Evaluate Sources

Evaluating the Currency, Relevance, Authority, Accuracy and Purpose (CRAAP Test) of the information you find is a crucial and necessary step in your library research.  The questions in this guide should help you determine whether a particular source is a good fit for your research.

Always be critical. Can you defend the CRAAP of the resource?

Currency
  • When was the information published or posted?
  • Has the information been revised or updated?
  • Does your topic require current information, or will older sources also work?
Relevance
  • Does the information relate to your topic or answer your question?
  • Is the information at an appropriate level (i.e. not too elementary or advanced for your needs)?
  • Have you looked at a variety of sources before determining this is one you will use?
Authority
  • Who is the author/ publisher/ sponsor, and what are their credentials or affiliations?
  • Is the author qualified to write on the topic?
  • Is there contact information, such as a publisher or email address?
Accuracy
  • Where does the information come from, and are claims supported by evidence?
  • Can you verify any of the information in another source or from personal knowledge?
  • Are there any broken links or typographical errors?
Purpose
  • What is the purpose of the information? Is it to inform, teach, sell, entertain or persuade?
  • Is the information fact, opinion or propaganda? Keep in mind that a blog is often solely the author’s opinion!
  • Is the point of view objective? Does the language or tone seem unbiased and free of emotion?

 Adapted from CSU Chico’s Meriam Library handout, 2010click to download.