Abstract Examples for Research Papers and Dissertations

An abstract is a brief, self-contained summary of a research paper, dissertation, or article. A reader who only reads the abstract should understand: what problem was studied, how it was studied, what was found, and what the findings mean. The examples on this page are annotated to show how each sentence fulfills one of these functions.

For a full guide on how to write an abstract, see how to write an abstract.

The Four Elements Every Abstract Needs

Before the examples, here is what each sentence in a good abstract must do:

Example 1: Social Science Research Paper

This example (182 words) is typical for a psychology or education journal article.

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[OBJECTIVE: States the problem and why it matters] The relationship between social media use and adolescent mental health has been extensively studied, yet findings remain inconsistent, partly because most studies treat social media use as a single undifferentiated variable. This study distinguished between passive social media consumption (scrolling without interacting) and active use (posting, commenting, messaging) to test whether these behaviors have distinct relationships with depressive symptoms.

[METHODS: Sample, design, measures, analysis] A prospective longitudinal sample of 312 adolescents aged 12 to 16 completed quarterly assessments of social media activity via passive device monitoring and depressive symptoms via the PHQ-9 over 24 months. Fixed-effects regression models examined whether passive use, active use, or both predicted changes in PHQ-9 scores.

[RESULTS: Main findings with specific numbers] Passive social media use significantly predicted increases in depressive symptoms at the next assessment (b = 0.42, p < .001), while active use did not (b = 0.08, p = .31). Effects were larger for girls (b = 0.61) than boys (b = 0.19).

[CONCLUSION: What the findings mean] These findings suggest that the design of social media platforms, which emphasizes passive consumption, may be a more important driver of adolescent mental health effects than time spent on social media per se. Interventions should target scrolling behavior rather than restricting access broadly.

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What this example demonstrates:

• The objective states a specific gap in the literature (inconsistency due to treating use as undifferentiated), not just the general topic
• Methods are specific: sample size, age range, measurement approach, and analytic method are all named
• Results include actual statistics, not just "we found a significant effect"
• The conclusion draws a specific practical implication, not a generic "more research is needed"

Example 2: Dissertation Abstract

This example (243 words) is typical for a doctoral dissertation in the social sciences or humanities. Dissertation abstracts are longer than journal article abstracts and cover the argument more fully.

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[OBJECTIVE: Problem, gap, and significance] School funding in 36 states is still allocated partly through formulas tied to local property tax revenue, creating systematic resource disparities between wealthy and low-income districts. While a substantial body of research demonstrates that additional spending can improve student outcomes, less is known about whether the effect of increased funding depends on the governance capacity of the receiving district. This dissertation investigates whether court-ordered school finance reforms produced larger academic gains in districts with stronger administrative capacity, measured by principal tenure, teacher retention, and administrative staffing ratios.

[METHODS: Design, data, and analysis] Using a difference-in-differences design, this study analyzed district-level panel data from 1990 to 2010 across 22 states that implemented court-ordered finance reforms during that period. Governance capacity was measured using a composite index derived from state administrative records. Outcomes included fourth- and eighth-grade math and reading scores from the National Assessment of Educational Progress and high school graduation rates.

[RESULTS: Main findings] Districts with high governance capacity showed consistent academic gains following funding reforms (effect size: 0.18 SD in math, 0.14 SD in reading), while low-capacity districts showed no significant improvement despite receiving comparable funding increases. Effects were largest for the lowest-income student populations.

[CONCLUSION: Contribution and implication] These findings suggest that school funding adequacy and governance capacity are complements rather than substitutes: money improves outcomes only when districts have the institutional infrastructure to deploy it effectively. Policymakers should accompany funding reforms with capacity-building investments in low-capacity districts.

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What this example demonstrates:

• The objective names a specific gap (governance moderation of funding effects) within a known research area
• The methods name the quasi-experimental design and explain how causality is addressed
• The results include effect sizes with specific values for each outcome
• The conclusion makes a specific policy contribution, not just theoretical advancement

Example 3: STEM Research Paper

This example (161 words) is typical for a biology or biomedical sciences journal article. STEM abstracts are often more concise.

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[OBJECTIVE: Clinical problem and gap] T cell exhaustion in chronic viral infection limits the efficacy of checkpoint blockade therapy, but the molecular mechanisms governing the transition from functional to exhausted T cell states remain poorly characterized.

[METHODS: Experimental approach] We performed single-cell RNA sequencing on CD8+ T cells isolated from mice chronically infected with lymphocytic choriomeningitis virus (LCMV) at 8, 21, and 60 days post-infection, identifying transcriptional states and their dynamics over the course of exhaustion.

[RESULTS: Specific findings] We identified a transient progenitor exhausted state (Tpex) marked by TCF1 and Slamf6 expression that serves as the primary reservoir for responses to PD-1 blockade. Tpex cells decline by 80 percent between day 21 and day 60, correlating with diminished responsiveness to checkpoint therapy.

[CONCLUSION: Implication for treatment] These findings identify Tpex cell maintenance as a target for improving checkpoint blockade outcomes in chronic infection and cancer, and suggest a therapeutic window for intervention before Tpex depletion.

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What this example demonstrates:

• The objective is highly specific to the field; it does not explain what T cells are because the audience knows
• Methods section names the exact experimental system and technique
• Results are quantitative and specific; "80 percent decline" not "substantial decline"
• The conclusion identifies a therapeutic implication without overstating the evidence

Example 4: Conference Abstract Proposal

Conference abstracts are submitted before the paper is written. They describe planned or in-progress research. Length is typically 150 to 300 words.

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[OBJECTIVE] This paper examines whether the introduction of automated essay scoring (AES) in state writing assessments affects teacher instruction, specifically whether teachers adjust their writing assignments to optimize for features that AES systems reward at the expense of qualities human raters value but algorithms do not detect.

[METHODS: Note future tense for proposals] We will analyze writing assignment data from 240 teachers in three states that adopted AES between 2018 and 2022, comparing the complexity, genre diversity, and revision requirements of assignments before and after AES adoption. Teacher surveys and interviews will capture the reasoning behind instructional changes.

[PRELIMINARY RESULTS or EXPECTED CONTRIBUTION] Preliminary analysis of assignment data from the first state (n = 80 teachers) shows a 34 percent reduction in open-ended creative writing prompts and a 28 percent increase in five-paragraph essay formats following AES adoption. Final analysis will add two additional states and teacher interview data.

[CONTRIBUTION] This paper contributes to the growing literature on algorithmic accountability in education by providing the first longitudinal evidence of AES effects on teacher practice rather than student scores.

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What this example demonstrates:

• Conference abstracts can use future tense for methods not yet complete
• Preliminary results can be shared even if the full study is unfinished
• The contribution statement situates the work within the field's existing conversation

Structured vs Unstructured Abstracts

Some journals, particularly in medicine and clinical research, require structured abstracts with explicit section headers. These use the same four elements but label them explicitly:

Background: The problem and why it matters. Methods: Study design, sample, and analysis. Results: Primary findings with statistics. Conclusions: Implications and future directions.

Unstructured abstracts (which most humanities and social science journals use) present the same information as flowing prose without headers. Both formats contain the same four elements; only the visual organization differs.

How Long Should an Abstract Be?

The abstract is almost always written last, after the full paper is complete. You cannot accurately summarize findings you have not yet produced.

Frequently Asked Questions

What is an example of a good abstract? A good abstract clearly states the problem, explains the methods, reports the main findings with specific results, and draws an implication. Example: "Most studies of homework assign a single metric to all students. This experiment randomly assigned 240 fourth-grade students to one of three homework amounts (none, 30 minutes, 60 minutes) and measured reading achievement at 8 and 16 weeks. Students in the 30-minute condition outperformed both the no-homework and 60-minute groups at 16 weeks (d = 0.41 and d = 0.39, respectively). Results suggest that moderate homework improves early reading skills but that excessive homework may undermine motivation."

How long is an abstract? Most abstracts are 150 to 250 words for journal articles and 150 to 350 words for dissertations. Always follow the specific limit set by the journal, institution, or conference. Abstracts that exceed the stated limit are often automatically rejected or returned for editing.

Should an abstract include citations? No. Abstracts are self-contained summaries and do not include citations. If your abstract mentions a prior finding or study, briefly describe what was found rather than citing the source. Save citations for the body of the paper.

Can an abstract include results not yet obtained? For conference proposals and grant applications, yes: proposals describe planned or in-progress research. For published journal articles and submitted dissertations, the abstract should describe completed research with actual results. Some abstracts for submitted papers include preliminary findings if the analysis is ongoing.

For a full guide on writing abstracts from scratch, see how to write an abstract. For other academic writing guides, see how to write a literature review, literature review example, and thesis statement examples.