All peer-reviewed journals are scholarly, but not all scholarly articles are peer-reviewed.
Peer-reviewed = reviewed by professionals in the field, independent of the journal.
Scholarly = has an editorial staff knowledgeable in the field.
Double check
Still not sure if your source is peer-reviewed or not? Try Ulrich's Periodical Directory -- it lists each periodical as Consumer, Trade, or Academic/Scholarly.
Directory of periodicals with information on peer-reviewed status, database availability, publisher, country, ISSN, start year, and active/inactive status.
Sometimes professors will ask you to use "scholarly articles" rather than popular magazines or newspapers. How can you tell the difference? See the table below:
Characteristics
Scholarly Articles
Popular Magazine
Appearance
Sober and serious May contain graphs or charts Will not find glossy pages or photographs
Attractive appearance Advertisements Heavily illustrated Glossy paper
Audience
Scholars and students
General audience
Authors
Scholars in the field of study
Reporters, usually not experts on the subject
Documentation
Sources cited in footnotes and/or bibliography
Sources not cited or cited informally
Purpose
Report results of original research or experimentation
Provide general information
Article Acceptance
Procedure
Many (but not all*) scholarly journals are "refereed" or "peer review" journals - articles undergo a rigorous examination by other scholars in the field before being published.
Written by hired reporters, edited by magazine editors, and published.
Example journals
Medicine & Science in Sports & Exercise Journal of Sports Medicine Internal Journal of Sport Psychology
Sports Illustrated Coach and Athletic Director Bicycling