When it comes to academic journals, peer-reviewed and refereed terms are interchangeable. A peer-reviewed (refereed) article is evaluated by other research specialists. This evaluation is performed to evaluate the publication requirements of an article and the guidelines for its publication. In many cases, teachers will require students to use articles from “peer-reviewed journals”.
Sometimes, the phrases “refereed journals” or “academic journals” are used to describe the same type of journals. If you've used the four methods above to try to determine if an article comes from a peer-reviewed journal and you're still not sure, talk to your instructor. But what are peer-reviewed (or refereed or academic) journal articles and why do professors do they demand their use?.