How to Structure a Psychology Research Paper
A complete, section-by-section walkthrough of APA 7th edition psychology paper structure — from the title page through the abstract, introduction, method, results, discussion, and references — with annotated examples, writing guidance for each section, and the structural errors that cost most students marks.
A psychology research paper has a specific architecture — not because academicians enjoy imposing rules, but because the structure reflects the logical sequence of scientific inquiry itself. Before you studied the literature, you had a question. Before you collected data, you designed a method. Before you drew conclusions, you had results to interpret. The sections of a psychology paper trace that sequence for the reader: here is the problem and what we know, here is what I did to investigate it, here is what I found, here is what it means. Understanding that logic — not just the rule about where Methods goes — transforms the structure from a bureaucratic requirement into a scaffold for your thinking.
Types of Psychology Research Papers — Structure Varies by Assignment Type
Before applying any structural framework, you need to know which type of psychology paper you are writing. The APA Publication Manual defines several distinct paper types, each with a different structure. Applying the empirical research paper structure (IMRaD) to a literature review assignment, or using the literature review format for an experimental report, produces a paper that is structurally wrong regardless of its content quality.
Empirical Research Paper
Reports an original study: a laboratory experiment, survey, observation, or quasi-experiment. Uses IMRaD structure: Introduction, Method, Results, Discussion. The most common type assigned in research methods courses and the standard format for journal submission in psychology.
Literature Review Paper
Synthesizes existing research on a topic rather than reporting new data. No method or results sections. After the introduction, proceeds through thematically organized review sections, then a conclusion. Assigned to demonstrate critical engagement with the field’s published evidence.
Theory / Conceptual Paper
Develops or evaluates a theoretical position through argument and evidence review rather than original data. Structure is more flexible — organized around the theoretical argument being built. Common at graduate level and in philosophy of mind or clinical theory courses.
Case Study
Detailed examination of an individual, group, or event. Structure typically follows: introduction, case description, analysis (applying theory or diagnosis), discussion, and conclusion. Common in clinical, counselling, and educational psychology assignments.
Methodological Paper
Presents or evaluates a new research methodology, statistical technique, or measurement tool. After an introduction, proceeds through a detailed presentation of the methodology and a demonstration of its application. Primarily a graduate and professional publication type.
Thesis / Dissertation
An extended empirical or theoretical paper for degree completion. Expands the standard sections significantly, adds a dedicated literature review chapter distinct from the introduction, and typically includes a methodology chapter with epistemological positioning. University-specific format requirements apply.
This guide focuses primarily on the empirical research paper structure — the most commonly assigned type in psychology courses and the format most students need to understand first. The literature review paper structure receives its own section toward the end of this guide.
APA 7th Edition — The Format Standard That Governs Psychology Writing
The American Psychological Association’s Publication Manual is the governing authority for academic writing format in psychology and the behavioral sciences. The current 7th edition, published in October 2019, introduced several changes from the 6th edition that students and instructors are still encountering. According to the Purdue Online Writing Lab’s APA General Format guide, the 7th edition was specifically designed with modern word-processing programs in mind — most default settings in Microsoft Word and Google Docs already comply.
Complete Page Order — Every Element in the Correct Sequence
APA format specifies the order of pages in a research paper, not just the content of each section. Starting a new element in the wrong position — or attaching tables at the end rather than integrating them into the text, or reversing the order of the references and appendices — is a formatting error independent of how well-written each individual section is.
Title Page — Page 1
Always the first page. Includes paper title, author name(s), affiliation, course number and name (student papers), instructor name (student papers), and due date. Page number “1” appears in the upper right corner. No running head required for student papers.
Abstract — Page 2 (when included)
When required, the abstract always appears on its own page immediately after the title page. “Abstract” is bold and centered at the top. The paragraph follows with no indent. Keywords appear on a new line below the paragraph, preceded by the italicized word “Keywords:” followed by three to five lowercase, comma-separated terms.
Paper Body — Beginning on Page 2 or 3
The body begins on the next page after the abstract (or on page 2 if no abstract). The paper title is repeated, centered and bold, at the top of the first body page. The introduction begins immediately below — there is no heading labeled “Introduction.” The paper title on the first body page performs that function.
References — New Page After the Discussion
The references list begins on a new page. “References” is bold and centered at the top — no italics, no quotation marks, not underlined. Entries are listed alphabetically by first author’s surname. Each entry uses a hanging indent (first line flush left, subsequent lines indented 0.5 inch). Double-spaced throughout.
Footnotes — New Page After References (if any)
Content footnotes providing supplemental information that would disrupt the text are listed on their own page after the references, not at the bottom of individual pages (unless the paper is being formatted for submission). Most student papers do not use footnotes — use parenthetical information in the text or an appendix instead.
Tables and Figures — Integrated or at the End
For student papers, tables and figures may appear either embedded in the body text (after the first in-text reference to them) or on separate pages after the references. For manuscripts submitted for publication, tables and figures typically go after the references on their own pages. Follow your instructor’s preference.
Appendices — Final Section
Appendices appear after tables and figures (or after the references if no tables or figures section exists). Each appendix begins on a new page, labeled “Appendix A,” “Appendix B,” etc. — or simply “Appendix” if there is only one. Appendices hold supplementary material: complete survey instruments, stimuli, additional tables, or detailed coding systems.
The Title Page — What APA 7 Requires for Student Papers
The title page of an APA 7 student paper is simpler than the professional format and simpler than APA 6 required. No running head is included at the top of student papers (unless the instructor requests one). The page number “1” appears in the upper right header corner. All content on the title page is centered and double-spaced.
Student Title Page — Elements in Order (Top to Bottom)
Paper title — Three to four lines from the top of the page. Centered, bold, title case. The title should be specific and informative — it tells a reader exactly what the paper is about without abbreviations. APA recommends no more than 12 words, though this is a guideline, not a rule. Bad title: “A Study on Memory.” Better title: “The Effect of Sleep Deprivation on Working Memory Performance in Undergraduate Students.”
Author name(s) — On the next line, centered, not bold. First name, middle initial (if using), last name. No titles (Dr., Prof.) or credentials (PhD, MSc). For multiple authors, list all names on the same line separated by commas, with “and” before the final name.
Institutional affiliation — Department and institution, centered, not bold. Example: “Department of Psychology, University of Edinburgh.”
Course number and name — Centered, not bold. Example: “PSYC 3201: Research Methods in Psychology.”
Instructor name — Confirm preferred name and honorific with your instructor. Example: “Dr. Sarah Kim” or “Professor Adeyemi.” Centered, not bold.
Due date — APA recommends writing the month in full: “April 15, 2025.” Centered, not bold.
The Abstract — Summarizing the Whole Paper in 250 Words
The abstract is the most-read section of any published psychology paper, because it is what appears in database search results and determines whether readers proceed to the full text. For student papers, it is often the most under-invested section — written in five minutes before submission after hours were spent on the body. That investment ratio should be reversed for any paper where an abstract is required.
Maximum words in an APA 7 abstract
The abstract must convey the paper’s entire research story — problem, method, findings, and conclusions — in a single unindented paragraph of 150 to 250 words. Write it after completing the paper. Every word must earn its place: the abstract has no room for introductory throat-clearing, hedging language, or restating what is obvious from context.
PROBLEM / PURPOSESleep deprivation is a common condition among undergraduate students that has been associated with reduced academic performance, yet its effect on specific cognitive domains remains incompletely understood. METHODThis study examined the effect of 24-hour sleep deprivation on working memory capacity in a sample of 48 undergraduate psychology students (Mage = 20.3, SD = 1.8; 31 women). Participants completed the n-back task under both sleep-deprived and rested conditions in a within-subjects counterbalanced design. RESULTSSleep-deprived participants showed significantly lower accuracy on the 2-back condition compared to rested performance (M = 0.68 vs. 0.81, p < .001, d = 0.74), with no significant difference on the 1-back condition. CONCLUSIONThese findings indicate that sleep deprivation selectively impairs higher-load working memory performance rather than basic memory maintenance, with implications for academic scheduling and student wellbeing interventions.
Note how the abstract covers all four required elements (purpose, method, results, conclusion) with specific values (sample size, means, p-value, effect size) in under 200 words. No section headings appear within the abstract paragraph itself.Keywords appear on the line immediately after the abstract paragraph. Indent this line 0.5 inches as if starting a new paragraph. The word “Keywords:” is italicized and followed by a colon, then three to five terms in lowercase, separated by commas. Keywords should reflect the key variables, population, and method of your study — they are the terms under which you want the paper discoverable in a database search.
APA 7 does not require abstracts for student papers by default — the official guidance states that student papers usually do not need one. However, most psychology instructors do require an abstract for research papers over a certain length, laboratory reports, and all dissertation work. Check your specific assignment instructions. If your instructor requires an abstract, include it. If the instructions are silent, ask before omitting it — including an unnecessary abstract is a far smaller error than omitting a required one.
The Introduction — From Broad Context to Specific Hypothesis
The introduction section of a psychology research paper has a specific job that many students misunderstand: it does not summarize everything known about a topic. It builds a logical case for your specific research question, using selectively cited prior research to establish why your study was necessary and what you predicted. The funnel metaphor captures the ideal structure: broad context at the top, narrowing through increasingly focused literature, arriving at a precise research question or hypothesis at the bottom.
Introduction
What It Must Contain
- Opening statement establishing the topic’s broader context or significance
- A selective review of directly relevant prior research — not exhaustive, but complete enough to show the gap
- Clear identification of the gap, problem, or unanswered question your study addresses
- The theoretical framework or model guiding your predictions (if applicable)
- A clear, specific research question
- Directional hypotheses stated explicitly (for quantitative studies)
What Does Not Belong Here
- A definition of psychology or broad statements about why psychology matters
- Everything ever published on the topic — only directly relevant literature
- Your results or findings (these belong in Results)
- Your interpretation of prior studies’ findings without connecting them to your question
- Padding sentences like “this paper will discuss…” — show rather than announce
- A hypothesis stated as a question rather than a prediction (“will sleep affect memory?” is a research question; “it was hypothesized that sleep deprivation would impair memory” is a hypothesis)
The introduction is the only section in an empirical APA paper that does not carry a heading — the paper title repeated at the top of the first body page signals its start implicitly. Every other major section (Method, Results, Discussion) is labeled with a Level 1 heading. This is an APA convention students frequently violate by adding an “Introduction” heading. Do not add it.
Writing the Hypothesis — The Most Critical Sentence in the Paper
The hypothesis is the sentence that everything else in the paper is built around. The introduction establishes why it was worth testing. The method describes how it was tested. The results report what was found. The discussion interprets what those findings mean for the hypothesis. A poorly formed hypothesis creates cascading problems through every subsequent section.
The Method Section — Describing What You Did With Enough Detail for Replication
The method section has one governing criterion: it should be detailed enough that an independent researcher could replicate your study from the description alone. This criterion determines what to include (everything procedurally consequential) and what to exclude (irrelevant details that do not affect replicability). The method section is written in the past tense — you are describing what was done, not what to do.
According to the Purdue OWL’s guidance on types of APA papers, the method section typically contains three subsections for quantitative empirical papers: Participants, Materials or Measures (sometimes called Apparatus), and Procedure. Each uses a Level 2 heading.
Method
Participants Subsection
Total number of participants. Demographic information relevant to the study (age as M and SD, gender, ethnicity where methodologically relevant, not as boilerplate). Recruitment method. Whether they were compensated (and how). Inclusion and exclusion criteria. For student participant pools: describe the pool (e.g., “undergraduate psychology students who received course credit”).
If any participants were excluded after initial recruitment, report the original N and how many were excluded and why, so that the final analytic sample is clearly identified.
Materials / Measures Subsection
Every instrument, questionnaire, apparatus, or stimulus used. For standardized psychological measures: full name, acronym, number of items, scale range, what the construct is, and reliability data (Cronbach’s alpha from prior research or your own sample). Example: “Anxiety was measured using the Generalized Anxiety Disorder 7-item Scale (GAD-7; Spitzer et al., 2006). The GAD-7 contains seven items rated on a 4-point scale (0–3), with total scores ranging from 0 to 21. It has demonstrated good internal consistency (α = .92) in clinical populations.”
Participants were tested individually in a sound-attenuated laboratory room. Upon arrival, they provided written informed consent and completed a pre-session questionnaire assessing caffeine intake and baseline mood. The session comprised two blocks, counterbalanced across participants: one completed after a full night’s sleep (rested condition) and one completed following 24 hours of wakefulness (sleep-deprived condition), with blocks separated by a one-week washout period. In each block, participants completed the n-back task on a 17-inch monitor positioned at 60 cm viewing distance. The task comprised 120 trials per condition (1-back and 2-back), with accuracy and reaction time recorded automatically by the E-Prime 3.0 software. Participants received no performance feedback during the task. Following task completion, participants rated subjective fatigue on the Karolinska Sleepiness Scale. Total session duration was approximately 45 minutes per block.
Note the chronological sequence, past tense throughout, and level of detail that would allow replication — what software, what equipment, what distances, what timing, what was counterbalanced and why. No interpretation of findings appears here.Many student method sections describe participants, materials, and procedure but omit a statement of the analytic approach. Add a brief Data Analysis paragraph — or integrate it at the end of the Procedure — specifying which statistical tests were used and why: “Data were analyzed using SPSS Version 28. A paired-samples t-test was used to compare mean accuracy between the rested and sleep-deprived conditions, with an alpha level of .05. Effect size was calculated as Cohen’s d.” This demonstrates that you selected your analysis deliberately rather than finding it in a textbook after collecting data.
The Results Section — Reporting Findings Without Interpretation
The results section reports what you found — precisely, completely, and without interpretation. The single rule that distinguishes a well-structured results section from a poor one is the separation between reporting (results) and meaning-making (discussion). Any sentence that begins “this suggests that…” or “this shows that…” or “this is consistent with the hypothesis that…” does not belong in the results section. Those sentences belong in the discussion.
Results
What Results Must Include
- Descriptive statistics first: means (M) and standard deviations (SD) for all key variables
- Preliminary analyses if any (reliability checks, normality testing, assumption checks)
- Results for each hypothesis tested, in the order they were stated in the introduction
- Test statistic, degrees of freedom, p-value, and effect size for every inferential test
- A statement of whether each hypothesis was supported or not
- Tables or figures for complex data — referenced from the text (“see Table 1”)
Statistical Reporting Format (APA 7)
- t-test: t(df) = value, p = value, d = value
- ANOVA: F(dfbetween, dfwithin) = value, p = value, η² = value
- Correlation: r(df) = value, p = value
- Chi-square: χ²(df, N = n) = value, p = value
- All test statistics italicized; p-values reported exactly (“p = .032”) not as “p < .05” unless below .001 (“p < .001”)
- Effect sizes are now required in APA 7 for every inferential test — d, η², r, ω² as appropriate
Descriptive statistics for n-back task accuracy in each condition are presented in Table 1. A paired-samples t-test revealed a significant difference in 2-back accuracy between the rested (M = 0.81, SD = 0.09) and sleep-deprived conditions (M = 0.68, SD = 0.11), t(47) = 6.24, p < .001, d = 0.74, supporting the hypothesis that sleep deprivation would impair higher-load working memory performance. In contrast, no significant difference was found for 1-back accuracy between rested (M = 0.91, SD = 0.06) and sleep-deprived conditions (M = 0.89, SD = 0.07), t(47) = 1.08, p = .29, d = 0.15, indicating that basic memory maintenance was not significantly affected by sleep deprivation.
Notice: descriptive statistics are reported before inferential statistics, all test statistics are italicized, p-values are exact, effect sizes are included, and the final sentence states whether the hypothesis was supported — but offers no interpretation of why. That belongs in the Discussion.Interpreting findings in the results section is the single most consistent structural error in undergraduate psychology papers. “The significant difference in 2-back accuracy suggests that sleep is important for higher cognitive functions” — this is interpretation and belongs in the discussion. The results section reports numbers and states whether the finding was statistically significant. Nothing more.
A useful test: if a sentence contains the words “suggests,” “indicates,” “shows,” “supports the theory,” or “is consistent with,” it is probably interpretation and belongs in the discussion. If it contains a number and a test statistic, it probably belongs in the results.
The Discussion Section — Interpretation, Limitations, and Implications
The discussion is where your thinking becomes visible. After a results section of constrained, factual reporting, the discussion gives you space to explain what those facts mean — why they matter, whether they confirm what you expected, how they fit into the broader research landscape, and what their limitations constrain you from claiming. It is typically the most intellectually challenging section to write well, and the most heavily weighted in marking.
Discussion
Discussion Structure (In Order)
- Opening statement: State whether your hypothesis was supported — concisely and directly. This is the first sentence, not the second paragraph.
- Interpret key findings: What do your results mean? Why might they have occurred? What do they tell us about the cognitive or behavioral process under investigation?
- Integrate with prior literature: Compare your findings to the studies reviewed in your introduction. Do your results confirm, extend, or contradict what was previously found? Engage with any discrepancies.
- Limitations: Discuss aspects of the design, sample, or measures that constrain your conclusions. Be specific — not “small sample size is a limitation” but “the sample was drawn entirely from first-year psychology undergraduates, limiting generalizability to older adults or clinical populations.”
- Implications: Theoretical implications (what the findings suggest for the theory or model you were testing) and/or practical implications (what they mean for clinical practice, education, policy, or other real-world applications).
- Future directions: What specific follow-up research would advance understanding? Be concrete — not “future research could explore this further” but “future studies should examine whether the effect persists with partial sleep restriction (4–6 hours) using comparable memory tasks.”
- Conclusion: One to two sentences articulating the main contribution of the study. The last sentence of the discussion is the last impression the reader has of your paper — make it substantive, not generic.
What Makes a Discussion Stand Out
The discussions that receive the highest marks engage genuinely with discrepant findings — they do not pretend the results were exactly as predicted or wave away unexpected outcomes. If your results partially supported your hypothesis, or if they contradicted a prior finding you cited in your introduction, the discussion is where you work through why that might be.
Limitations that are specific and tied to their consequences for interpretation demonstrate more sophisticated thinking than generic limitations. “The within-subjects design introduces potential order effects, which was partially mitigated by counterbalancing but may not have been fully controlled” is better than “a limitation is that it was a within-subjects design.”
Implications should be scaled to the evidence. An undergraduate study with 48 participants cannot justify a clinical practice recommendation. It can justify a theoretical point and a methodologically refined follow-up study.
The present study found partial support for the hypothesis that 24-hour sleep deprivation would impair working memory performance. Sleep deprivation significantly reduced accuracy on the 2-back condition but had no significant effect on the 1-back condition, suggesting that the effect of sleep loss is selective to higher working memory loads rather than representing a general memory decrement. This pattern is consistent with the prefrontal cortex hypothesis of sleep deprivation effects (Harrison & Horne, 2000), which predicts that tasks requiring active maintenance and manipulation of information — characteristics of higher n-back conditions — should be more vulnerable to sleep loss than tasks requiring only simple retention. The finding extends prior work by Drummond et al. (2004), who similarly found load-dependent effects of sleep deprivation on verbal working memory using neuroimaging measures.
Notice: opens immediately with the hypothesis verdict, identifies the specific pattern that is theoretically interesting (selectivity to higher load), proposes a mechanism (PFC hypothesis), and connects to two specific prior studies — not just a general statement that the results “aligned with the literature.”The References Section — APA 7 Formatting for the Most Common Source Types
The references section is not a bibliography — it contains only sources that are actually cited in the text of the paper, and it must contain every source cited in the text. A one-to-one correspondence between in-text citations and reference list entries is mandatory. According to the APA Style official sample papers resource, reference entries vary by source type but share a consistent underlying structure: Author. (Year). Title. Source. DOI or URL.
| Source Type | APA 7 Format | Example |
|---|---|---|
| Journal Article (with DOI) | Author, A. A., & Author, B. B. (Year). Title of article. Journal Name, Volume(Issue), page–page. https://doi.org/xxxxx | Harrison, Y., & Horne, J. A. (2000). The impact of sleep deprivation on decision making. Journal of Sleep Research, 9(3), 219–226. https://doi.org/10.1046/j.1365-2869.2000.00226.x |
| Book | Author, A. A. (Year). Title of work: Capital letter also for subtitle. Publisher. | Baddeley, A. D. (2007). Working memory, thought, and action. Oxford University Press. |
| Edited Book Chapter | Author, A. A. (Year). Title of chapter. In E. E. Editor (Ed.), Title of book (pp. page–page). Publisher. | Smith, J. A. (2015). Qualitative methods in health psychology. In M. Johnston & C. Johnston (Eds.), Health psychology (pp. 45–68). Wiley-Blackwell. |
| Report / Government Document | Author, A. A., or Group Name. (Year). Title of report. Publisher. URL | National Institute of Mental Health. (2023). Mental health statistics 2023. U.S. Department of Health and Human Services. https://www.nimh.nih.gov/ |
| Webpage | Author, A. A. (Year, Month Day). Title of page. Site Name. URL | American Psychological Association. (2020, October 1). APA style 7th edition changes. https://apastyle.apa.org/ |
| Dissertation / Thesis | Author, A. A. (Year). Title of dissertation [Doctoral dissertation, University Name]. ProQuest Dissertations and Theses. URL | Williams, R. T. (2022). Cognitive effects of chronic sleep restriction in adolescents [Doctoral dissertation, University of Melbourne]. https://doi.org/xxxxx |
The First Line Is Flush, Subsequent Lines Indent
Unlike body text paragraphs (which indent the first line), reference entries use a hanging indent: the first line is flush with the left margin, and all subsequent lines are indented 0.5 inches. In Microsoft Word: select all reference entries, go to Paragraph > Indentation > Special > Hanging > 0.5 in. In Google Docs: use Format > Align & indent > Indentation options.
Surname First, Then Initials — Up to 20 Authors
APA 7 changed the rule for multiple authors: list all authors up to 20. For 21 or more, list the first 19, insert an ellipsis (…), then the last author. Use ampersand (&) before the last author in a reference entry (but “and” in running text: “Harrison and Horne (2000) found…”). Do not use “et al.” in reference list entries unless there are 21+ authors.
Include a DOI When Available — Format as a Hyperlink
APA 7 requires DOIs to be formatted as hyperlinks: https://doi.org/xxxxxx — not “doi:” or “DOI:” prefixes. If no DOI exists, include a URL if the source was retrieved online. If a source was retrieved from a physical book or a database that doesn’t provide a persistent URL, no DOI or URL is needed (APA 7 dropped the “retrieved from” requirement for most sources).
Full Journal Name in Italics — Volume Number Also Italicized
Never abbreviate journal titles in APA references. Write the full journal name in italics. The volume number is also italicized; the issue number follows in parentheses and is not italicized. Example: Journal of Abnormal Psychology, 129(4), 312–320. Many students italicize the issue number — this is wrong.
Sort by First Author’s Surname — With Specific Rules for Ties
References are listed alphabetically by the first author’s surname. When two references have the same first author, sort by second author. When the same author(s) appear in multiple entries, sort by year (earliest first). Same author(s) and same year: add a letter suffix to the year: (2020a), (2020b) — used in both the reference list and in-text citations.
Sentence Case for Titles — Title Case for Journals
In APA references, book and article titles use sentence case: only capitalize the first word of the title, the first word after a colon, and proper nouns. Journal names use title case (capitalize all major words). This is the opposite of what many students instinctively do — they capitalize article titles the same way they capitalize journal names.
Heading Levels in APA 7 — Formatting Rules and When to Use Each
APA 7 provides five heading levels that create a visual hierarchy in your paper. Most undergraduate and many graduate-level papers use only the first two or three. Using more heading levels than the paper’s structure warrants creates the appearance of complexity without substance — a paper divided into many small subsections often suggests poor paragraph-level organization rather than sophisticated structure.
| Level | Format | Used For |
|---|---|---|
| Level 1 | Centered, Bold, Title Case — paragraph begins on the next line | Major sections: Method, Results, Discussion, References. NOT used for “Introduction” — the paper title functions as the introduction heading. |
| Level 2 | Left-aligned, Bold, Title Case — paragraph begins on the next line | Subsections within a major section: Participants, Materials, Procedure (within Method); subsections within Discussion when organized thematically. |
| Level 3 | Left-aligned, Bold Italic, Title Case — paragraph begins on the next line | Sub-subsections within a Level 2 section. Rare in undergraduate papers. Example: under Measures, separate subsections for each instrument used. |
| Level 4 | Indented, Bold, Title Case, Ending with Period. — text continues on same line | Further subdivision within Level 3. Found in complex dissertations and lengthy professional papers. Essentially never needed in coursework. |
| Level 5 | Indented, Bold Italic, Title Case, Ending with Period. — text continues on same line | The deepest level of subdivision. Reserved for very complex papers with multiple parallel hierarchies. Virtually never used in student papers. |
APA 7 states that you should use the minimum number of heading levels necessary to reflect the structure of your paper. If your paper only needs Level 1 headings (for Method, Results, Discussion) and Level 2 headings (for Participants, Materials, Procedure), use only two levels — starting at Level 1 and Level 2. You do not begin at Level 2 and work up to Level 4 just because you have subsections. The levels are absolute, not relative to your paper’s specific hierarchy.
Literature Review Papers — A Different Structure From Empirical Reports
A standalone literature review paper in psychology is a fundamentally different assignment from an empirical research paper. It does not have a method, results, or discussion section in the IMRaD sense. Its purpose is to synthesize and critically evaluate a body of research on a specific question — showing where the evidence is strong, where it is contested, what methodological debates exist, and what remains unresolved.
Title Page and Abstract
Same format as an empirical paper. The abstract for a literature review covers: the topic and scope of the review, the databases and search terms used (if systematic), the key themes or conclusions, and the implications for theory or practice. It does not summarize a method and results section — it summarizes the argument the paper builds.
Introduction
Introduces the topic and its significance, defines the specific question the review addresses, and explains how the review is organized (thematically, chronologically, by subpopulation, etc.). Ends with a statement of what the review will demonstrate or argue — the equivalent of a thesis statement rather than a directional hypothesis.
Body — Thematically Organized Review Sections
The body of a literature review is divided by theme, question, population, time period, or methodology — the organizational principle should emerge from the literature itself, not be imposed arbitrarily. Each Level 1 or Level 2 heading represents a distinct aspect of the review question. Within each section, studies are synthesized by point, not summarized one by one — the evidence drives the organization, not individual study descriptions.
Conclusion
Synthesizes the main findings across the review’s sections, states what the weight of evidence supports, identifies the most significant unresolved questions, and proposes specific future research directions. The conclusion of a literature review is the paper’s major intellectual contribution — not a summary of what was reviewed but a statement of what the review demonstrates.
References
Same format as an empirical paper. Literature reviews typically have substantially more references than empirical reports — often 20 to 50 for an undergraduate review, and 50 to 150 or more for graduate-level or dissertation literature reviews. Every source cited in the text must appear in the reference list.
Literature Review vs. Empirical Report — The Key Structural Differences
The Most Common Structural Errors in Psychology Research Papers
Assessment feedback in psychology research methods courses clusters around a predictable set of structural and organizational errors. Most of these are not content failures — they are structural failures that could be corrected without changing the research itself. Understanding them before writing is far more efficient than discovering them in feedback after submission.
Interpreting in Results, Reporting in Discussion
Results section contains phrases like “this suggests” or “this is consistent with theory.” Discussion section restates numbers without explaining what they mean. The worst version does both simultaneously.
Introduction Without a Funnel Structure
Broad review of the field without narrowing to a specific gap. Literature reviewed has no clear connection to the hypothesis. The hypothesis appears without theoretical grounding.
Method Too Brief for Replication
Participants described without sample size or demographics. Measures named without reliability information. Procedure described in three sentences when it requires a paragraph per condition.
Discussion Lacks Limitations
No acknowledgment of design limitations, sample constraints, or measurement issues — or limitations listed generically without explaining how they affect the conclusions. This is a consistent high-stakes marking criterion.
References Don’t Match Citations
Sources cited in text that don’t appear in the reference list. Reference list entries with no in-text citation. Formatting inconsistent between entry types. This is checked by markers as a standard quality step.
Missing Effect Sizes
APA 7 requires effect size for every inferential test. Many students report t-values, df, and p-values but omit Cohen’s d or η². This omission is a marking criterion in most quantitative psychology courses at undergraduate and graduate level.
Relative ease of fixing common structural problems in psychology research papers — from mechanical formatting issues (easy) to conceptual discussion depth (hardest). “Easy” means a straightforward rule to apply; “hardest” means it requires genuine thinking about your specific research, not just following a template.
Quick-Reference Section Checklist — Before You Submit
Use this checklist immediately before submission. Run through it section by section rather than reviewing the paper as a linear read — you are more likely to catch structural and formatting issues in a targeted review than in a content-focused re-read.
Title Page
Page number “1” in upper right. Title centered, bold, specific. Author: no credentials. Affiliation includes department. Course number and name complete. Instructor name correct (confirm spelling and honorific). Due date: month spelled out. No running head unless requested.
Abstract (if required)
“Abstract” bold centered at top. Single paragraph, not indented. Between 150 and 250 words — count and confirm. Covers purpose, method, results, and conclusions. Keywords listed below on a new indented line, “Keywords:” italicized, terms lowercase.
Introduction
Paper title repeated bold centered at top of first body page. No “Introduction” heading. Funnel structure: broad context → specific literature → gap → research question → hypothesis. Hypothesis is directional, specific, and connected to a theoretical rationale. Past tense for prior studies; present tense for established facts.
Method
“Method” is a Level 1 heading. Subsections (Participants, Materials, Procedure) are Level 2 headings. Participants: N, demographics, recruitment, compensation, inclusion/exclusion. Measures: full name, acronym, items, scale, reliability. Procedure: chronological, past tense, enough detail for replication. Data analysis approach stated. Ethical approval mentioned if applicable.
Results
“Results” Level 1 heading. Descriptive statistics (M, SD) reported before inferential tests. Every test includes: test statistic, df, p-value (exact), effect size. Tables/figures referenced by number (“see Figure 1”). No interpretation — no “suggests,” “indicates,” “is consistent with.” Hypothesis verdict stated.
Discussion
“Discussion” Level 1 heading. Opens with hypothesis verdict. Key findings interpreted. Prior literature integrated — specific studies engaged, not just “consistent with prior research.” Limitations are specific, not generic. Implications are scaled to the evidence (no overclaiming). Future directions are concrete. Conclusion is substantive.
References
“References” bold centered on new page. Hanging indent applied to all entries. Alphabetical by first author surname. Every in-text citation has a reference entry; every reference entry has a corresponding in-text citation. DOIs formatted as hyperlinks. Journal titles in full, not abbreviated. Article titles in sentence case; journal names in title case. Volume italicized; issue number in parentheses, not italicized.
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Verb Tense in APA Psychology Papers — The Rules That Most Students Miss
Verb tense is a structural element that students rarely see addressed in guides but that examiners notice immediately when it is wrong. APA style has specific tense conventions for each section of a psychology paper, reflecting logical distinctions about when things happened and what their status is now.
Past Tense for Prior Studies — Present for Established Facts
Describe what previous researchers did and found in the past tense: “Harrison and Horne (2000) found that…” Describe currently accepted facts or established theories in the present tense: “Working memory is a cognitive system that…” Your hypothesis is stated in the past tense because you formed it before the paper was written: “It was hypothesized that…”
Past Tense Throughout
The method describes what was done — past tense throughout. “Participants were recruited from…” “The questionnaire was administered…” “Data were analyzed using…” Do not use present tense instructions (“Participants complete…”) unless writing a procedure for a study that has not yet been conducted.
Past Tense for Findings — Present for Tables and Figures
“Sleep-deprived participants showed significantly lower accuracy…” — past tense. “Table 1 presents descriptive statistics for both conditions” — present tense when referring to a table or figure currently visible to the reader. This is a subtle but correct APA distinction that most students miss.
Mixed Tense — Requires the Most Attention
Your own findings: past tense (“the present study found…”). Prior research you are relating to yours: past tense (“Harrison and Horne (2000) found…”). Your interpretation and conclusions: present tense (“these findings suggest that…”). Implications: present or future (“clinicians may consider…” or “future studies should…”).
No Running Text in References — Tense Not Applicable
Reference list entries do not contain running prose, so tense conventions do not apply. The year of publication in a reference is always in parentheses immediately after the author name — this is a date, not a tense marker.
Past Tense for What Was Done and Found
The abstract describes what you did and what you found — both in the past tense: “This study examined…” “Participants completed…” “Sleep-deprived participants showed…” Conclusions may be in the present tense: “These findings suggest that…” The abstract summarizes a completed study, so past tense predominates.
Tables and Figures in Psychology Papers — APA 7 Formatting Rules
Tables and figures are numbered separately and sequentially: Table 1, Table 2, Figure 1, Figure 2. Both receive a number and a title. The title is in italics, title case, and placed below the table number (not above the table). Notes appear below the table or figure, beginning with the word “Note.” in italics followed by a period.
Table Formatting — APA 7 Rules
The word “Table” followed by the number (not bold, not italics) appears above the table. The title in italics, title case, appears on the next line. The table body uses horizontal lines only — no vertical lines separating columns. Abbreviations used in tables are defined in a note below the table. Tables report complex data that would take multiple paragraphs to describe in prose. If a table only has two or three data points, embed them in the text instead.
Figure Formatting — APA 7 Rules
The word “Figure” followed by the number (bold) appears above the figure. The title (italics, title case) also appears above the figure on the same or following line. A brief description explaining what the figure shows appears as a caption. Figures include bar charts, line graphs, scatter plots, photographs, drawings, and conceptual diagrams. Use figures when data patterns are more clearly shown visually than in tables or prose — particularly for interactions, distributions, and longitudinal trends.
A Note on Tables and Figures for Student Papers
APA 7 allows student papers to embed tables and figures within the body text (immediately after the first mention in the text) rather than collecting them at the end. Most instructors prefer embedded placement — it is easier to read. Check your assignment instructions. If the instructions specify that tables and figures go at the end (professional paper style, for manuscript submission simulation), follow that instruction.
Every table and figure must be cited in the text before it appears: “descriptive statistics for both conditions are presented in Table 1” or “as shown in Figure 1, accuracy declined with increasing n-back load.” A table or figure that is never cited in the text should either be cited or removed.
Frequently Asked Questions About Structuring a Psychology Research Paper
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