A peer-reviewed journal is a respected academic publication. Before articles are published within these types of journals, they are sent by the editors of the journal to other scholars in the field ("peers"), often anonymously, to get feedback on the quality of the scholarship, review research methods, as well as relevance or importance to the field. The article may be accepted, often with revisions suggested, or rejected for publication.
One way to find peer reviewed articles is to type your keywords into WPI Library Search, and then choose the filters for Peer-reviewed Journals. You can also search our LibGuides Databases (organized by subject) for peer-reviewed articles.