A Guide to American Psychological Association (APA) Style

The American Psychological Association (APA) style is a widely used format for writing academic and research papers, particularly in the fields of psychology, education, nursing, and the social sciences. It provides a standardized structure for written communication, ensuring that sources are credited clearly and consistently, and that papers are presented in a uniform manner. This guide outlines the fundamental components of APA style, focusing on general formatting, in-text citations, and the reference list.

General Paper Format

APA style dictates specific rules for the overall appearance of a research paper. Adhering to these guidelines helps present a professional and organized document.

• Typeface: APA recommends using a sans serif font such as 11-point Calibri, 11-point Arial, or 10-point Lucida Sans Unicode. Alternatively, a serif font like 12-point Times New Roman or 11-point Georgia is acceptable.
• Spacing: The entire paper should be double-spaced. This includes the title page, body, references, quotations, and footnotes.
• Margins: Use 1-inch margins on all sides of the page.
• Page Numbers: Insert a page number in the top right corner of every page, including the title page.
• Headings: APA uses five levels of headings to organize content. Level 1 headings are centered, bold, and use title case. Level 2 headings are left-aligned, bold, and use title case. Subsequent levels follow specific indentation and italicization rules.

In-Text Citations

When writing an APA paper, it is essential to give credit to the original authors of the works you are referencing. This is done through in-text citations, which appear within the body of the text and point the reader to the full entry in the reference list.

Paraphrasing

When you summarize or paraphrase an idea from a source, you must include the author's last name and the year of publication. This can be done in a narrative citation or a parenthetical citation.

Direct Quotations

When quoting a source directly, you must include the author, year, and the specific page number or paragraph number where the quote can be found.

For quotations of 40 words or more, format the quote as a block quotation. Start the block on a new line, indent it 0.5 inches from the left margin, and double-space it. Do not use quotation marks. The citation comes after the final punctuation mark.

Multiple Authors

The format for in-text citations changes based on the number of authors:

• One author: (Field, 2021)
• Two authors: (Field & Gale, 2021)
• Three or more authors: (Field et al., 2021)

The Reference List

The reference list appears at the end of the paper on a new page labeled "References" (centered and bold). It provides detailed information about every source cited in the text. The list should be arranged in alphabetical order by the first author's last name.

Each entry should use a hanging indent, where the first line is flush left and subsequent lines are indented 0.5 inches. Below are common examples of reference entries.

Journal Article

Format for a journal article includes the author, year of publication, article title, journal title (in italics and sentence case), volume number (in italics), issue number (in parentheses), page range, and DOI (if available).

Book

Format for a whole authored book includes the author, year, title (in italics and sentence case), and publisher.

Website

For websites, include the author, date, title of the page, site name (if different from the author), and a URL.

Writing Mechanics and Style

Beyond formatting and citations, APA style emphasizes clarity, conciseness, and inclusivity in writing.

• Conciseness: Avoid wordiness. Write clearly and directly, ensuring that every word contributes to the meaning of the sentence.
• Objectivity: Use bias-free language. Avoid assumptions about gender, sexual orientation, racial or ethnic identity, disability, or age. Use person-first language (e.g., "persons with disabilities") unless otherwise preferred by the group.
• Active Voice: Prefer the active voice ("The researchers conducted the study") over the passive voice ("The study was conducted by the researchers") to make the writing more dynamic and engaging.

Conclusion

Mastering APA style is a critical skill for students and professionals in the social sciences. It ensures that research is communicated with precision and integrity. By following the guidelines for formatting, citation, and writing style, authors can produce papers that are professional, credible, and easy for readers to navigate. Whether citing complex journal articles or formatting a simple reference list, attention to detail is the hallmark of high-quality academic writing.

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