes or a few seconds.

This rerouting of enculturating content has created a generation that is largely cut off from older generations and, to some extent, from the accumulated wisdom of humankind, including knowledge about how to live a flourishing life. Adolescents spend less time steeped in their local or national culture. They are coming of age in a confusing, placeless, ahistorical maelstrom of 30-second stories curated by algorithms designed to mesmerize them. Without solid knowledge of the past and the filtering of good ideas from bad––a process that plays out over many generations––young people will be more prone to believe whatever terrible ideas become popular around them, which might explain why v ideos showing young people reacting positively to Osama bin Laden’s thoughts about America were trending on TikTok last fall.

All this is made worse by the fact that so much of digital public life is an unending supply of micro dramas about somebody somewhere in our country of 340 million people who did something that can fuel an outrage cycle, only to be pushed aside by the next. It doesn’t add up to anything and leaves behind only a distorted sense of human nature and affairs.

When our public life becomes fragmented, ephemeral, and incomprehensible, it is a recipe for anomie, or normlessness. The great French sociologist Émile Durkheim showed long ago that a society that fails to bind its people together with some shared sense of sacredness and common respect for rules and norms is not a society of great individual freedom; it is, rather, a place where disoriented individuals have difficulty setting goals and exerting themselves to achieve them. Durkheim argued that anomie was a major driver of suicide rates in European countries. Modern scholars continue to draw on his work to understand suicide rates today.

Durkheim’s observations are crucial for understanding what happened in the early 2010s. A long-running survey of American teens found that , from 1990 to 2010, high-school seniors became slightly less likely to agree with statements such as “Life often feels meaningless.” But as soon as they adopted a phone-based life and many began to live in the whirlpool of social media, where no stability can be found, every measure of despair increased. From 2010 to 2019, the number who agreed that their lives felt “meaningless” increased by about 70 percent, to more than one in five.

An additional source of evidence comes from Gen Z itself. With all the talk of regulating social media, raising age limits, and getting phones out of schools, you might expect to find many members of Gen Z writing and speaking out in opposition. I’ve looked for such arguments and found hardly any. In contrast, many young adults tell stories of devastation.

Freya India, a 24-year-old British essayist who writes about girls, explains how social-media sites carry girls off to unhealthy places: “It seems like your child is simply watching some makeup tutorials, following some mental health influencers, or experimenting with their identity. But let me tell you: they are on a conveyor belt to someplace bad. Whatever insecurity or vulnerability they are struggling with, they will be pushed further and further into it.” She continues:

Gen Z were the guinea pigs in this uncontrolled global social experiment. We were the first to have our vulnerabilities and insecurities fed into a machine that magnified and refracted them back at us, all the time, before we had any sense of who we were. We didn’t just grow up with algorithms. They raised us. They rearranged our faces. Shaped our identities. Convinced us we were sick.

Rikki Schlott, a 23-year-old American journalist and co-author of The Canceling of the American Mind , writes ,

The day-to-day life of a typical teen or tween today would be unrecognizable to someone who came of age before the smartphone arrived. Zoomers are spending an average of 9 hours daily in this screen-time doom loop—desperate to forget the gaping holes they’re bleeding out of, even if just for … 9 hours a day. Uncomfortable silence could be time to ponder why they’re so miserable in the first place. Drowning it out with algorithmic white noise is far easier.

A 27-year-old man who spent his adolescent years addicted (his word) to video games and pornography sent me this reflection on what that did to him:

I missed out on a lot of stuff in life—a lot of socialization. I feel the effects now: meeting new people, talking to people. I feel that my interactions are not as smooth and fluid as I want. My knowledge of the world (geography, politics, etc.) is lacking. I didn’t spend time having conversations or learning about sports. I often feel like a hollow operating system.

Or consider what Facebook found in a research project involving focus groups of young people, revealed in 2021 by the whistleblower Frances Haugen: “Teens blame Instagram for increases in the rates of anxiety and depression among teens,” an internal document said. “This reaction was unprompted and consistent across all groups.”

How can it be that an entire generation is hooked on consumer products that so few praise and so many ultimately regret using? Because smartphones and especially social media have put members of Gen Z and their parents into a series of collective-action traps. Once you understand the dynamics of these traps, the escape routes become clear.

Social media, in contrast, applies a lot more pressure on nonusers, at a much younger age and in a more insidious way. Once a few students in any middle school lie about their age and open accounts at age 11 or 12, they start posting photos and comments about themselves and other students. Drama ensues. The pressure on everyone else to join becomes intense. Even a girl who knows, consciously, that Instagram can foster beauty obsession, anxiety, and eating disorders might sooner take those risks than accept the seeming certainty of being out of the loop, clueless, and excluded. And indeed, if she resists while most of her classmates do not, she might, in fact, be marginalized, which puts her at risk for anxiety and depression, though via a different pathway than the one taken by those who use social media heavily. In this way, social media accomplishes a remarkable feat: It even harms adolescents who do not use it.

From the May 2022 issue: Jonathan Haidt on why the past 10 years of American life have been uniquely stupid

A recent study led by the University of Chicago economist Leonardo Bursztyn captured the dynamics of the social-media trap precisely. The researchers recruited more than 1,000 college students and asked them how much they’d need to be paid to deactivate their accounts on either Instagram or TikTok for four weeks. That’s a standard economist’s question to try to compute the net value of a product to society. On average, students said they’d need to be paid roughly $50 ($59 for TikTok, $47 for Instagram) to deactivate whichever platform they were asked about. Then the experimenters told the students that they were going to try to get most of the others in their school to deactivate that same platform, offering to pay them to do so as well, and asked, Now how much would you have to be paid to deactivate, if most others did so? The answer, on average, was less than zero. In each case, most students were willing to pay to have that happen.

Social media is all about network effects. Most students are only on it because everyone else is too. Most of them would prefer that nobody be on these platforms. Later in the study, students were asked directly, “Would you prefer to live in a world without Instagram [or TikTok]?” A majority of students said yes––58 percent for each app.

This is the textbook definition of what social scientists call a collective-action problem . It’s what happens when a group would be better off if everyone in the group took a particular action, but each actor is deterred from acting, because unless the others do the same, the personal cost outweighs the benefit. Fishermen considering limiting their catch to avoid wiping out the local fish population are caught in this same kind of trap. If no one else does it too, they just lose profit.

Cigarettes trapped individual smokers with a biological addiction. Social media has trapped an entire generation in a collective-action problem. Early app developers deliberately and knowingly exploited the psychological weaknesses and insecurities of young people to pressure them to consume a product that, upon reflection, many wish they could use less, or not at all.

The trap here is that each child thinks they need a smartphone because “everyone else” has one, and many parents give in because they don’t want their child to feel excluded. But if no one else had a smartphone—or even if, say, only half of the child’s sixth-grade class had one—parents would feel more comfortable providing a basic flip phone (or no phone at all). Delaying round-the-clock internet access until ninth grade (around age 14) as a national or community norm would help to protect adolescents during the very vulnerable first few years of puberty. According to a 2022 British study , these are the years when social-media use is most correlated with poor mental health. Family policies about tablets, laptops, and video-game consoles should be aligned with smartphone restrictions to prevent overuse of other screen activities.

The trap here, as with smartphones, is that each adolescent feels a strong need to open accounts on TikTok, Instagram, Snapchat, and other platforms primarily because that’s where most of their peers are posting and gossiping. But if the majority of adolescents were not on these accounts until they were 16, families and adolescents could more easily resist the pressure to sign up. The delay would not mean that kids younger than 16 could never watch videos on TikTok or YouTube—only that they could not open accounts, give away their data, post their own content, and let algorithms get to know them and their preferences.

Most schools claim that they ban phones, but this usually just means that students aren’t supposed to take their phone out of their pocket during class. Research shows that most students do use their phones during class time. They also use them during lunchtime, free periods, and breaks between classes––times when students could and should be interacting with their classmates face-to-face. The only way to get students’ minds off their phones during the school day is to require all students to put their phones (and other devices that can send or receive texts) into a phone locker or locked pouch at the start of the day. Schools that have gone phone-free always seem to report that it has improved the culture, making students more attentive in class and more interactive with one another. Published studies back them up .

Many parents are afraid to give their children the level of independence and responsibility they themselves enjoyed when they were young, even though rates of homicide, drunk driving, and other physical threats to children are way down in recent decades. Part of the fear comes from the fact that parents look at each other to determine what is normal and therefore safe, and they see few examples of families acting as if a 9-year-old can be trusted to walk to a store without a chaperone. But if many parents started sending their children out to play or run errands, then the norms of what is safe and accepted would change quickly. So would ideas about what constitutes “good parenting.” And if more parents trusted their children with more responsibility––for example, by asking their kids to do more to help out, or to care for others––then the pervasive sense of uselessness now found in surveys of high-school students might begin to dissipate.

It would be a mistake to overlook this fourth norm. If parents don’t replace screen time with real-world experiences involving friends and independent activity, then banning devices will feel like deprivation, not the opening up of a world of opportunities.

The main reason why the phone-based childhood is so harmful is because it pushes aside everything else. Smartphones are experience blockers. Our ultimate goal should not be to remove screens entirely, nor should it be to return childhood to exactly the way it was in 1960. Rather, it should be to create a version of childhood and adolescence that keeps young people anchored in the real world while flourishing in the digital age.

In recent decades, however, Congress has not been good at addressing public concerns when the solutions would displease a powerful and deep-pocketed industry. Governors and state legislators have been much more effective, and their successes might let us evaluate how well various reforms work. But the bottom line is that to change norms, we’re going to need to do most of the work ourselves, in neighborhood groups, schools, and other communities.

Read: Why Congress keeps failing to protect kids online

There are now hundreds of organizations––most of them started by mothers who saw what smartphones had done to their children––that are working to roll back the phone-based childhood or promote a more independent, real-world childhood. (I have assembled a list of many of them.) One that I co-founded, at LetGrow.org , suggests a variety of simple programs for parents or schools, such as play club (schools keep the playground open at least one day a week before or after school, and kids sign up for phone-free, mixed-age, unstructured play as a regular weekly activity) and the Let Grow Experience (a series of homework assignments in which students––with their parents’ consent––choose something to do on their own that they’ve never done before, such as walk the dog, climb a tree, walk to a store, or cook dinner).

Even without the help of organizations, parents could break their families out of collective-action traps if they coordinated with the parents of their children’s friends. Together they could create common smartphone rules and organize unsupervised play sessions or encourage hangouts at a home, park, or shopping mall.

P arents are fed up with what childhood has become. Many are tired of having daily arguments about technologies that were designed to grab hold of their children’s attention and not let go. But the phone-based childhood is not inevitable.

We didn’t know what we were doing in the early 2010s. Now we do. It’s time to end the phone-based childhood.

This article is adapted from Jonathan Haidt’s forthcoming book, The Anxious Generation: How the Great Rewiring of Childhood Is Causing an Epidemic of Mental Illness .

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‘Record high’ in UN development index masks stark disparities

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Despite record high global human development scores in 2023, disparities between the haves and the have-nots are widening, a new UN report revealed on Wednesday.

According to 2023-24 Human Development Report from the UN Development Programme ( UNDP ), the Human Development Index (HDI) stands at a new high following steep decline during 2020 and 2021 due to the COVID-19 pandemic.

Rich countries experienced unprecedented development, the Human Development Report details, yet half of the world’s poorest nations continue to languish below their pre-COVID crisis levels.

The HDI is a composite of statistics measuring such factors as per capita income, educational attainment and life expectancy.

‘Falling short’

UN_News_Centre

“The widening human development gap revealed by the report shows that the two-decade trend of steadily reducing inequalities between wealthy and poor nations is now in reverse,” said UNDP Administrator Achim Steiner.

“Despite our deeply interconnected global societies, we are falling short. We must leverage our interdependence as well as our capacities to address our shared and existential challenges and ensure people’s aspirations are met,” he added, noting a significant human toll behind the statistics.

“The failure of collective action to advance action on climate change, digitalization or poverty and inequality not only hinders human development but also worsens polarization and further erodes trust in people and institutions worldwide.”

Age of polarization

UN Secretary-General António Guterres also addressed the stark findings revealed by the Human Development Report, noting that while it explored the roots of polarization and the “devastating” impact on sustainable development, it also demonstrated “our best hope for the future.”

“It calls for the urgent expansion of our systems of international cooperation, so that they can deliver on people’s priorities: sustainable development; a clean environment; a liveable planet; safety, security and dignity for all,” the UN chief said.

He also emphasized the importance of the Summit of the Future, due to take place in September.

“As we prepare for the Summit, I recommend the Human Development Report as an important contribution. It shows that solutions to global problems are within our grasp – by reimagining cooperation and uniting for a better world,” he added.

‘Democracy paradox’

The UNDP report also identified an emerging “democracy paradox”, with most of those surveyed expressed support for democracy but also endorsing leaders who may undermine democratic principles.

This paradox, coupled with a sense of powerlessness and a lack of control over government decisions, has fuelled political polarization and inward-looking policy approaches.

“This is the 21st century. We are a globally very interdependent world, whether it is on trade, preventing the next pandemic or addressing climate change,” UNDP head Steiner said.

“What this report hones in on is that the price of populism and of radicalization, and this inward looking trend is essentially undermining our very capacity to reduce those risk to our individual countries and to us collectively as humanity,” he added.

This is particularly alarming in light of 2023’s record-breaking temperatures which highlight the immediate need for united action to tackle the climate crisis, combined with the new and fast-evolving technological frontier of Artificial Intelligence (AI) which has few regulatory guard rails.

Threat to the common wellbeing

Mr. Steiner further highlighted that in a world marked by increasing polarization and division, “neglecting to invest in each other poses a serious threat to our wellbeing and security”.

“Protectionist approaches cannot address the complex, interconnected challenges we face, including pandemic prevention, climate change, and digital regulation,” he said.

He added that interconnected problems require interconnected solutions.

“By adopting an opportunity-driven agenda that emphasizes the benefits of the energy transition and of Artificial Intelligence for human development, we have a chance to break through the current deadlock and reignite a commitment to a shared future.”

Country ranking

The 2023-24 Human Development Report identified Switzerland, Norway and Iceland leading the national human development indices, while Central African Republic (CAR), South Sudan and Somalia lagged the furthest behind.

The Democratic People’s Republic of Korea (more commonly known as North Korea) and Monaco were not ranked in the list of countries and economies.

• Human Development Report