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What Is the Difference Between an Abstract and a Thesis Statement?

How to Write a Thesis & Introduction for a Critical Reflection Essay

How to Write a Thesis & Introduction for a Critical Reflection Essay

College assignments, specifically the requirements when writing papers, can cause confusion for new students. Both forms of relaying information are utilized for different reasons but can be found within the same writing piece on occasion. Understanding the difference between two formats of information such as an abstract and thesis statement is important in professional writing at the college level. A strong thesis statement allows the reader to know what the stance of the writer is before reading through the full paper. An abstract allows the reader to understand at a glance what the full article is about.

An abstract is a short body of writing that is used to summarize a longer piece of writing. A dissertation for a doctoral program contains an abstract. The abstract information varies on the discipline that the writing addresses. In 1997, Philip Koopman from Carnegie Mellon University highlighted common considerations of an abstract to include the motivation, approach, problem statement, results and conclusion summarized into a brief document. The abstract is used to index the larger work or to simply describe the larger work. Abstracts allow researchers or readers to grasp the overall content of the full piece of writing within a paragraph or two.

Thesis Statement

A thesis statement is a claim by the writer that can be argued or disputed by others. The statement is typically one sentence but may contain more in rare circumstances. The sentence(s) will describe what the writer wants to specifically discuss about the central topic. The rule of thumb is not to state a fact but to take a position regarding the facts. Thesis statements appear in a variety of writing pieces from small writing assignments within a college course or a major submission for degree requirements.

Similarities

Although the thesis statement and abstract are different entities, they share a number of similarities. John December and Susan Katz who wrote for the Rensselaer Writing Center and the University of North Carolina highlight that both the abstract and thesis statement should be written after the significant body of the paper is complete. Both require significant research and consideration before formulation. It is also not uncommon to find both a thesis statement and abstract within the same writing piece.

Differences

The significant difference between an abstract and a thesis statement is the purpose behind each. While the abstract summarizes the important aspects of a complete writing piece, the thesis statement lays out only the position a writer is offering within the document. The abstract is longer in length and contains at least five factors regarding the writing it introduces. The thesis statement is short and contains one significant piece of information to inform the reader.

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  • Carnegie Mellon University; How to Write an Abstract; Philip Koopman; 1997
  • Harvard University Writing Center; Developing a Thesis; Maxine Rodburg et al., 1999

Steph Radabaugh has been writing on gardening and mental health care since 2005. Her articles have helped people create beautiful gardens and sparked the interest of state lawmakers in Iowa's health-care organizations. Radabaugh has a Master of Science in industrial organizational psychology and has pursued her Doctor of Philosophy in research psychology.

Writing an Abstract for Your Research Paper

Definition and Purpose of Abstracts

An abstract is a short summary of your (published or unpublished) research paper, usually about a paragraph (c. 6-7 sentences, 150-250 words) long. A well-written abstract serves multiple purposes:

  • an abstract lets readers get the gist or essence of your paper or article quickly, in order to decide whether to read the full paper;
  • an abstract prepares readers to follow the detailed information, analyses, and arguments in your full paper;
  • and, later, an abstract helps readers remember key points from your paper.

It’s also worth remembering that search engines and bibliographic databases use abstracts, as well as the title, to identify key terms for indexing your published paper. So what you include in your abstract and in your title are crucial for helping other researchers find your paper or article.

If you are writing an abstract for a course paper, your professor may give you specific guidelines for what to include and how to organize your abstract. Similarly, academic journals often have specific requirements for abstracts. So in addition to following the advice on this page, you should be sure to look for and follow any guidelines from the course or journal you’re writing for.

The Contents of an Abstract

Abstracts contain most of the following kinds of information in brief form. The body of your paper will, of course, develop and explain these ideas much more fully. As you will see in the samples below, the proportion of your abstract that you devote to each kind of information—and the sequence of that information—will vary, depending on the nature and genre of the paper that you are summarizing in your abstract. And in some cases, some of this information is implied, rather than stated explicitly. The Publication Manual of the American Psychological Association , which is widely used in the social sciences, gives specific guidelines for what to include in the abstract for different kinds of papers—for empirical studies, literature reviews or meta-analyses, theoretical papers, methodological papers, and case studies.

Here are the typical kinds of information found in most abstracts:

  • the context or background information for your research; the general topic under study; the specific topic of your research
  • the central questions or statement of the problem your research addresses
  • what’s already known about this question, what previous research has done or shown
  • the main reason(s) , the exigency, the rationale , the goals for your research—Why is it important to address these questions? Are you, for example, examining a new topic? Why is that topic worth examining? Are you filling a gap in previous research? Applying new methods to take a fresh look at existing ideas or data? Resolving a dispute within the literature in your field? . . .
  • your research and/or analytical methods
  • your main findings , results , or arguments
  • the significance or implications of your findings or arguments.

Your abstract should be intelligible on its own, without a reader’s having to read your entire paper. And in an abstract, you usually do not cite references—most of your abstract will describe what you have studied in your research and what you have found and what you argue in your paper. In the body of your paper, you will cite the specific literature that informs your research.

When to Write Your Abstract

Although you might be tempted to write your abstract first because it will appear as the very first part of your paper, it’s a good idea to wait to write your abstract until after you’ve drafted your full paper, so that you know what you’re summarizing.

What follows are some sample abstracts in published papers or articles, all written by faculty at UW-Madison who come from a variety of disciplines. We have annotated these samples to help you see the work that these authors are doing within their abstracts.

Choosing Verb Tenses within Your Abstract

The social science sample (Sample 1) below uses the present tense to describe general facts and interpretations that have been and are currently true, including the prevailing explanation for the social phenomenon under study. That abstract also uses the present tense to describe the methods, the findings, the arguments, and the implications of the findings from their new research study. The authors use the past tense to describe previous research.

The humanities sample (Sample 2) below uses the past tense to describe completed events in the past (the texts created in the pulp fiction industry in the 1970s and 80s) and uses the present tense to describe what is happening in those texts, to explain the significance or meaning of those texts, and to describe the arguments presented in the article.

The science samples (Samples 3 and 4) below use the past tense to describe what previous research studies have done and the research the authors have conducted, the methods they have followed, and what they have found. In their rationale or justification for their research (what remains to be done), they use the present tense. They also use the present tense to introduce their study (in Sample 3, “Here we report . . .”) and to explain the significance of their study (In Sample 3, This reprogramming . . . “provides a scalable cell source for. . .”).

Sample Abstract 1

From the social sciences.

Reporting new findings about the reasons for increasing economic homogamy among spouses

Gonalons-Pons, Pilar, and Christine R. Schwartz. “Trends in Economic Homogamy: Changes in Assortative Mating or the Division of Labor in Marriage?” Demography , vol. 54, no. 3, 2017, pp. 985-1005.

“The growing economic resemblance of spouses has contributed to rising inequality by increasing the number of couples in which there are two high- or two low-earning partners. [Annotation for the previous sentence: The first sentence introduces the topic under study (the “economic resemblance of spouses”). This sentence also implies the question underlying this research study: what are the various causes—and the interrelationships among them—for this trend?] The dominant explanation for this trend is increased assortative mating. Previous research has primarily relied on cross-sectional data and thus has been unable to disentangle changes in assortative mating from changes in the division of spouses’ paid labor—a potentially key mechanism given the dramatic rise in wives’ labor supply. [Annotation for the previous two sentences: These next two sentences explain what previous research has demonstrated. By pointing out the limitations in the methods that were used in previous studies, they also provide a rationale for new research.] We use data from the Panel Study of Income Dynamics (PSID) to decompose the increase in the correlation between spouses’ earnings and its contribution to inequality between 1970 and 2013 into parts due to (a) changes in assortative mating, and (b) changes in the division of paid labor. [Annotation for the previous sentence: The data, research and analytical methods used in this new study.] Contrary to what has often been assumed, the rise of economic homogamy and its contribution to inequality is largely attributable to changes in the division of paid labor rather than changes in sorting on earnings or earnings potential. Our findings indicate that the rise of economic homogamy cannot be explained by hypotheses centered on meeting and matching opportunities, and they show where in this process inequality is generated and where it is not.” (p. 985) [Annotation for the previous two sentences: The major findings from and implications and significance of this study.]

Sample Abstract 2

From the humanities.

Analyzing underground pulp fiction publications in Tanzania, this article makes an argument about the cultural significance of those publications

Emily Callaci. “Street Textuality: Socialism, Masculinity, and Urban Belonging in Tanzania’s Pulp Fiction Publishing Industry, 1975-1985.” Comparative Studies in Society and History , vol. 59, no. 1, 2017, pp. 183-210.

“From the mid-1970s through the mid-1980s, a network of young urban migrant men created an underground pulp fiction publishing industry in the city of Dar es Salaam. [Annotation for the previous sentence: The first sentence introduces the context for this research and announces the topic under study.] As texts that were produced in the underground economy of a city whose trajectory was increasingly charted outside of formalized planning and investment, these novellas reveal more than their narrative content alone. These texts were active components in the urban social worlds of the young men who produced them. They reveal a mode of urbanism otherwise obscured by narratives of decolonization, in which urban belonging was constituted less by national citizenship than by the construction of social networks, economic connections, and the crafting of reputations. This article argues that pulp fiction novellas of socialist era Dar es Salaam are artifacts of emergent forms of male sociability and mobility. In printing fictional stories about urban life on pilfered paper and ink, and distributing their texts through informal channels, these writers not only described urban communities, reputations, and networks, but also actually created them.” (p. 210) [Annotation for the previous sentences: The remaining sentences in this abstract interweave other essential information for an abstract for this article. The implied research questions: What do these texts mean? What is their historical and cultural significance, produced at this time, in this location, by these authors? The argument and the significance of this analysis in microcosm: these texts “reveal a mode or urbanism otherwise obscured . . .”; and “This article argues that pulp fiction novellas. . . .” This section also implies what previous historical research has obscured. And through the details in its argumentative claims, this section of the abstract implies the kinds of methods the author has used to interpret the novellas and the concepts under study (e.g., male sociability and mobility, urban communities, reputations, network. . . ).]

Sample Abstract/Summary 3

From the sciences.

Reporting a new method for reprogramming adult mouse fibroblasts into induced cardiac progenitor cells

Lalit, Pratik A., Max R. Salick, Daryl O. Nelson, Jayne M. Squirrell, Christina M. Shafer, Neel G. Patel, Imaan Saeed, Eric G. Schmuck, Yogananda S. Markandeya, Rachel Wong, Martin R. Lea, Kevin W. Eliceiri, Timothy A. Hacker, Wendy C. Crone, Michael Kyba, Daniel J. Garry, Ron Stewart, James A. Thomson, Karen M. Downs, Gary E. Lyons, and Timothy J. Kamp. “Lineage Reprogramming of Fibroblasts into Proliferative Induced Cardiac Progenitor Cells by Defined Factors.” Cell Stem Cell , vol. 18, 2016, pp. 354-367.

“Several studies have reported reprogramming of fibroblasts into induced cardiomyocytes; however, reprogramming into proliferative induced cardiac progenitor cells (iCPCs) remains to be accomplished. [Annotation for the previous sentence: The first sentence announces the topic under study, summarizes what’s already known or been accomplished in previous research, and signals the rationale and goals are for the new research and the problem that the new research solves: How can researchers reprogram fibroblasts into iCPCs?] Here we report that a combination of 11 or 5 cardiac factors along with canonical Wnt and JAK/STAT signaling reprogrammed adult mouse cardiac, lung, and tail tip fibroblasts into iCPCs. The iCPCs were cardiac mesoderm-restricted progenitors that could be expanded extensively while maintaining multipo-tency to differentiate into cardiomyocytes, smooth muscle cells, and endothelial cells in vitro. Moreover, iCPCs injected into the cardiac crescent of mouse embryos differentiated into cardiomyocytes. iCPCs transplanted into the post-myocardial infarction mouse heart improved survival and differentiated into cardiomyocytes, smooth muscle cells, and endothelial cells. [Annotation for the previous four sentences: The methods the researchers developed to achieve their goal and a description of the results.] Lineage reprogramming of adult somatic cells into iCPCs provides a scalable cell source for drug discovery, disease modeling, and cardiac regenerative therapy.” (p. 354) [Annotation for the previous sentence: The significance or implications—for drug discovery, disease modeling, and therapy—of this reprogramming of adult somatic cells into iCPCs.]

Sample Abstract 4, a Structured Abstract

Reporting results about the effectiveness of antibiotic therapy in managing acute bacterial sinusitis, from a rigorously controlled study

Note: This journal requires authors to organize their abstract into four specific sections, with strict word limits. Because the headings for this structured abstract are self-explanatory, we have chosen not to add annotations to this sample abstract.

Wald, Ellen R., David Nash, and Jens Eickhoff. “Effectiveness of Amoxicillin/Clavulanate Potassium in the Treatment of Acute Bacterial Sinusitis in Children.” Pediatrics , vol. 124, no. 1, 2009, pp. 9-15.

“OBJECTIVE: The role of antibiotic therapy in managing acute bacterial sinusitis (ABS) in children is controversial. The purpose of this study was to determine the effectiveness of high-dose amoxicillin/potassium clavulanate in the treatment of children diagnosed with ABS.

METHODS : This was a randomized, double-blind, placebo-controlled study. Children 1 to 10 years of age with a clinical presentation compatible with ABS were eligible for participation. Patients were stratified according to age (<6 or ≥6 years) and clinical severity and randomly assigned to receive either amoxicillin (90 mg/kg) with potassium clavulanate (6.4 mg/kg) or placebo. A symptom survey was performed on days 0, 1, 2, 3, 5, 7, 10, 20, and 30. Patients were examined on day 14. Children’s conditions were rated as cured, improved, or failed according to scoring rules.

RESULTS: Two thousand one hundred thirty-five children with respiratory complaints were screened for enrollment; 139 (6.5%) had ABS. Fifty-eight patients were enrolled, and 56 were randomly assigned. The mean age was 6630 months. Fifty (89%) patients presented with persistent symptoms, and 6 (11%) presented with nonpersistent symptoms. In 24 (43%) children, the illness was classified as mild, whereas in the remaining 32 (57%) children it was severe. Of the 28 children who received the antibiotic, 14 (50%) were cured, 4 (14%) were improved, 4(14%) experienced treatment failure, and 6 (21%) withdrew. Of the 28children who received placebo, 4 (14%) were cured, 5 (18%) improved, and 19 (68%) experienced treatment failure. Children receiving the antibiotic were more likely to be cured (50% vs 14%) and less likely to have treatment failure (14% vs 68%) than children receiving the placebo.

CONCLUSIONS : ABS is a common complication of viral upper respiratory infections. Amoxicillin/potassium clavulanate results in significantly more cures and fewer failures than placebo, according to parental report of time to resolution.” (9)

Some Excellent Advice about Writing Abstracts for Basic Science Research Papers, by Professor Adriano Aguzzi from the Institute of Neuropathology at the University of Zurich:

difference of thesis and abstract

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Frequently asked questions

What’s the difference between an abstract and a summary.

An abstract concisely explains all the key points of an academic text such as a thesis , dissertation or journal article. It should summarize the whole text, not just introduce it.

An abstract is a type of summary , but summaries are also written elsewhere in academic writing . For example, you might summarize a source in a paper , in a literature review , or as a standalone assignment.

All can be done within seconds with our free text summarizer .

Frequently asked questions: Working with sources

Synthesizing sources means comparing and contrasting the work of other scholars to provide new insights.

It involves analyzing and interpreting the points of agreement and disagreement among sources.

You might synthesize sources in your literature review to give an overview of the field of research or throughout your paper when you want to contribute something new to existing research.

You can find sources online using databases and search engines like Google Scholar . Use Boolean operators or advanced search functions to narrow or expand your search.

For print sources, you can use your institution’s library database. This will allow you to explore the library’s catalog and to search relevant keywords.

Lateral reading is the act of evaluating the credibility of a source by comparing it with other sources. This allows you to:

  • Verify evidence
  • Contextualize information
  • Find potential weaknesses

As you cannot possibly read every source related to your topic, it’s important to evaluate sources to assess their relevance. Use preliminary evaluation to determine whether a source is worth examining in more depth.

This involves:

  • Reading abstracts , prefaces, introductions , and conclusions
  • Looking at the table of contents to determine the scope of the work
  • Consulting the index for key terms or the names of important scholars

You might have to write a summary of a source:

  • As a stand-alone assignment to prove you understand the material
  • For your own use, to keep notes on your reading
  • To provide an overview of other researchers’ work in a literature review
  • In a paper , to summarize or introduce a relevant study

You can assess information and arguments critically by asking certain questions about the source. You can use the CRAAP test , focusing on the currency , relevance , authority , accuracy , and purpose of a source of information.

Ask questions such as:

  • Who is the author? Are they an expert?
  • Why did the author publish it? What is their motivation?
  • How do they make their argument? Is it backed up by evidence?

Critical thinking skills include the ability to:

  • Identify credible sources
  • Evaluate and respond to arguments
  • Assess alternative viewpoints
  • Test hypotheses against relevant criteria

Critical thinking refers to the ability to evaluate information and to be aware of biases or assumptions, including your own.

Like information literacy , it involves evaluating arguments, identifying and solving problems in an objective and systematic way, and clearly communicating your ideas.

It is important to find credible sources and use those that you can be sure are sufficiently scholarly .

  • Consult your institute’s library to find out what books, journals, research databases, and other types of sources they provide access to.
  • Look for books published by respected academic publishing houses and university presses, as these are typically considered trustworthy sources.
  • Look for journals that use a peer review process. This means that experts in the field assess the quality and credibility of an article before it is published.

In academic writing, the sources you cite should be credible and scholarly. Some of the main types of sources used are:

  • Academic journals: These are the most up-to-date sources in academia. They are published more frequently than books and provide cutting-edge research.
  • Books: These are great sources to use, as they are typically written by experts and provide an extensive overview and analysis of a specific topic.

Scholarly sources are written by experts in their field and are typically subjected to peer review . They are intended for a scholarly audience, include a full bibliography, and use scholarly or technical language. For these reasons, they are typically considered credible sources .

Popular sources like magazines and news articles are typically written by journalists. These types of sources usually don’t include a bibliography and are written for a popular, rather than academic, audience. They are not always reliable and may be written from a biased or uninformed perspective, but they can still be cited in some contexts.

There are many types of sources commonly used in research. These include:

  • Journal articles
  • Encyclopedias

You’ll likely use a variety of these sources throughout the research process , and the kinds of sources you use will depend on your research topic and goals.

You usually shouldn’t cite tertiary sources as evidence in your research paper, but you can use them in the beginning stages of the research process to:

  • Establish background information
  • Identify relevant keywords and terms
  • Familiarize yourself with current debates in your field

Use tertiary sources in your preliminary research to find relevant primary and secondary sources that you will engage with in more depth during the writing process .

What constitutes a tertiary source depends on your research question and how you use the source.

To determine whether a source is tertiary, ask:

  • Am I examining the source itself, or am I using it for background information?
  • Does the source provide original information ( primary ) or analyze information from other sources ( secondary )? Or does it consolidate information from other sources (tertiary)?

Primary sources provide direct evidence about your research topic (photographs, personal letters, etc.).

Secondary sources interpret and comment on information from primary sources (academic books, journal articles, etc.).

Tertiary sources are reference works that identify and provide background information on primary and secondary sources . They do not provide original insights or analysis.

A tertiary source may list, summarize , or index primary and secondary sources or provide general information from a variety of sources. But it does not provide original interpretations or analysis.

Some examples of tertiary sources include:

  • Bibliographies
  • Dictionaries

It can sometimes be hard to distinguish accurate from inaccurate sources , especially online. Published articles are not always credible and can reflect a biased viewpoint without providing evidence to support their conclusions.

Information literacy is important because it helps you to be aware of such unreliable content and to evaluate sources effectively, both in an academic context and more generally.

Information literacy refers to a broad range of skills, including the ability to find, evaluate, and use sources of information effectively.

Being information literate means that you:

  • Know how to find credible sources
  • Use relevant sources to inform your research
  • Understand what constitutes plagiarism
  • Know how to cite your sources correctly

When searching for sources in databases, think of specific keywords that are relevant to your topic , and consider variations on them or synonyms that might be relevant.

Once you have a clear idea of your research parameters and key terms, choose a database that is relevant to your research (e.g., Medline, JSTOR, Project MUSE).

Find out if the database has a “subject search” option. This can help to refine your search. Use Boolean operators to combine your keywords, exclude specific search terms, and search exact phrases to find the most relevant sources.

Proximity operators are specific words used alongside your chosen keywords that let you specify the proximity of one keyword in relation to another.

The most common proximity operators include NEAR ( N x ), WITHIN ( W x ), and SENTENCE .

Each proximity operator has a unique function. For example, N x allows you to find sources that contain the specified keywords within a set number of words ( x ) of each other.

Boolean operators are specific words and symbols that you can use to expand or narrow your search parameters when using a database or search engine.

The most common Boolean operators are AND , OR , NOT or AND NOT , quotation marks “” , parentheses () , and asterisks * .

Each Boolean operator has a unique function. For example, the Boolean operator AND will provide search results containing both/all of your keywords.

A Boolean search uses specific words and symbols known as Boolean operators (e.g., AND , OR ) alongside keywords to limit or expand search results. Boolean searches allow you to:

  • Prioritize keywords
  • Exclude keywords
  • Search exact keywords
  • Search variations of your keywords

The CRAAP test is an acronym to help you evaluate the credibility of a source you are considering using. It is an important component of information literacy .

The CRAAP test has five main components:

  • Currency: Is the source up to date?
  • Relevance: Is the source relevant to your research?
  • Authority: Where is the source published? Who is the author? Are they considered reputable and trustworthy in their field?
  • Accuracy: Is the source supported by evidence? Are the claims cited correctly?
  • Purpose: What was the motive behind publishing this source?

To avoid plagiarism when summarizing an article or other source, follow these two rules:

  • Write the summary entirely in your own words by paraphrasing the author’s ideas.
  • Cite the source with an in-text citation and a full reference so your reader can easily find the original text.

A summary is always much shorter than the original text. The length of a summary can range from just a few sentences to several paragraphs; it depends on the length of the article you’re summarizing, and on the purpose of the summary.

A summary is a short overview of the main points of an article or other source, written entirely in your own words. Want to make your life super easy? Try our free text summarizer today!

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Abstract vs Introduction – Differences Explained

Dr Harry Hothi

  • By Dr Harry Hothi
  • August 29, 2020

Abstract vs Introduction

Any academic write up of a research study or project will require the inclusion of an abstract and introduction. If you pick up any example of a research paper for a journal, dissertation for a Masters degree or a PhD thesis, you’ll see the abstract, followed by the introduction. At first glance you’ll notice that the abstract is much shorter in length, typically a quarter or third of a page of A4. The introduction on the other hand is longer, taking up at least an entire page of writing.

Beyond the length, what are the differences in the content of the two sections? In short, the abstract is a summary of the entire study, describing the context, research aim, methods, results and key conclusions. The introduction gives more detail on the background of the subject area, the motivation for the study and states the aims and objectives.

Read on to learn more.

What is an Abstract?

The main purpose of an abstract is to succinctly give the reader an overview of why the study was needed, what the purpose of the project was, the research question, the key materials and methods that were used, the main results and what conclusions were drawn from this. Many abstracts also conclude with a sentence on the significance or impact of the research. These are sometimes also referred to as an executive summary.

The reader should have an understanding of the paper topic and what the study was about from the abstract alone. He or she can then decide if they want to read the paper or thesis in more detail.

Abstracts are particularly useful for researchers performing a literature review, which involves critically evaluating a large number of papers. Reading the abstract enables them to quickly ascertain the key points of a paper, helping them identify which ones to read in full.

Abstracts are also very important for learning more about the work performed in papers that are hidden behind academic journal paywalls (i.e. those that are not open access). Abstracts are always made freely available, allowing a researcher to understand the context and main point of the work and then decide if it’s worth paying to read the entire paper. These are sometimes referred to as the ‘de facto introduction’ to the research work as it’s usually the first section people read about your study, after the title page.

How do you Write an Abstract?

The majority of academic journals place a limit of 250 words on the length of the abstract in papers submitted to them. They do this to ensure you give a quick overview of only the most important information from your study, helping the reader decide if they want to read the whole paper too. Make sure you double check the specific requirements of your target journal before you start writing.

Universities or other academic institutions often allow up to 500 words for an abstract written for a doctoral thesis.

Abstracts can be either structured or unstructured in the way they are formatted. A structured abstract contains separate headings to guide the reader through the study. Virtually all STEM journals will require this format be used for a researcharticle. The exact names used for each heading can differ but generally there are defined as:

  • Background. This is also sometimes called the Introduction. This section should give an overview of what is currently known about the research topic and what the gap in knowledge is. The reader should understand the problem your research will address; i.e. what was your study needed. Don’t include any references or citations in the abstract.
  • Aim and Objective. Give a brief explanation of what the study intended to achieve and state the research question or questions that you proposed. Some authors also include the hypothesis here too.
  • Materials and Methods. Use the methods section to describe what you investigated, what the study design was and how you carried it out.
  • Results. Give an overview of your key findings.
  • Discussion and Conclusion. Some journals may ask for these two terms to be used as separated headings. These sections explain why you may have obtained the results that you did, what this means and what the significance or impact of this might be.

An informative abstract should provide a concise summary of all the important points in your research project, including what the central question relating to the subject matter was. Make it interesting to read too; this may be the difference between your abstract being accepted or rejected if you decide to submit it to an upcoming conference. Reviewers for large conferences often have to read hundreds of abstracts so make sure yours stands out by being easy to read and follow.

It’s less common that you’ll be asked to write an unstructured abstract. If you are, however, be aware that the key difference is that an unstructured abstract does not include separate headings. The flow of the abstract text should still follow the 5 points listed above but they should all be written within one long paragraph.

What is the Introduction?

The introduction section is the first main written work presented after the abstract in your paper manuscript or thesis. In a research paper, the introduction will be followed by a section on the materials and methods. In thesis writing, the introduction will be followed by the literature review .

The main aim of introduction writing is to give the reader more detail on the background information of the study. It should include a brief description of the key current knowledge that exists based on the work presented in previous literature and where the gaps in knowledge are. The introduction should convey why your research was needed in order to add new understanding to your subject area. Make sure that you reference all the publications that you refer to.

When writing an introduction for a scientific paper you should also include the aim of your study and the research objectives/questions. If relevant, also include your hypothesis or (null hypothesis).

How do you Structure the Introduction?

The general rule of thumb for a research paper is to use size 12 Times New Roman font, double spaced. Write four separate paragraphs which together are no longer than one page in length. Structure the four paragraphs as follows:

  • Set the context of the research study, giving background information about the subject area.
  • Describe what is currently know from previously published work and what is poorly understood – i.e. the research gap.
  • Explain how addressing this gap in knowledge is important for your research field – i.e. why this study is needed.
  • Give a broad overview of the aims, objectives and hypothesis of the study.

You should not describe the research method used in this section nor any results and conclusions.

You should be clear now on what the differences between an abstract vs introduction are. The best way to improve your academic writing skills for these are to read other examples from other  research articles and start writing!

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Abstract vs. Introduction—What’s the Difference?

Abstract vs. Introduction—What’s the Difference?

3-minute read

  • 21st February 2022

If you’re a student who’s new to research papers or you’re preparing to write your dissertation , you might be wondering what the difference is between an abstract and an introduction.

Both serve important purposes in a research paper or journal article , but they shouldn’t be confused with each other. We’ve put together this guide to help you tell them apart.

What’s an Introduction?

In an academic context, an introduction is the first section of an essay or research paper. It should provide detailed background information about the study and its significance, as well as the researcher’s hypotheses and aims.

But the introduction shouldn’t discuss the study’s methods or results. There are separate sections for this later in the paper.

An introduction must correctly cite all sources used and should be about four paragraphs long, although the exact length depends on the topic and the style guide used.

What’s an Abstract?

While the introduction is the first section of a research paper, the abstract is a short summary of the entire paper. It should contain enough basic information to allow you to understand the content of the study without having to read the entire paper.

The abstract is especially important if the paper isn’t open access because it allows researchers to sift through many different studies before deciding which one to pay for.

Since the abstract contains only the essentials, it’s usually much shorter than an introduction and normally has a maximum word count of 200–300 words. It also doesn’t contain citations.

The exact layout of an abstract depends on whether it’s structured or unstructured. Unstructured abstracts are usually used in non-scientific disciplines, such as the arts and humanities, and usually consist of a single paragraph.

Structured abstracts, meanwhile, are the most common form of abstract used in scientific papers. They’re divided into different sections, each with its own heading. We’ll take a closer look at structured abstracts below.

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Structuring an Abstract

A structured abstract contains concise information in a clear format with the following headings:

●  Background: Here you’ll find some relevant information about the topic being studied, such as why the study was necessary.

●  Objectives: This section is about the goals the researcher has for the study.

●  Methods: Here you’ll find a summary of how the study was conducted.

●  Results: Under this heading, the results of the study are presented.

●  Conclusions: The abstract ends with the researcher’s conclusions and how the study can inform future research.

Each of these sections, however, should contain less detail than the introduction or other sections of the main paper.

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Writing abstracts and summaries, abstract or summary what’s the difference.

Adapted from Wallwork, A. English for Writing Research Papers . DOI 10.1007/978-1-4419-7922-3_12, © Springer Science+Business Media, LLC 2011.

How do I know which type to choose?

Follow the relevant guidelines provided by the journal, the conference organisers, or in the case of your thesis, the Graduate Research Office.

Common complaints about abstracts from HDR examiners/peer reviewers:

The author has written more than 400 words in the abstract and yet has only described the context but not the results of his/her work and the implications. The abstract doesn’t do justice to what the paper is about. It is too abstruse and dense. It is only understandable after the paper has been read. It should be understandable to a general economics-literate audience, not just to those few researchers within the author’s very specific field. The authors have failed to state why the scientific community should be interested in their work nor what value is being added to what is already known.

Workshop: Abstracts

The following video explains how to develop a discipline-relevant abstract .

Activity: Abstract analysis

This PDF contains different abstract samples  for you to analyse in preparation for writing your own.

Summary template: Nature journal

This summary template   comes from the website of high ranking science journal Nature.

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  • Manuscript Preparation

Differentiating between the abstract and the introduction of a research paper

  • 3 minute read
  • 41.6K views

Table of Contents

While writing a manuscript for the first time, you might find yourself confused about the differences between an abstract and the introduction. Both are adjacent sections of a research paper and share certain elements. However, they serve entirely different purposes. So, how does one ensure that these sections are written correctly?

Knowing the intended purpose of the abstract and the introduction is a good start!

What is an abstract?

An abstract is a very short summary of all the sections of your research paper—the introduction, objectives, materials and methods, results, and conclusion. It ends by emphasising the novelty or relevance of your study, or by posing questions for future research. The abstract should cover all important aspects of the study, so that the reader can quickly decide if the paper is of their interest or not.

In simple terms, just like a restaurant’s menu that provides an overview of all available dishes, an abstract gives the reader an idea of what the research paper has to offer. Most journals have a strict word limit for abstracts, which is usually 10% of the research paper.

What is the purpose of an abstract?

The abstract should ideally induce curiosity in the reader’s mind and contain strategic keywords. By generating curiosity and interest, an abstract can push readers to read the entire paper or buy it if it is behind a paywall. By using keywords strategically in the abstract, authors can improve the chances of their paper appearing in online searches.

What is an introduction?

The introduction is the first section in a research paper after the abstract, which describes in detail the background information that is necessary for the reader to understand the topic and aim of the study.

What is the purpose of an introduction?

The introduction points to specific gaps in knowledge and explains how the study addresses these gaps. It lists previous studies in a chronological order, complete with citations, to explain why the study was warranted.

A good introduction sets the context for your study and clearly distinguishes between the knowns and the unknowns in a research topic.

Often, the introduction mentions the materials and methods used in a study and outlines the hypotheses tested. Both the abstract and the introduction have this in common. So, what are the key differences between the two sections?

Key differences between an abstract and the introduction:

  • The word limit for an abstract is usually 250 words or less. In contrast, the typical word limit for an introduction is 500 words or more.
  • When writing the abstract, it is essential to use keywords to make the paper more visible to search engines. This is not a significant concern when writing the introduction.
  • The abstract features a summary of the results and conclusions of your study, while the introduction does not. The abstract, unlike the introduction, may also suggest future directions for research.
  • While a short review of previous research features in both the abstract and the introduction, it is more elaborate in the latter.
  • All references to previous research in the introduction come with citations. The abstract does not mention specific studies, although it may briefly outline previous research.
  • The abstract always comes before the introduction in a research paper.
  • Every paper does not need an abstract. However, an introduction is an essential component of all research papers.

If you are still confused about how to write the abstract and the introduction of your research paper while accounting for the differences between them, head over to Elsevier Author Services . Our experts will be happy to guide you throughout your research journey, with useful advice on how to write high quality research papers and get them published in reputed journals!

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Alexis Jenkins definitely is very active from the start. Sports have always been her passion; growing up, you could always catch her outside at the softball field playing with her high school, tournament team, or family. This all was until she had an almost career-ending injury occur not just once but twice. Luckily, she could continue to play two years of college softball, but she always wondered why tearing your ACL, also known as your Anterior Cruciate Ligament, was such a big deal. Now years later, she is a Senior here at Millersville studying Sports Journalism. After graduation, she plans to work her way into the ESPN world to eventually become an ESPN Broadcast Journalist.

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Main Differences Between a Summary and an Abstract

Writing for an abstract may have similar steps to writing for a summary, but they have different objectives and requirements. While an abstract is a short, descriptive paragraph overviewing your entire paper from introduction to the findings or future studies, a summary includes your entire paper and its visuals, just in a shorter length and more concise than it’s original document. This article will discuss the key parts to include in an abstract and a summary.

The abstract should summarize the main points of your paper without specific detail. So it should communicate, if relevant: main question of your paper, methods, major results or findings, the importance of results or findings, and how they shape a theory or answer your question.

-Start with the main point: The beginning statement should describe the main point you are trying to communicate to the reader. Sometimes, this may be the thesis, or it may be the research topic, all depending on what kind of paper you are writing.

-Keep it concise: This is meant to briefly discuss your article, and only talk about the main points between the introduction, body, and conclusion.

-Remember the length: This abstract is meant to be a paragraph; therefore, each piece of information given in the summary should be short, key parts of the article.

-Follow the same order: Make sure your abstract follows the same order that your paper is written in.

-Keep it to the facts: Keep in mind to only use factual statements or observations and avoid using opinions, repetition, and any ‘fluff’ content.

-Create an effective ending: The last sentence should be able to effectively wrap up the findings of the article.

On the other hand, the summary is a much longer version of the abstract, containing more details, visuals, and opinions.

-Follow the same order: Again, this should follow the same order as your paper.

-Keep in mind the length: Remember the length that the publication is asking your article to be at. With publishing for MiMJ , we are asking for a 2-3 page, 1000 word limit. With this, try to be concise and only have information that is key to conveying your message in your paper.

-Facts and opinions allowed: Unlike writing for an abstract, you are not limited to what kind of information you will be giving; you can include any fact, opinion, or finding, as long as it is a key piece of information that still allows your paper to be concise.

-You can use visuals: The use of visuals is welcomed while writing your summary. However, make sure they are necessary to convey your message to the reader due to the fact that summaries need to be concise (do you think I mentioned that your summary needs to be concise enough?). Secondly, make sure each visual that is used is explained well, as summaries are for a general audience.

-Remember the format: You still have to organize your paper in the format that is required by the publication you wish to publish your article with. With publishing with MiMJ , we require your paper to be written in 7th edition APA format.

-Remember your citations: As any paper would include, citations are an important way to credit the sources you used to create your wonderful paper. In addition, make sure your citations abide by the format you are using. This also ties in having a literature cited page as well.

In conclusion, your summary should be a shorter, more concise version of your original paper that still includes all important information and effectively translates the message from your paper. Whereas the abstract should be a short paragraph that presents all key facts and information. In the future, try to refer to this post as a mental checklist after writing any abstract or summary, or even while you are writing!

Furthermore, have you previously used any of these ideas while writing your summary? Are there any other tips that have helped you while writing a summary?

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3 comentarios

This is a great explanation of Abstract and Summary.

This is very helpful information!

I think this is a very interesting paper discussing the differences between the two formats! Does anyone know if certain publications will prefer one type over another (ex: an abstract over a summary)? Or is it considered industry standard to include both?

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Abstract Vs Introduction: Key Similarities and Differences

Abstract vs Introduction

Is an abstract the same as an introduction? This is one of the questions we receive most frequently, so we thought it would be a good idea to write an article about the abstract vs introduction problem. Most students don’t know how to differentiate between the two, especially if they are new to academic writing. Even though the two things are somewhat similar, there is at least one major difference between introduction and abstract. In this article, we will discuss the similarities and differences between the two. What is the difference between an abstract and an introduction? Let’s find out!

The Abstract Vs Introduction Problem

Introduction vs abstract: which one does what? Because many professors don’t explain these two terms to their students, it’s easy to confuse them. We consider that this is not the students’ fault. If they don’t know the difference between an abstract and an introduction, it’s easy to make a grave mistake. Of course, you will get penalized harshly for this. This blog post aims to provide information about abstract vs introduction scientific paper writers need to make sure they don’t get an F on their next essay.

Abstract and Introduction: What Are They?

So, let’s discuss abstract vs introduction APA style. An abstract is basically a summary of a complex paper (such as a thesis or a research paper).

The abstract summarizes all the different parts of the paper, including the research problem, the objectives, the methods, the results, and the conclusion. After reading the abstract, the reader should know exactly what the paper is about and how it is structured. The length of an abstract is around 250-300 words. The introduction, on the other hand, is there to give your readers an idea of what you are about to talk about and introduce your thesis statement.

It can contain a bit of background information, but it does not delve into the specifics of your research methods or results. Also, the introduction does not discuss the conclusion of the paper in any way.

The Key Difference Between Abstract and Introduction

OK, but what is the major difference between abstract and introduction? In simple terms, the abstract is a summary of the entire research paper. It briefly discusses the methods, results and conclusion. The introduction, on the other hand, is there to entice the reader to read the entire paper. It discusses just the background of the problem and the objectives of the paper. You will never see the conclusion being discussed in an introduction.

Is an APA abstract vs introduction different from MLA or other types of academic writing? No, the abstract and the introduction are just as different regardless of the academic writing style. You should never confuse one for the other because the consequences can be a rejected paper or at the very least a very low grade.

Introduction vs Abstract: The Similarities

Now that you know the main difference between an abstract and introduction, it’s time to talk about similarities. This should help you avoid any confusion:

  • Both the introduction and the abstract are placed at the beginning of a research paper. In fact, an abstract can be considered a de-facto introduction.
  • Both the abstract and the introduction are there to provide some information about the subject and about the objectives of your research paper.
  • Both can be used as a way to attract the interest of a reader.

However, this is where the similarities end. Never assume that you can write an introduction in place of an abstract. Of course, you can’t write an abstract in place of an introduction either. This is the information about abstract vs introduction lab report writers need to know before they start writing their first paper. We know that sometimes writing an abstract can be more difficult than the introduction to abstract algebra in high school. However, with practice, you will quickly get the hang of it.

Abstract and Introduction Examples

To help you understand the meaning and role of an abstract better, we have written an example abstract for you and broken it down into pieces:

As of 2023, residual herbicide that is accumulating in certain crops is posing a growing threat to the rice-wheat rotation in northern India. (The background part) When it comes to pesticides and pesticide metabolites, green manure has been shown to stimulate ample co-mineralization. By incorporating it into the soil, the effects of the herbicide residue can be mitigated. (The objectives part) During a three-year study at the North Indian Wheat Research Institute, Azolla Pinata and A. Carolingiana have been used as green manure. The effects of the green manure on the Propanil and Buthachlor herbicides has been evaluated, as well as the mineralization and co-metabolization of the herbicides, using a process known as liquid chromatography. (The material and methods part) Initial results indicate that Azolla Pinata caused the Propanil herbicide to co-mineralize in 14 days. However, the green manure did not have the intended effect on the Buthachlor herbicide during the study. (The findings part) After analyzing the findings of the study, we can say for certain that Azolla Pinata used as green manure can prevent residual Propanil accumulation. (The conclusion part)

An example introduction for the paper would look something like this:

Residual herbicides are posing a growing threat to the systems of rice-wheat rotation in Northern India. According to a recent study by the North Indian Wheat Research Institute, Azolla Pinata is able to co-mineralize some herbicides. Understanding the process by which this happens is important for the future of Indian rice and wheat crops. This research paper aims to answer the following question: how does green manure co-mineralize certain herbicides? We will first analyze the soil and the herbicide accumulation, then we will discuss the effects of green manure, and finally we will analyze the potential applications.

Need Assistance?

Abstract versus introduction: I still don’t understand the difference! No problem, you are certainly not the only one. Many students are emailing us to get more information about these two important parts of their research papers. Instead of struggling to write something you don’t understand, why don’t you get some one on one help from our academic writing experts? In case you don’t know how to write the abstract or are struggling to write an excellent introduction for your paper, we can help you.

We can not only write you an abstract introduction, but also help you with the research and analysis part of your paper. It goes without saying that our writers and editors can also write your paper from scratch from start to finish. You will get an awesome essay that will thrill your professor. Getting a top grade is now easier than ever with our help.

We know that you are probably reluctant to get help from an online academic writing service. However, we can assure you that our experts will do a great job. All our papers are 100% original, written from scratch. We do not sell pre-written papers, period. And remember, getting quality assistance with your introduction and abstract is just one message away. What are you waiting for?

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Difference Between Writing An Abstract And A Synopsis For PhD Thesis

  • Difference Between Writing An Abstract

By AnkitJain Category : PhD Synopsis

This is not something for us to tell, everyone already knows that a doctoral degree and a successful PhD research serve as the highest academic qualifications in a subject area. This means it has to be as perfect as it can be.

This is why it is important to understand the basics of developing a PhD thesis which brings us to one of the most important factors of a thesis; that is, writing the abstract and thesis synopsis.

A lot of PhD aspirants often struggle with the difference in writing an abstract and a synopsis. Here, we have enlisted a few points which will help you in understanding the difference between writing an abstract and synopsis for PhD Thesis .

What Is An Abstract?

Sticking to the point, an abstract is simply a short (ranging from 200-300 words) overview of the PhD thesis which is developed for the readers, audience, future researchers, and sometimes even for your future job applications, where the reader does not have much time to go through your entire thesis to understand what the research is about.

The abstract must only contain the highlights of the PhD thesis, like:

  • the research introduction
  • the research purpose
  • the problem statement
  • the research methodology and framework
  • the research findings
  • the result and conclusion

Now, you see, to include all these points in a 200-300 words short paragraph or roughly one page worth of content, the abstract only has 2-3 lines dedicated to each section. It helps the readers and audience to evaluate whether the PhD thesis focuses on the things they are looking into or not.

What Is A Thesis Synopsis?

A PhD thesis synopsis is also a summarized version of the complete thesis research but it is much longer and detailed than the abstract of the thesis. In fact, in some cases, the thesis synopsis might also include the abstract of the thesis, if the university guidelines mention it.

A synopsis writing strictly include the following areas:

  • the research title and topic introduction
  • the research requirements
  • the literature review
  • the research gap and problem statement
  • the research methodology 
  • the research significance, scope and objectives
  • the expected budget and deadline of the research

A PhD thesis synopsis is also known as proposal because it proposes the idea of the researcher to the research committee. It is important to understand that synopsis, thus, needs to be well-curated in order to get the acceptance for conducting the whole research.

Difference Between Thesis Abstract And Synopsis

To keep it easily interpretable and straightforward, we have divided the differences in points on the basis of which you can deduct the basic differences between the two.

An abstract is written after the PhD thesis has been developed as it includes the result section as well and it needs to be added with the thesis while submitting it to the research committee or sending it to get published.

Whereas, a thesis synopsis needs to be written before the thesis development and must receive the acceptance by the concerned authorities in order to get the approval for the research conduct.

Significance:

The abstract is mostly significant in boosting the career and is more prominent for the later stages that come after the doctoral degree. As in getting a job or publishing the research where the editors and viewers go through the abstract first because of the time shortage.

As for the synopsis, it is more important for academia and shows the ideas and perceptions of the young scholars.

The abstract is usually written in one of two paragraphs and appears first in the PhD thesis; whereas, the synopsis contains different headlines just like the different chapters in PhD thesis writing to clearly discuss all those areas and is not connected with the PhD thesis but is submitted separately.

Inclusions:

Other than the brief introduction and highlights of the PhD thesis, the abstract also talks about the result. The main focus remains on giving the complete overview of the research. However, the synopsis writing does not include the results and conclusions. It mainly focuses on the importance of the research and the course of development providing a framework to the research that needs to be conducted.

A smart person once said “if you want a thing done well, then do it yourself”, but we say when you can get the better work, then don’t settle for anything less that can affect your PhD research and academic career in one blow.

A lot of scholars make mistakes when they end up writing the summary of synopsis in the abstract considering it right. Having errors in complex areas can still be avoided considering the overall research, but having errors in the basics may portray you as ignorant in regards to your study.

For consultancy and any PhD thesis guidance services, get in touch with our teams of experts or leave your query and we will call you back.

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Abstract Vs. Introduction — Do you know the difference?

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Ross wants to publish his research. Feeling positive about his research outcomes, he begins to draft his manuscript. After completing the abstract, he proceeds to write the introduction. That’s when he pauses in confusion. Do the abstract and introduction mean the same? How is the content for both the sections different?

This is a dilemma faced by several young researchers while drafting their first manuscript. An  abstract  is similar to a summary except that it is more concise and direct. Whereas, the  introduction  section of your paper is more detailed. It states why you conducted your study, what you wanted to accomplish, and what is your hypothesis.

This blog will allow us to learn more about the difference between the abstract and the introduction.

What Is an Abstract for a Research Paper?

An abstract provides the reader with a clear description of your research study and its results without the reader having to read the entire paper. The details of a study, such as precise methods and measurements, are not necessarily mentioned in the abstract. The abstract is an important tool for researchers who must sift through hundreds of papers from their field of study.

The abstract  holds more significance  in articles without open access. Reading the abstract would give an idea of the articles, which would otherwise require monetary payment for access. In most cases, reviewers will read the abstract to decide whether to continue to review the paper, which is important for you.

Your abstract should begin with a background or objective to clearly state why the research was done, its importance to the field of study, and any previous roadblocks encountered. It should include a very concise version of your methods, results, and conclusions but no references. It must be brief while still providing enough information so that the reader need not read the full article. Most journals ask that the abstract be no more than 200–250 words long.

Format of an Abstract

There are two general   formats — structured and unstructured. A  structured abstract   helps the reader find pertinent information  very quickly. It is divided into sections clearly defined by headings as follows:

  • Background : Latest information on the topic; key phrases that pique interest (e.g., “…the role of this enzyme has never been clearly understood”).
  • Objective : The research goals; what the study examined and why.
  • Methods : Brief description of the study (e.g., retrospective study).
  • Results : Findings and observations.
  • Conclusions : Were these results expected? Whether more research is needed or not?

Authors get tempted to write too much  in an abstract but it is helpful to remember that there is usually a maximum word count. The main point is to relay the important aspects of the study without sharing too many details so that the readers do not have to go through the entire manuscript text for finding more information.

The  unstructured abstract  is often used in fields of study that do not fall under the category of science. This type of abstracts does not have different sections. It summarizes the manuscript’s objectives, methods, etc., in one paragraph.

Related: Create an impressive manuscript with a compelling abstract.   Check out these resources and improve your abstract writing process!

Lastly, you must check the author guidelines of the target journal. It will describe the format required and the maximum word count of your abstract.

What Is an Introduction?

Your introduction is the first section of your research paper . It is not a repetition of the abstract. It does not provide data about methods, results, or conclusions. However, it  provides more in-depth information  on the background of the subject matter. It also explains your hypothesis , what you attempted to discover, or issues that you wanted to resolve. The introduction will also explain if and why your study is new in the subject field and why it is important.

It is often a good idea to wait until the rest of the paper is completed before drafting your introduction. This will help you to stay focused on the manuscript’s important points. The introduction, unlike the abstract, should contain citations to references. The information will help guide your readers through the rest of your document. The key tips for writing an effective introduction :

  • Beginning:  The importance of the study.
  • Tone/Tense:  Formal, impersonal; present tense.
  • Content:  Brief description of manuscript but without results and conclusions.
  • Length:  Generally up to four paragraphs. May vary slightly with journal guidelines.

Abstract

Once you are sure that possible doubts on the difference between the abstract and introduction are clear, review and submit your manuscript.

What struggles have you had in writing an abstract or introduction? Were you able to resolve them? Please share your thoughts with us in the comments section below.

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Insightful and educating Indeed. Thank You

Quite a helpful and precise for scholars and students alike. Keep it up…

thanks! very helpful.

thanks. helped

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Greeting from Enago Academy! Thank you for your positive comment. We are glad to know that you found our resources useful. Your feedback is very valuable to us. Happy reading!

Really helpful as I prepare to write the introduction to my dissertation. Thank you Enago Academy

This gave me more detail finding the pieces of a research article being used for a critique paper in nursing school! thank you!

The guidelines have really assisted me with my assignment on writing argument essay on social media. The difference between the abstract and introduction is quite clear now for me to start my essay…thank you so much…

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Difference Between Abstract and Introduction

abstract vs introduction

On the other hand, the abstract is like a short summary of an academic article or research paper, which discusses the purpose of the study and the outcome of the research. It usually summarizes the research topic, questions, participants, methods, outcome, data collected, analysis and conclusions. The article excerpt given hereunder discusses the difference between abstract and introduction.

Content: Abstract Vs Introduction

Comparison chart, definition of abstract.

An abstract can be described as a concise summary, often found in research work like thesis, dissertations, research articles, review, etc. which helps the reader to have an instant idea of the main purpose of the work. It is about a paragraph long of 150 to 250 words in general.

The information contained in the abstract should be sufficient enough to help the readers judge the nature and importance of the topic, the reasonableness of the strategy used in the investigation, nature of results and conclusions.

An abstract serves a number of purposes such as it allows the readers to get the gist of your paper, so as to decide whether to go through with the rest of the work. It is usually written after the writing of the paperwork is over and that too in the past tense.

An abstract rolls all the important information of the work into a single page, such as the context, general topic, central questions, problem under study, main idea, previous research findings, reasons, research methodology, findings, results, arguments, implications, conclusion and so on. To create an abstract one should pick the main statements from the above-mentioned sections, to draft an abstract.

Types of Abstract

  • Descriptive Abstract : It briefly describes the abstract and the length is usually 100-200 words. It indicates the type of information contained in the paper, discusses the purpose of writing, objectives and methods used for research.
  • Informative Abstract : As the name suggests, it is a detailed abstract which summarizes all the important points of the study. It includes results and conclusions, along with the purpose, objective, and methods used.

Definition of Introduction

Introduction means to present something to the readers, i.e. by giving a brief description or background information of the document. It is the first and foremost section which expresses the purpose, scope and goals, concerning the topic under study. As an introduction gives an overview of the topic, it develops an understanding of the main text.

An introduction is a gateway to the topic, as it is something which can create interest in the readers to read the document further. It is the crux of the document, which states what is to be discussed in the main body.

Elements of Introduction

An introduction has four basic elements namely: hook, background information, connect and thesis statement.

  • Hook is the preliminary sentence of the introduction which is used to fasten the attention of the readers, and so it has to be interesting, attention-grabbing, and readable of course, so as to stimulate the readers to read the complete text.
  • Background Information is the main part of the introduction, which presents the background of the research topic, including the problem under study, real-world situation, research questions, and a sneak peek of what the readers can expect from the main body.
  • Connect , is a simple line which is used to link or say relate the background information with the research statement, by using words ideas or phrases, so as to ensure the flow and logic of writing the text.
  • Thesis statement is the central point of the argument, which is usually a single sentence, whose points of evidence are to be talked about in the following text, i.e. the main body.

Key Differences Between Abstract and Introduction

The difference between abstract and introduction are discussed in the points:

  • An abstract is a concise and accurate representation which gives an overview of the main points from the entire document. On the other hand, Introduction is the first section which makes the reader aware of the subject, by giving a brief description of the work, i.e. why the research is needed or important.
  • While an abstract will give you an immediate overview of the paper, the introduction is the initial exposure to the subject under study.
  • An abstract reports key points of the research, as well as it states why the work is important, what was the main purpose of research, what is the motivation behind choosing the subject, what you learned from the research, what you found out during the research and what you concluded, in a summarized way. As against, an introduction presents a direction to understand what exists in the upcoming portion of the document or book.
  • As an abstract has its own introduction, main body and conclusion, it is a standalone document which summarizes the result of the findings and not just the list of topics discussed. As against, the introduction is not a standalone document or piece.
  • The main purpose of an abstract is to provide a succinct summary of the research. Conversely, introduction aims at convincing the reader about the need for the research.
  • An abstract contains the purpose, problem, methods used, result and conclusion. On the contrary, the introduction includes a hook, background information, connect and thesis statement.
  • While abstract is found in a research paper, thesis and dissertations, the introduction is found in a wide range of texts.

An abstract gives a preview of the work, outlines the main points and helps the audience in decision making, i.e. whether they want to read the complete text or not. On the other hand, an introduction is the very first section of the work, which clarifies the purpose of writing.

Without an abstract and introduction, the readers might not be able to know what the work contains and what is the reason or motivation behind the research. So, these two are like thread which goes through the writing and creates an understanding in the reader about the topic under study. While writing these two, one should ensure that they accurately reflect what you cover in the document or book.

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difference of thesis and abstract

Journal of Materials Chemistry C

Nonvolatile electric-field control of topological phase transition in the two-dimensional ferroelectric heterostructure.

Discovery and design of materials with the coexistence and coupling of different functional properties is extremely attractive for both fundamental physics and technical applications. In this work we proposed a strategy to realize the coexistence of ferroelectricity, magnetism and topological order in a two-dimensional van der Waals heterostructure composed of a ferroelectric material α-In2Se3 and a topological hydrogenated germanene. More importantly, we found the strong coupling of the topological electronic structure and ferroelectric order. Transition from a normal semiconductor to a quantum anomalous Hall insulator can be switched by reversing the polarization direction of α-In2Se3. Topological phase transition mechanism is revealed by the interfacial charge transfer and energy band alignment. The difference in energy band alignment stems from the difference of interfacial potential energy for two opposite ferroelectric phases. So, ferroelectric heterostructure engineering is an effective way to realize band inversion and topological phase transition by the interface effect. Our work is not only of great scientific significance for studying the coupling mechanism of various degrees of freedom through interface effect, but also provides an effective strategy for realizing nonvolatile topological switches and storage devices in practical applications.

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difference of thesis and abstract

X. Duan, Z. Zhu, X. Chen, Z. Song and J. Qi, J. Mater. Chem. C , 2024, Accepted Manuscript , DOI: 10.1039/D3TC04392D

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