What is a peer-reviewed journal, also known as a refereed journal?
A scholarly periodical which requires that each article submitted for publication be judged by an independent panel of experts (scholarly or scientific peers). Articles not approved by a majority of these peers are not accepted for publication by the journal.
Peer-reviewed journals can be identified by the editorial statements or instructions to authors (usually in the first few pages or the journal or at the end), and also by consulting Ulrich's International Periodicals Directory.
Other common characteristics of scholarly, peer-reviewed, or refereed journals: