What a peer-reviewed journal article is
A peer-reviewed (or refereed) article was checked by other experts in the field before it was published. Reviewers look at the methods, evidence, and conclusions, and the authors usually revise before acceptance. That process is why instructors trust these sources more than websites, news stories, or magazines.
| Source type | Written by | Reviewed by experts? | Best used for |
|---|---|---|---|
| Peer-reviewed journal article | Researchers and scholars | Yes, before publication | Evidence, data, and scholarly arguments |
| Trade or professional magazine | Practitioners and staff writers | Editors only | Current practice and industry news |
| Popular magazine or news | Journalists | Editors only | Background and current events |
| Website or blog | Anyone | Usually not | Ideas to follow up with better sources |
Not everything in a scholarly journal is peer reviewed. Editorials, book reviews, and letters to the editor usually are not, so check what kind of piece you are using.
Where to find good journal articles
- Start with your college library website. Use the main search box or the list of databases by subject. Your tuition already pays for access to articles that cost money elsewhere.
- Pick a database for your field. Common choices: Academic Search Complete (general), JSTOR (humanities and social sciences), PsycINFO (psychology), ERIC (education), CINAHL and PubMed (nursing and health), Business Source Complete (business), and Criminal Justice Abstracts.
- Turn on the filters. Check "Peer reviewed" or "Scholarly journals", set a date range (often the last five to ten years), and choose full text if you need it today.
- Use Google Scholar with your library. In Google Scholar settings, add your college under Library links so "Find it @ Library" links appear next to results.
- Request what you cannot open. If an article is not available, use your library's interlibrary loan service instead of paying for it.
- Ask a librarian. Most colleges offer chat, email, or appointments with a research librarian, and it is free.
Search smarter with keywords
- Break your topic into concepts: "social media use" + "sleep" + "college students".
- Combine with AND, OR, and quotation marks: ("social media" OR Instagram OR TikTok) AND sleep AND "college students".
- Use the database's subject terms. Open a good result and look at its subject headings, then search with those exact terms.
- Narrow or widen. Too many results: add a concept or a date limit. Too few: add synonyms with OR or remove a concept.
- Follow the citations. Check the reference list of a strong article for older sources, and use "Cited by" in Google Scholar to find newer studies that cite it.
("social media" OR Instagram OR TikTok) AND (sleep OR insomnia) AND ("college students" OR undergraduates)
How to tell if an article is a good source
| Check | What to look for |
|---|---|
| Peer review | The database marks it peer reviewed, or the journal's website describes its peer review process |
| Authors | Credentials and university or research affiliations listed with the article |
| Date | Recent enough for your field; health, technology, and business change quickly |
| Relevance | Answers part of your research question, not just the same general topic |
| Method | A clear design, a reasonable sample size, and limitations the authors admit |
| Journal quality | A recognized publisher or university press; be cautious of journals that promise publication in days for a fee |
Read a journal article without getting lost
Most research articles follow the same pattern: Abstract, Introduction, Literature Review, Methods, Results, Discussion, and References. You do not have to read them in that order.
- Abstract: decide in one minute whether the article fits your question.
- Discussion or conclusion: see what the authors found and what it means.
- Introduction: learn the problem, the background, and the research question.
- Methods and results: read for who was studied, how, and the key numbers. Tables often summarize the main results.
- References: mine the list for more sources on your topic.
Take notes in your own words as you go: the main finding, the sample and method, one limitation, and how it connects to your thesis. Record the full citation and DOI right away.
Use the article in your paper
Choose how to bring it in
| Technique | When to use it | Remember |
|---|---|---|
| Paraphrase | Most of the time; explain an idea or finding in your own words and sentence structure | Still needs a citation |
| Summary | Give the main point of a whole study in one or two sentences | Keep it short and focused on what matters to your argument |
| Direct quotation | Only when the exact wording matters, such as a definition | Use sparingly, with quotation marks and a page number |
Introduce, cite, and explain
Every source in your paper needs three moves: introduce it with a signal phrase, give the evidence with a citation, and explain how it supports your point.
Recent research suggests that late-night phone use cuts into students' sleep. In a survey of 1,200 undergraduates, Rivera and Chen (2023) found that students who used social media after midnight slept about 40 minutes less on weeknights. This matters for academic performance because shorter sleep is linked to lower concentration in morning classes.
Synthesize several articles together
Strong papers compare sources instead of describing them one at a time:
Several studies link late-night social media use to shorter sleep (Lee, 2022; Rivera & Chen, 2023), although most rely on self-reported surveys, which may overestimate screen time.
Cite it correctly
| Style | In-text | Reference entry |
|---|---|---|
| APA 7 | (Rivera & Chen, 2023) | Rivera, M., & Chen, L. (2023). Social media use and sleep in college students. Journal of College Health, 41(2), 115–128. https://doi.org/10.xxxx/xxxxx |
| MLA 9 | (Rivera and Chen 118) | Rivera, Maria, and Li Chen. "Social Media Use and Sleep in College Students." Journal of College Health, vol. 41, no. 2, 2023, pp. 115–28. DOI or database name. |
See our APA format guide and MLA format guide for more examples, or print the free APA and MLA quick-start sheets.
Common mistakes to avoid
- Citing an article after reading only the abstract.
- Using a journal article that is on your topic but does not support your specific claim.
- Stringing quotations together instead of explaining the evidence in your own words.
- Calling a single study "proof"; say what it suggests and note its limits.
- Citing the article a source quoted, when you never read that original article yourself.
- Leaving out the DOI or mixing citation styles.
Library databases, librarians, and interlibrary loan are free for enrolled students. Check your college library's research guides for the best databases in your major.
Frequently asked questions
How many journal articles do I need?
Follow the assignment. As a rough guide, a short undergraduate paper may use 3 to 5 scholarly sources, a longer research paper 8 to 15, and a graduate paper more.
Is Google Scholar peer reviewed?
No. Google Scholar lists many kinds of scholarly material, some peer reviewed and some not. Check each article's journal, or use a library database with a peer-review filter.
What if I can't access the full article?
Look for a "Find it @ Library" link, try a different database, or request it through your library's interlibrary loan. Don't cite an article you have only seen the abstract of.
Can I use an article older than five years?
Yes, when it is a landmark study or the best evidence available. Many instructors prefer mostly recent sources, so balance older classics with current research.