What a Research Paper Conclusion Actually Does
The conclusion is the shortest section of most research papers, and the one students most often rush. After weeks of research, analysis and drafting, the temptation is to wrap things up in three tired sentences and submit. That is a mistake, because the conclusion is the last thing your reader sees — and in many cases, the first thing a busy examiner or reviewer reads after the abstract. A weak ending can make solid research look unfinished; a strong one can make the whole paper feel complete.
Its job is narrower than most students think. The conclusion does not present new evidence, introduce new arguments, or repeat the discussion in miniature. It does three things: it gives the short answer to your research question, states what that answer contributes, and points to what should happen next. Nothing more. The University of Southern California’s guide to writing the conclusion puts it plainly — the conclusion restates and highlights your main argument and its significance, without simply repeating the findings. If your discussion section has done its job, the conclusion almost writes itself.
How Long Should a Research Paper Conclusion Be?
Short. For most undergraduate and master’s papers, the conclusion runs to roughly 5–10% of the total word count — typically 200 to 400 words in a 3,000–5,000-word paper. A journal article conclusion is often shorter still, sometimes a single paragraph. If your conclusion is running to a full page, you are almost certainly repeating the discussion or introducing material that belongs earlier in the paper.
The 4-Part Structure That Works
Nearly every strong research paper conclusion follows the same four moves, in order.
1. Restate the research question and give the direct answer
Open by reminding the reader what you set out to find, then state the answer your evidence supports — in one or two declarative sentences. No hedging, no throat-clearing. “This study asked whether daily Instagram use predicts body-image dissatisfaction among first-year female undergraduates. The results indicate that it does — but the effect is driven by appearance-focused engagement, not by total time online.” The reader should know your headline finding within the first five lines.
2. Summarise the key findings — briefly
Pick the two or three findings that matter most and restate them in a sentence each. This is a synthesis, not a list: show how the findings fit together rather than marching through them in order. Do not repeat numbers from your results section — the reader has already seen them, and the results section is where they belong. One sentence per finding is enough; the discussion has already explained what each one means, so here you only need the shape of the whole.
3. State the contribution and its significance
This is the move students skip most often, and the one markers reward most. Say what your study adds: does it confirm an existing finding in a new population, contradict a widely held assumption, or fill a gap your literature review identified? Be specific — “this study contributes to the literature on social media and wellbeing” says nothing; “this study shows that the link between social media and body image runs through the type of engagement, not the amount of time — a distinction earlier studies did not draw” says something a reader can use. This is also where you can note the practical significance: what should practitioners or other researchers do differently because of what you found?
4. End with limitations, implications and future research
Close by acknowledging the main limitation in one honest sentence — a small sample, a single-site design, self-reported data — and then pointing to the specific research that should follow. Link each suggestion to a limitation, so it reads as a natural next step rather than a generic “more research is needed”. Then stop: the final sentence should be the take-home message you want the reader to remember. The UNC Writing Center’s guide to writing conclusions makes the same point — a good conclusion synthesises rather than summarises, and leaves the reader with something to take away.
A Worked Example: Conclusion in Action
Here is how the four moves look together, for a study asking whether daily Instagram use predicts body-image dissatisfaction among first-year female undergraduates.
Answer: “This study asked whether daily Instagram use predicts body-image dissatisfaction among first-year female undergraduates at UK universities. The results indicate that it does: students reporting more than two hours of daily use scored significantly higher on body dissatisfaction than lighter users — but the effect was driven almost entirely by appearance-focused engagement, not by total time online.”
Key findings: “Viewing influencer content and editing photos predicted dissatisfaction; messaging friends and browsing non-appearance content did not. The effect held after controlling for baseline self-esteem, suggesting it is the comparison mechanism, rather than screen time itself, that matters.”
Contribution and close: “These findings refine the common claim that ‘social media harms body image’ into something more precise — and more actionable. The study was limited to a single university and relied on self-reported usage, so future research should test the effect longitudinally and across platforms. For now, the practical implication is clear: interventions should target the type of engagement, not the clock.”
Four short paragraphs, about 200 words, no new evidence, no new citations, no apology. That is the standard to aim for.
Conclusion vs Discussion: Where Does One End?
Students often ask what belongs in the conclusion if the discussion has already covered everything. The difference is one of scope and job. The discussion interprets: it explains findings, compares them with the literature, and weighs limitations in detail. The conclusion synthesises: it gives the short answer, states the contribution in a few sentences, and stops. Our guide to writing a research paper discussion section covers the interpretive work in detail.
The other boundary that matters is with the abstract. The abstract is a summary of the whole paper, written for someone who may never read it. The conclusion is the ending of the paper, written for someone who has just read it. They overlap in content but differ in audience — so the conclusion can assume the reader knows the study, and should not waste words re-explaining it.
Common Mistakes (and How to Fix Them)
Introducing new results or citations
The most common mistake, and the easiest to avoid. If you find yourself writing “a recent study also shows…” in your conclusion, stop — that study belongs in the literature review or discussion, or it does not belong at all. A new citation in the final paragraph reads as a sign the paper was not planned properly.
Repeating the discussion in miniature
A conclusion that re-argues every finding is a discussion section wearing a different heading. If your conclusion is longer than 10% of the paper, cut the interpretation and keep the answer, the contribution and the next step.
Overclaiming
“This study proves that…” from forty students at one university is not a conclusion, it is a hostage to fortune. Use “suggest” and “indicate”, state the scope of your sample, and let the evidence carry the claim. Confidence in a conclusion comes from precision, not from volume.
Ending on an apology
“This study only scratched the surface…” or “due to the word limit, it was not possible to…” — these phrases hand the last impression to your limitations. Acknowledge them honestly in one sentence, then finish on the contribution.
Writing “In conclusion” and then carrying on for 400 words
“In conclusion” is not forbidden — just overused, and many markers find it tired. Phrases like “Taken together” or simply starting with the restated answer read more naturally.
Research Paper Conclusion Checklist
Before you submit, run through this quick check:
- Does it open with a direct answer to the research question?
- Are the key findings summarised in two or three sentences, without repeating numbers?
- Does it state the study’s contribution specifically — what it adds, confirms or challenges?
- Is the main limitation acknowledged in one honest sentence?
- Does it suggest specific further research, linked to that limitation?
- Does it contain no new results, citations or arguments?
- Is it roughly 5–10% of the paper’s word count?
- Would a reader who only read the introduction and the conclusion understand what you found and why it matters?
That last test is the most revealing. The introduction made a promise; the conclusion shows whether it was kept.
Final Thoughts
A research paper conclusion is short, but it carries disproportionate weight. It is the last thing your reader sees and the first thing they remember when they decide what the paper was worth. A conclusion that answers the question plainly, states the contribution specifically, and ends on a clear next step can lift an otherwise average paper.
The good news is that conclusions are learnable. The four-part structure — answer, findings, contribution, next step — works for almost any empirical paper, from a first-year project to a master’s dissertation. Practise it, check it against the list above, and your endings will stop being an afterthought and start being an advantage.
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