Does your instructor require you to use "peer-reviewed articles"? These are also sometimes called "scholarly" or "academic" articles. Watch the video below from Wayne State University Libraries to find out what to look for.
Your instructor may ask your to use only scholarly resources for your paper. What's the difference between a scholarly or non-scholarly resource?
Scholarly (peer-reviewed) sources include books and articles published in scholarly journals, encyclopedias, and books. These sources are reviewed by a panel of experts in that particular field, and are often published by a professional association or a university press. These experts ensure the information published is credible before accepting it for publication.
Non-Scholarly sources include websites, magazines, newspapers, and books that undergo no expert review prior to publishing.
Check with your instructor if you plan to use any non-scholarly websites and use the CRAAP test to evaluate them.