Peer-review is an evaluation process in which qualified individuals within specialized field of study reviews literature before it becomes published. This process helps keep standards held by the profession, improves the quality of work being published, and provides credibility & reliability to published work & authors publishing the work. The 5-minute video below describes and discusses the importance of peer-review and its process.
(NCSU video, 5 min.)
Many databases offer a quick way limit your results to peer review literature. Databases, such as Academic Search Premier, have a box to check for scholarly, peer-reviewed articles. Below is a screenshot of a database that has a check-box to limit results only to scholarly, peer-reviewed articles.
These databases can limit results to scholarly articles: