You're looking for two combined pieces:

an article that meets the criteria of a scholarly article 

AND

a journal that contains peer-reviewed articles.*

1. If you're searching in most of our databases, limit your results to peer-reviewed or academic journals. 
    
2. Once you've found a potential article, click on the title so that you can see more information about it (this is call the detailed record page).
   • You'll usually be able to read the abstract on this page.
   • Sometimes at the bottom of the page a journal subset field will indicate peer review, double blind peer review, or any other variation of peer review.  
      
3. If it's still not clear, Google to find out more about the journal. Look for aim & scope, about, journal information, editorial board, etc.  

* Or any other criteria as assigned by your professor or that meet your information need.

NOT Peer Reviewed:

• Editorials
• Opinion pieces
• Letters to the Editor
• Book Reviews

These may be great sources and very useful to you (remember to cite them if you use them!), but they're not peer- reviewed.