Featured question: How can I tell if an article is peer-reviewed?
Peer-reviewed or refereed articles are those that have been critiqued by experts in the field before publication. Our guide "Is this article peer-reviewed?" provides details on three strategies you can use to find out: (1) check the journal's web site, (2) use Ulrich's Periodicals Directory, or (3) use limit options within a database.
Note that typically only the research articles in a journal are peer-reviewed. News, letters, opinions, commentary, and book reviews are usually not peer-reviewed even when they appear in peer-reviewed journals.