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LAB - Information Retrieval Toolkit

Evaluating information sources

This acronym will help you evaluate the credibility and reliability of a source you are thinking of you using.  

  • Currency - is the source up-to-date? 
  • Relevance - is the source relevant to your research?
  • Authority - who is the author? Are they considered reputable and trustworthy in their field? Where is the source published? 
  • Accuracy - is the source supported by evidence? Are the claims backed up by references?  
  • Purpose - what was the motive behind publishing this source? 

The CRAAP test was developed by librarians at CSU Chico. Link to the original test and a set of questions that will help with the evaluation. 


You can think of peer review as a "stamp of approval" from academic experts. When an article is published in a peer-reviewed journal, you'll know that experts in the relevant field have read the article and, independent of their own particular opinions, verified it to meet a high standard of scholarship. Peer reviewed journals are occasionally also called scholarly or refereed journals depending on the publisher.

Almost all library databases including Primo have a box or a tab that allows you to limit your search results to peer reviewed articles.