You can determine if a journal is peer-reviewed by looking for several indications. Peer-reviewed journals are published by professional associations or academic institutions and will often include the description "scholarly" or "peer-reviewed" in the publication information. The articles usually include items such as abstracts, footnotes or citations of sources, and bibliographies or reference lists.
One of the simplest ways to identify peer-reviewed journals is to conduct a search in the online library databases, such as Academic Search Complete, which allow limiting results to only peer reviewed journals.
Review the characteristics and purpose of scholarly journals from the Information Sources guide.