Verify if a journal is academic/peer-reviewed using Ulrich's Periodicals Directory. Type the name of the journal in the search box. On the result screen, look for the peer-review or referred icon next to the journal title.
Make sure that you select a database that includes scholarly/peer-reviewed/referred journals. For example, JSTOR, ABI-INFORM, and Academic Search Premier all include scholarly journals.
Use CRAAPcriteriato determine if the article is scholarly research. Watchthis video about evaluating sources using CRAAP (Currency, Relevancy, Authority, Accuracy, Purpose)