If you're unsure whether an article is peer-reviewed, search for the journal title in Ulrich's Periodicals Directory. A referee jersey icon will appear next to the journal title if it is peer-reviewed. Journals that are peer-reviewed will contain peer-reviewed articles. Exceptions include letters to the editor, opinion pieces, commentaries, etc.
![](//libapps.s3.amazonaws.com/accounts/139872/images/ulrichs_new.png)