A research paper follows a predictable structure: a clear title, an abstract summarizing the work, an introduction that frames the problem, a methods section, results, a discussion of what those results mean, and a reference list at the end. The exact layout depends on your field and the style guide you’re using (MLA, APA, Chicago, or a journal’s own rules), but the underlying architecture is remarkably consistent across disciplines.
The Standard Sections, in Order
Most research papers follow what’s known as the IMRaD structure: Introduction, Methods, Results, and Discussion. This format has been the dominant model in scientific and social science publishing for decades. A paper is considered to use this structure when it includes headings (or synonyms) for methods, results, and discussion, with an introduction present even if it isn’t explicitly labeled.
Here’s what each section does:
- Title page or header: Identifies the paper, the author(s), and the institutional affiliation. Some styles (like MLA) skip a separate title page entirely and place this information on the first page.
- Abstract: A standalone summary of the entire paper, typically 200 to 250 words. Most journals require a structured abstract broken into Background, Methods, Results, and Conclusions. The abstract should explain why the research was done, what was found, and why it matters, in language a general reader can follow.
- Introduction: Sets up the problem your paper addresses. It moves from a broad statement about the field to the specific gap in knowledge your work fills, ending with your research question or thesis.
- Methods: Describes exactly what you did, in enough detail that someone else could replicate it. This includes your study design, participants or materials, and how you analyzed the data.
- Results: Reports what you found, without interpreting it. Tables and figures go here or are referenced here.
- Discussion: Interprets the results, explains their significance, acknowledges limitations, and connects your findings back to the broader field.
- References or Works Cited: Lists every source you cited in the paper.
Humanities papers (literary analysis, history, philosophy) often skip the Methods and Results structure in favor of a thesis-driven argument with supporting sections. But the backbone is the same: introduce the question, present your evidence, interpret it, and cite your sources.
How It Looks on the Page
Regardless of style guide, most research papers share a few visual basics. The text is double-spaced (or single-spaced for some journal submissions). The font is readable and neutral, with Times New Roman at 12-point being the most common default. Paper size is standard US letter: 8.5 by 11 inches. Margins are typically one inch on all sides.
In MLA format, you don’t create a separate title page unless your instructor asks for one. Instead, the upper left corner of the first page lists your name, instructor’s name, course, and date, all double-spaced. The title is centered on the next line, written in title case with no bold, italics, or quotation marks. Every page gets a header in the upper right corner with your last name and the page number. The first line of each paragraph is indented half an inch using the Tab key.
Chicago style looks different. It often uses footnotes: small superscript numbers in the text that point to shortened citations at the bottom of each page. These note numbers start at 1 and run consecutively through the entire paper, always placed after punctuation (except dashes). A full bibliography appears at the end. Block quotations, footnotes, and bibliography entries may be single-spaced even when the main text is double-spaced.
APA style falls somewhere between the two, using in-text parenthetical citations with a reference list at the end, plus a title page with a running head. The specific rules vary, but the visual impression is similar: clean, uniform, and easy to scan.
Tables, Figures, and Captions
Tables and figures are numbered consecutively in the order they first appear in the text. If your paper has only one table or one figure, you don’t number it. Each table gets a brief, self-explanatory title placed above it (not below). That title should contain enough context, like the population studied, dates, or location, that a reader could understand the table without reading the surrounding text. Avoid abbreviations in titles; if you must use one, define it in a footnote beneath the table.
Figures follow similar rules. They’re numbered in order, and their captions are placed below or collected after the tables in a manuscript. If you’re creating figures digitally, vector-based formats (like those from Adobe Illustrator) hold up better than raster images when resized. For initial submissions, a resolution of 300 dots per inch is standard. PowerPoint graphics are generally not accepted by journals.
How Citations and References Work
Every claim you make that comes from another source needs a citation in the text and a corresponding entry in your reference list or bibliography. These are not the same thing. A reference list includes only the sources you actually cited in your paper. A bibliography can also include sources you consulted for background but didn’t directly cite. APA style uses a reference list exclusively. MLA uses a “Works Cited” page, which functions the same way. Chicago style typically uses a bibliography, which may include both cited and consulted works.
All tables, figures, and references should be cited in numerical or alphabetical order depending on your style guide. The key rule is consistency: every in-text citation matches an entry in the back matter, and nothing appears in the reference list that isn’t mentioned in the paper.
What Goes in an Appendix
An appendix holds supplementary material that supports your paper but would interrupt the flow if placed in the main text. Common examples include survey instruments, detailed participant demographics, raw data tables, or lengthy technical specifications. Each appendix goes on its own page, labeled “Appendix” followed by a capital letter if there are multiple (Appendix A, Appendix B). A descriptive title appears on the next line.
Any tables or figures inside an appendix get their own labeling system. A table in Appendix B would be labeled “Table B1,” not “Table 5” or whatever number comes next in the main paper. Even if there’s only one appendix, its visuals use the letter A (so “Figure A1,” “Figure A2”) to keep them distinct from the main paper’s figures. All appendices come after the reference list, footnotes, and any end-of-document tables or figures.
What Makes a Paper Look Professional
Beyond following the right style guide, a few details separate polished papers from rough ones. Define technical terms the first time you use them. Do the same with abbreviations and acronyms. Use one space after periods, not two. Avoid decorative or unusual fonts. Keep your heading hierarchy consistent: if your first major section is an H2, every major section should be an H2, with subsections as H3.
Your abstract deserves special attention because it’s the first thing anyone reads. Structure it to move from background to objectives to results to conclusions, even if the journal doesn’t require labeled subsections. A good abstract tells the reader, in under 250 words, exactly what they’ll find in the paper and why it matters.
The overall visual impression should be uniform. Consistent spacing, aligned margins, properly formatted citations, and clearly labeled visuals signal that the content inside is equally careful. Readers and reviewers notice when formatting is sloppy, and they make assumptions about the rigor of the work itself.