How to Write an IMRAD Paper: Outlines, Examples, Checklists

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Key Takeaways:

• IMRAD organizes empirical papers into 4 core sections (Introduction, Methods, Results, Discussion) plus an abstract and references.
• The skeleton stays fixed across disciplines; only the content inside each section changes with the field and study design.
• Some fields (humanities, mathematics, economics) and formats (case reports) use non-IMRAD structures instead.
• Knowing how sections differ (Introduction vs Discussion, Results vs Discussion) prevents overlap, repetition, and reviewer complaints.

Glossary of Key Terms

Term	Definition
IMRAD	The acronym for Introduction, Methods, Results, and Discussion, the standard skeleton of empirical research papers.
Empirical study	Research based on observed or measured data rather than argument alone.
Abstract	A short summary of the whole paper, usually 150-300 words.
Hypothesis	A testable prediction about the relationship between variables.
Methods (Materials and Methods)	The section describing exactly how the study was carried out.
Results (Findings)	The section reporting what was found, without interpretation.
Discussion	The section that interprets results and compares them with prior work.
Registered report	A paper peer-reviewed in 2 stages, with the plan reviewed before data collection.
Systematic review	A structured, reproducible summary of existing studies on a defined question.
IPA	Interpretative Phenomenological Analysis, a qualitative method focused on lived experience.
Secondary data	Data originally collected by others for a different purpose.
Cross-sectional study	A design that measures variables at a single point in time.
Retrospective study	Analysis of events or records that already occurred.
Limitations	Openly acknowledged weaknesses that constrain a study’s conclusions.

What Is an IMRAD Paper?

An IMRAD paper is an empirical research article split into 4 sections: Introduction, Methods, Results, and Discussion. IMRAD is simply the acronym formed from those section names.

The format dominates the sciences, health, and social sciences. It mirrors the logic of research itself: you state a question, describe how you answered it, report what you found, and explain what it means. That parallel is why the structure feels natural once you have run a study.

IMRAD spread through 20th-century science because it made growing volumes of research navigable. Editors wanted a shape readers could trust. Today most quantitative and many qualitative journals mandate it, so learning the pattern once pays off across your whole career.

A full IMRAD manuscript also carries supporting parts that sit outside the acronym. These frame and close the paper.

• Title and author list: concise, specific, and searchable.
• Abstract and keywords: a miniature of the paper for indexing and quick reading.
• References: every source cited, in the journal’s required style.
• Optional closers: Conclusion, Acknowledgments, funding, and supplementary files.

Use IMRAD when your paper reports original data. Avoid forcing it onto argument-driven work, purely theoretical pieces, or narrative essays, where it distorts the natural flow of ideas.

A further advantage is teaching value. Because the format separates evidence from interpretation, students and new reviewers can learn to read critically: check the Methods for rigor, read the Results for facts, then test whether the Discussion stays within what those facts support.

Why the IMRAD Format Dominates Journals

Journals prefer IMRAD because it makes articles predictable and easy to scan. Readers locate the methods or the findings instantly, which speeds peer review, indexing, and citation.

Predictability serves everyone in the publishing chain. The benefits compound across authors, reviewers, and later readers.

• Authors: the fixed order reduces decisions about what belongs where.
• Reviewers: they can check design, analysis, and claims section by section.
• Readers: they can jump straight to the part they need without reading linearly.
• Databases: consistent structure improves indexing and retrieval.

The structure also enforces honesty. Because methods and results are walled off from interpretation, reviewers can judge whether the conclusions actually follow from the data, rather than from persuasive prose.

Finally, IMRAD travels well across languages and cultures. A researcher who cannot read a paper closely can still navigate it by section, which is 1 reason the format underpins global scientific communication and large bibliographic databases.

What Goes in Each IMRAD Section?

Each section answers 1 question: the Introduction asks why the study matters, Methods asks how it was done, Results asks what was found, and Discussion asks what the findings mean.

Keeping each section to its own question is the single most useful discipline in IMRAD writing. When content drifts into the wrong section, papers become repetitive and reviewers ask for cuts.

The Introduction

The Introduction moves from the broad topic to your specific study, ending with a clear aim, hypothesis, or research question.

• Establish the topic and why it matters.
• Summarize relevant prior work to build context.
• Identify the gap, problem, or unresolved question.
• State the aim, objectives, or hypothesis in the final paragraph.

A useful mental model is a funnel: start wide with the topic, narrow to the specific problem, then arrive at your precise aim. Many strong introductions follow 3 moves: establish the territory, expose the gap, and announce how this study fills it.

Common mistakes include reviewing every study ever published, hiding the aim in the middle, and previewing results. Keep it lean: enough context to justify the question, and no more.

The Methods

The Methods section lets a competent peer reproduce your study. Write it in the past tense and organize it logically.

• Describe design, setting, participants or samples, and materials.
• Detail procedures, instruments, and measurements in order.
• State the analysis plan, software, and statistical tests.
• Report ethics approval, consent, and any registration.

The test of a good Methods section is reproducibility: could a peer repeat the study from your description alone? If a detail would change the outcome, include it. Move long protocols to supplementary material.

Transparency now extends beyond procedures. Many journals expect a data-availability statement, a note on preregistration, and adherence to a reporting checklist matched to the design. Naming the checklist you followed signals rigor and shortens review.

The Results

The Results section reports findings only, with no interpretation. Lead with the answer to your main question.

• Present data in a logical order, often mirroring the aims.
• Use tables and figures for detail; use text for the key message.
• Report effect sizes, confidence intervals, and exact statistics.
• Avoid citing other studies or explaining causes here.

Do not repeat every number from a table in the text. Instead, highlight the pattern the reader should notice, then point to the table or figure for the full detail. Save all interpretation for the Discussion.

Order the Results to match the aims stated in the Introduction. Report primary outcomes before secondary ones, and describe participant flow or sample characteristics first, so readers can judge who the findings apply to before they meet the findings themselves.

The Discussion

The Discussion interprets your findings and connects them back to the literature and the gap you named.

• Restate the main finding in plain language.
• Compare results with prior work and explain agreement or conflict.
• Acknowledge limitations honestly.
• State implications and suggest next steps.

A reliable Discussion shape opens with the key finding, moves through comparison with prior work, then limitations, and closes with implications. This mirror-image of the Introduction, moving from specific back to general, gives readers a satisfying sense of closure.

Resist overclaiming. Match the strength of your conclusions to the strength of your design. A cross-sectional study cannot prove causation, so its Discussion should describe associations, not causes.

IMRAD Outlines Across Fields and Study Designs

The skeleton never changes; only the content within each section does. The tables below show how the same 4 sections adapt to 7 common designs. Each table uses the same 3 columns: the IMRAD section, what to include, and a worked example.

Notice a pattern as you read across designs. Quantitative studies emphasize measurement and statistics, qualitative studies emphasize participants and themes, and observational studies emphasize confounding. The section that varies most between fields is Methods, because that is where a design truly lives.

RT-PCR Experiment (Molecular Biology)

IMRAD Section	What to Include	RT-PCR Example
Introduction	Gene of interest, biological question, hypothesis, rationale for measuring expression	Why quantify mRNA of gene X under condition Y
Methods	Samples, RNA extraction, cDNA synthesis, primers, cycling, controls, normalization	3 cell lines; SYBR Green qPCR; GAPDH reference; delta-delta Ct
Results	Expression levels, fold changes, statistics, melt-curve checks	Gene X up 2.4-fold (p < 0.01); single melt peak
Discussion	Interpret the expression change, compare literature, limitations, next steps	Upregulation supports pathway Z; small n; validate by Western blot

Molecular biology reviewers focus on reproducibility, so report primer sequences, reference genes, and normalization methods precisely. Following MIQE reporting standards strengthens the Methods and prevents avoidable revision requests.

Questionnaire Survey (Education)

IMRAD Section	What to Include	Survey Example
Introduction	Educational problem, guiding theory, research questions	Link between study habits and exam scores in undergraduates
Methods	Population, sampling, instrument, validity, reliability, ethics, analysis	400 students; validated 20-item Likert scale; Cronbach alpha 0.86; regression
Results	Response rate, demographics, descriptive and inferential statistics	78% response rate; positive correlation r = 0.42
Discussion	Meaning for teaching, fit with theory, limitations, recommendations	Supports self-regulation theory; self-report bias noted

Survey papers live or die on instrument quality. Devote space in Methods to how the questionnaire was developed, validated, and scored, and report reliability so readers can trust the numbers that follow.

IPA Study (Nursing, Qualitative)

In qualitative papers, the Results section is often titled Findings.

IMRAD Section	What to Include	IPA Example
Introduction	Lived-experience focus, gap, phenomenological stance, aim	Understanding patients’ experience of chronic pain
Methods	IPA rationale, purposive sampling, semi-structured interviews, analysis steps, reflexivity	8 participants; verbatim transcripts; idiographic then cross-case themes
Findings	Superordinate and subordinate themes, supporting quotes	Theme: living in a shrinking world; illustrative extracts
Discussion	Link themes to theory and literature, care implications, limitations	Echoes biographical disruption; small, homogeneous sample

IPA prizes depth over breadth, so a small sample is a feature, not a flaw. Reviewers expect positionality and reflexivity statements and rich participant quotes that let readers judge how the themes were built from the data.

Retrospective Study Using Secondary Data

IMRAD Section	What to Include	Retrospective Example
Introduction	Clinical or policy question, rationale for using existing data	Do statins reduce readmission in a registry cohort
Methods	Data source, time frame, inclusion and exclusion, variables, confounders, approval	Registry 2015-2022; 12,000 records; Cox regression adjusted for age
Results	Cohort flow, baseline table, main associations, subgroups	Hazard ratio 0.82 (95% CI 0.74-0.91)
Discussion	Causation caveats, comparison, data limitations, bias	Residual confounding and missing data; no proof of causation

With secondary data you inherit someone else’s choices, so be transparent about data quality, missing values, and how you handled them. The Discussion must foreground confounding, because unmeasured factors threaten every observational finding.

Cross-Sectional Study

IMRAD Section	What to Include	Cross-Sectional Example
Introduction	Prevalence or association question, rationale for a snapshot design	Prevalence of hypertension in urban adults
Methods	Sampling frame, sample size, single time point, measures, analysis	1,500 adults; 1 survey wave; prevalence ratios
Results	Prevalence estimates, associations, confidence intervals	27% prevalence; higher with obesity
Discussion	No temporality, comparison, limitations, implications	Cannot infer cause; a single snapshot only

Because everything is measured at once, you cannot say which variable came first. Frame findings as associations, report confidence intervals, and follow the STROBE checklist to satisfy reviewers of observational research.

Environmental Science Field Study

IMRAD Section	What to Include	Environmental Example
Introduction	Ecological question, site relevance, hypothesis	Effect of runoff on stream macroinvertebrates
Methods	Study sites, sampling design, field and lab methods, instruments, statistics	6 sites; monthly sampling for 1 year; diversity indices; ANOVA
Results	Measured variables, spatial and temporal patterns, figures	Diversity lower downstream (p < 0.05)
Discussion	Likely mechanisms, comparison, management implications, limitations	Nutrient loading a probable driver; unmeasured confounders

Field studies must describe sites, seasons, and sampling design in enough detail to place the data in space and time. Maps and site tables in Methods help readers judge how far your conclusions generalize beyond the studied area.

Chemistry Experiment (Synthesis)

In chemistry, Methods is often titled Experimental, and Results and Discussion are frequently combined.

IMRAD Section	What to Include	Chemistry Example
Introduction	Target compound, significance, prior routes, aim	A greener synthesis of compound A
Experimental	Reagents, procedures, conditions, characterization, safety	Reflux 6 h; NMR, IR, MS; yield calculation
Results	Yields, spectral data, reaction outcomes	82% yield; clean 1H NMR spectrum
Discussion	Mechanism, efficiency, comparison, limitations	Higher yield than route B; scale-up untested

Synthetic chemistry papers demand full characterization data so others can confirm the product. When Results and Discussion are merged, still keep the raw outcome and its interpretation clearly distinguishable within each paragraph.

How Do You Apply IMRAD to a Literature Review?

A narrative review does not follow IMRAD, but a systematic review does. It uses an Introduction, Methods (search strategy), Results (study selection and synthesis), and Discussion.

The deciding factor is whether the review has a reproducible method. If it does, it fits an IMRAD-style flow closely aligned with reporting standards such as PRISMA.

Review Type	Does It Use IMRAD?
Narrative (traditional) review	No; organized by theme or chronology, not IMRAD
Systematic review	Yes; follows an IMRAD flow guided by PRISMA
Meta-analysis	Yes; IMRAD with pooled statistical synthesis in Results
Scoping review	Partly; IMRAD-like but broader and less quantitative

For a systematic review, map the content onto IMRAD like this.

• Introduction: the question, its importance, and the review objective.
• Methods: databases, search terms, eligibility criteria, and screening.
• Results: the PRISMA flow, included-study characteristics, and synthesis.
• Discussion: strength of evidence, limitations, and practice implications.

A narrative review, by contrast, is organized by argument. It groups studies by theme or debate and builds toward a viewpoint, so it reads more like a humanities essay than an IMRAD paper.

A meta-analysis takes the systematic review 1 step further by pooling results statistically. Its Results section reports the combined effect, heterogeneity between studies, and often a forest plot, while the Methods explain how effect sizes were extracted and weighted.

What Are the Alternatives to IMRAD?

Alternatives include thematic essays in the humanities, theorem-and-proof papers in mathematics, model-and-data papers in economics, and structured case reports following CARE guidelines.

IMRAD suits data-driven research. Fields built on argument, proof, or a single case use structures that fit their logic better, as the table summarizes.

The lesson is to match structure to purpose, not to habit. If your work builds a case rather than tests a hypothesis, a rigid IMRAD template can fragment your argument. Choose the format your discipline expects, and confirm it in the target journal’s guidelines.

Field or Format	Typical Structure
Humanities essay	Introduction with thesis, thematic body, conclusion
Economics paper	Introduction, literature, model, data, results, conclusion
Mathematics paper	Introduction, definitions, theorems and proofs, remarks
Clinical case report	Introduction, case presentation, discussion, conclusion

Humanities Papers

Humanities articles advance an argument rather than report data. They rarely separate methods from results.

• Open with a thesis statement that stakes a clear claim.
• Build the body around themes, texts, or lines of argument.
• Weave evidence and interpretation together rather than splitting them.
• Close by returning to the thesis and its wider significance.

Structure here follows the argument, not a template. A paper on a novel might be organized by motif, while a historical study might proceed chronologically. Coherence is achieved by paying attention to transition and ensuring that arguments logically flow from each other.

Economics Papers

Economics uses an IMRAD variant that separates theory from evidence.

• Introduction: the question, contribution, and main result stated early.
• Model: the theoretical framework and its assumptions.
• Data and empirical strategy: sources and identification approach.
• Results and conclusion: estimates, robustness, and implications.

Economists often state the headline finding in the first page, then spend the paper justifying it. The identification strategy, how the design supports causal claims, receives more attention than in a typical IMRAD Methods section.

Mathematics Papers

Mathematics papers follow a definition-theorem-proof logic instead of empirical sections.

• Introduction: the problem, context, and main theorem.
• Preliminaries: definitions, notation, and known results.
• Main results: theorems, lemmas, and rigorous proofs.
• Remarks: consequences, examples, and open questions.

There is no data to report, so there is no Results section in the empirical sense. The proof is the evidence. Clarity of definitions and the logical flow of the argument carry the paper.

Case Reports

A clinical case report describes 1 patient or a small series and follows the CARE guidelines.

• Introduction: why this case is notable.
• Case presentation: history, findings, timeline, and management.
• Discussion: comparison with the literature and lessons learned.
• Conclusion: the take-home message, with consent documented.

Because a single case cannot support statistics, the value lies in careful description and teaching points. Patient consent and, where relevant, a patient perspective are expected parts of the format.

A clear timeline is often the most useful element, showing the sequence of symptoms, tests, treatments, and outcomes. This lets other clinicians recognize a similar pattern quickly and apply the lesson to their own patients.

How Do Key IMRAD Sections Differ From Each Other?

The difference is purpose: the Introduction sets up the study and the Discussion interprets it; Results state findings while Discussion explains them; the Conclusion just summarizes.

Confusing these pairs is the most common structural error in manuscripts. The comparison tables below make each boundary explicit so you can keep content where it belongs.

Introduction vs Background

Background is a part within the Introduction, not a separate section; it supplies the context that leads to your gap.

Aspect	Introduction	Background
Role	Frames the whole study and its aim	Supplies context and prior knowledge
Scope	Broad, then narrows to objectives	Focused facts relevant to the gap
Placement	A full section that contains background	A subsection or opening paragraphs within it
Ends with	The research question or hypothesis	The setup for the knowledge gap

Introduction vs Discussion

The Introduction moves from general to specific; the Discussion moves from specific back to general.

Aspect	Introduction	Discussion
Direction	General topic to specific aim	Specific findings to broad meaning
Core question	Why the study was done	What the findings mean
Content	Gap, aim, hypothesis	Interpretation, comparison, implications
Findings	None presented yet	Interpreted, not re-listed

Results vs Discussion

Results state what you found; the Discussion explains what it means. Keep interpretation out of Results.

Aspect	Results	Discussion
Content	Findings only	Interpretation of findings
Data	Numbers, tables, figures	Meaning, with no new data
Tone	Objective and factual	Analytical and comparative
Citations	Rare	Frequent, comparing prior work

Discussion vs Conclusion

The Discussion interprets in depth; the Conclusion delivers a short, final take-home message.

Aspect	Discussion	Conclusion
Length	Long and detailed	Short and focused
Content	Interpretation, limitations, comparison	Key message and implications
New analysis	Interprets the results	Adds no new interpretation
Ends with	A lead into the conclusion	A final statement and future work

If you can move a sentence between 2 of these sections without it feeling wrong, it probably signals overlap. Interpretation belongs in the Discussion; raw findings belong in Results; a brief summary belongs in the Conclusion.

A quick self-check helps. For each sentence, ask which of the 4 IMRAD questions it answers. If a Results sentence explains why a finding happened, it has strayed into the Discussion and should move. This 1-question test resolves most boundary disputes.

Tense and Voice Across IMRAD Sections

Tense shifts by section: use past tense for methods and results, and present tense for established facts and interpretation. Voice is mostly active, with passive reserved for describing procedures.

Section	Typical Tense	Note
Introduction	Present and past	Present for accepted facts; past for prior studies
Methods	Past	You describe what was done
Results	Past	You report what you found
Discussion	Present and past	Past for your findings; present for their meaning

Modern style guides favor the active voice and the first person where natural, because they are clearer and shorter. Reserve the passive for procedures where the actor is obvious or unimportant.

Consistency matters more than any single rule. Pick a convention that fits the journal, then apply it uniformly, so that a shift in tense signals a real shift in meaning rather than careless drafting.

Reporting Statistics, Tables, and Figures

Report exact statistics with effect sizes and confidence intervals, put detailed data in tables or figures, and use the text to state only the key message the reader must not miss.

• Give exact p-values rather than only thresholds, plus effect sizes.
• Number tables and figures in the order they are first mentioned.
• Write self-explanatory captions so each display stands alone.
• Never present the same data in both a table and a figure.

Every table and figure should earn its place by showing something the text cannot say efficiently. If a display repeats a single number, delete it and state the number in the sentence instead.

Report enough for a reader to assess and, ideally, reanalyze your work: sample sizes, the test used, the test statistic, degrees of freedom where relevant, and a measure of uncertainty. Confidence intervals often communicate more than a p-value alone, because they show the plausible range of an effect.

Common IMRAD Mistakes to Avoid

The most common mistakes are interpreting data in the Results, over-reviewing the literature in the Introduction, hiding limitations, and overclaiming in the Discussion. Each blurs a section boundary.

Reviewers flag the same errors repeatedly. Watch for these before you submit.

• Results that explain causes instead of just reporting findings.
• An Introduction that reviews everything rather than justifying 1 question.
• A Methods section too thin to reproduce the study.
• A Discussion that repeats results without interpreting them.

A second cluster of problems concerns tone and honesty. Burying limitations, ignoring conflicting studies, and drawing causal conclusions from correlational data all erode reviewer trust and invite rejection.

A final group is formatting: figures without readable captions, tables that duplicate the text, and inconsistent statistics between the abstract and the body. A careful proofreading pass against the journal checklist catches most of these before a reviewer ever does.

Examples

Mistake	Problematic sentence (what to avoid)	Fixed version
Interpreting in Results	“Scores rose because the new teaching method boosted student motivation.”	“Mean scores rose from 62 to 74 (p = 0.01).” (save the “because” for Discussion)
Over-reviewing in Introduction	“Since 1950, hundreds of studies have examined memory, attention, sleep, diet, and stress across many populations.”	“Prior work links sleep loss to poorer memory, but few studies test this in low-income teenage shift workers, the gap we address.”
Methods too thin to reproduce	“112 participants completed a 20-item survey and the data were analyzed with an ANOVA and SPSS.”	“112 nurses from 7 departments of a university hospital completed a validated 20-item Likert survey. Responses were compared using a one-way ANOVA. All analyses were conducted using IBM SPSS Statistics for Windows, Version 29.0 (IBM Corp., Armonk, N.Y., USA).”
Discussion repeats Results	“As shown, the treatment group scored 74 and the control group scored 62.”	“The 12-point gap suggests the intervention works, consistent with Smith (2021), though the short follow-up limits claims.”
Burying or omitting limitations	“These findings clearly prove the method works for all learners.”	“Because the sample was one school and self-selected, results may not generalize; a randomized trial is needed.”
Overclaiming / causal from correlational	“Coffee intake causes higher exam performance.”	“Coffee intake was associated with higher exam scores; the design cannot establish causation.”
Ignoring conflicting studies	“Our results confirm that the drug is effective.”	“Our results align with Lee (2020) but conflict with Patel (2022); differences in dosing may explain the gap.”
Table duplicates the text	“Table 2 shows that the mean age was 38.4 years (SD: 3), 54 participants were female, 37 participants had a bachelor’s degree, and 47 were White.”	“Participant demographics are shown in Table 2” (just direct the reader to where the relevant statistics are located)
Inconsistent statistical data in abstract vs body	Abstract: “r = 0.42” while body reads “r = 0.51”	Make both read “r = 0.42” (reconcile every figure against the source analysis)

A Practical Drafting Workflow

You do not have to write IMRAD in reading order. Most experienced authors draft the sections in the order that is easiest, then arrange them for the reader.

Drafting out of order also protects against a common trap: writing a grand Introduction that promises more than the data deliver. When you fix the findings first, the framing stays honest, and revision becomes trimming rather than rescuing.

Write Methods and Results First

Methods and Results are the most factual sections, so they are the easiest to draft while the study is fresh.

• Draft Methods from your protocol and lab or field notes.
• Build tables and figures next, then write Results around them.
• Lock these sections before interpreting, to avoid biasing your reading.

Write Introduction and Discussion Last

Once the findings are fixed, the Introduction and Discussion almost write themselves, because you know exactly what to set up and interpret.

• Write the Introduction so it points squarely at your findings.
• Write the Discussion to answer the question the Introduction posed.
• Draft the abstract and title at the very end, then revise for word limits.

Leave time for a structural read of the whole draft. Check that the Introduction promises exactly what the Results deliver, that the Discussion answers the stated aim, and that no idea appears in 2 sections. This alignment pass often does more for clarity than line editing.

Writing the Title and Abstract

Write a specific, keyword-rich title, then a structured abstract that mirrors IMRAD in miniature: 1-2 sentences each on background, methods, results, and conclusion, within 150-300 words.

The title and abstract are what most people actually read, so they must convey the study accurately on their own.

• Title: name the population, variables, and design where possible.
• Background: the question and why it matters.
• Methods: design, sample, and main measures.
• Results and conclusion: the key finding and its take-home meaning.

Avoid citations, undefined abbreviations, and vague phrasing in the abstract. Choose keywords that a searcher would actually type, because they drive whether your paper is ever found.

Write the abstract last, then read it on its own. It should state what you did, what you found, and what it means, without the reader needing the full paper. If a number in the abstract does not match the Results, fix it before submission.

Many journals now require a structured abstract with labeled parts, and some ask for a plain-language summary as well. Check the guidelines early, because these formats shape how much detail each part of your abstract can carry.

Special Cases: Registered Reports, Theses, and Pilot Studies

IMRAD flexes to fit unusual formats. The 3 questions below cover the cases authors ask about most often.

The common thread is that IMRAD is a logic, not a rigid template. Whether stretched across thesis chapters or split across review stages, the same 4 questions still drive the writing: why, how, what was found, and what it means.

Does IMRAD Work for a Registered Report?

Yes. A registered report uses IMRAD but splits it across 2 stages. Stage 1 covers the Introduction and Methods, reviewed before data collection; Stage 2 adds the Results and Discussion.

This split reduces publication bias, because acceptance depends on the question and design rather than on the outcome.

• Stage 1: Introduction, Methods, and analysis plan, reviewed in advance.
• In-principle acceptance: granted before any data are collected.
• Stage 2: the same paper, now with Results and Discussion added.

How Does IMRAD Map Onto a Thesis or Dissertation?

A thesis expands IMRAD into chapters. The introduction and literature review become separate chapters; Methods, Results, and Discussion each get their own; a final chapter states conclusions.

A monograph thesis stretches IMRAD across chapters, while a thesis by publication wraps several IMRAD papers between shared framing chapters.

• Chapter 1: Introduction and aims.
• Chapter 2: Literature review, expanded from a journal introduction.
• Chapters 3-5: Methods, Results, and Discussion.
• Final chapter: Conclusions and future work.

Where Should You Report a Pilot Study?

Report a pilot in the Methods if it shaped your final design. If pilot data are substantial, give them a short Results subsection. A large standalone pilot may deserve its own paper.

Match the placement to the pilot’s weight in the study.

• Design-shaping pilot: describe briefly in Methods, noting changes made.
• Data-bearing pilot: add a short, clearly labeled Results subsection.
• Standalone pilot: publish separately as a feasibility paper.

Checklist for IMRAD Papers

Section	Check	Done?
Title & Abstract	Title names the topic, and ideally the design or key finding	☐
	Abstract is 150-300 words and covers aim, methods, results, conclusion	☐
	Every number in the abstract matches the body exactly	☐
Introduction	Moves from broad context to 1 specific gap	☐
	States the research question or hypothesis clearly	☐
	Reviews only literature that justifies this study, not everything	☐
	Ends with the aim, not with results	☐
Methods	Detailed enough for another researcher to reproduce the study	☐
	Reports sample size, sampling, instruments, and validity/reliability	☐
	Names the exact statistical tests or analysis approach	☐
	Includes ethics approval and consent where relevant	☐
	Written in past tense	☐
Results	Reports findings only, with no interpretation or “because”	☐
	Gives exact statistics with effect sizes and confidence intervals	☐
	Each table or figure has a readable, standalone caption	☐
	Tables and figures do not just repeat the text	☐
	Results align 1-to-1 with the stated aims	☐
Discussion	Opens by answering the research question	☐
	Interprets results rather than restating them	☐
	Compares findings with prior work, including conflicting studies	☐
	States limitations openly	☐
	Claims match the evidence, with no causal leaps from correlation	☐
Conclusion	Summarizes the take-home message without new data	☐
	Notes implications or next steps briefly	☐
Whole paper	Tense is correct per section (past for Methods/Results)	☐
	Statistics are consistent between abstract and body	☐
	Formatting follows the target journal’s checklist	☐
	References are complete and correctly styled	☐

Frequently Asked Questions

What is the correct order of sections in an IMRAD paper?

The order is Title, Abstract, Introduction, Methods, Results, Discussion, then References. Many journals add a Conclusion, Acknowledgments, and supplementary material after the Discussion.

• Front matter: title, authors, affiliations, abstract, and keywords.
• Body: Introduction, Methods, Results, and Discussion in that order.
• Back matter: Conclusion, acknowledgments, funding, references, appendices.

Can you use subheadings within IMRAD sections?

Yes. Subheadings are encouraged in Methods and Results to guide readers. Most journals allow 2 levels, but always check the target journal’s author guidelines first.

• Methods subheadings: participants, materials, procedure, and analysis.
• Results subheadings: 1 per outcome, aligned with your aims.
• Keep subheadings short, parallel, and consistent in style.

Use subheadings sparingly in the Introduction and Discussion, where a continuous argument usually reads better than fragmented blocks. When in doubt, follow the pattern shown in recent articles from your target journal.

How long should each section of an IMRAD paper be?

There is no fixed rule, but a common split is roughly Introduction 15%, Methods 25%, Results 30%, and Discussion 30% of the word count, with the rest for the abstract and references.

Treat these shares as a starting point, then adjust to the study and the journal’s word limit. A methods-heavy trial needs a longer Methods section; a surprising finding needs a longer Discussion.

What is the difference between IMRAD and IMRaD?

There is no real difference. IMRaD simply lowercases the a from and, which is not a section. Both spellings describe the same Introduction, Methods, Results, and Discussion structure.

Do qualitative studies use the IMRAD structure?

Yes, most qualitative studies use IMRAD, though the Results section is often titled Findings and organized by theme. Methods describe the qualitative approach, sampling, and analysis in detail.

• Use Findings, not Results, when reporting themes.
• Weave participant quotes into the Findings for evidence.
• Address reflexivity and trustworthiness within Methods.

How do you write an abstract for an IMRAD research paper?

Mirror the IMRAD sections in miniature: 1-2 sentences each on background, methods, results, and conclusion. Keep it within 150-300 words and avoid citations and undefined abbreviations.

• Background: the question and why it matters.
• Methods: design, sample, and main measures.
• Results: the key numbers or findings.
• Conclusion: the take-home message.

Should the introduction of an IMRAD paper include a hypothesis?

Usually yes for quantitative studies: state the hypothesis or specific objectives at the end of the Introduction. Exploratory or qualitative studies state aims or research questions instead.

Whatever you state, make it testable and singular where possible. A crisp aim in the final sentence of the Introduction tells the reader exactly what the Results should deliver and what the Discussion must interpret.

Is a literature review a separate section in an IMRAD paper?

Not usually. In a journal IMRAD paper the literature review is folded into the Introduction. Theses and some fields, such as economics, do include a separate review chapter or section.