This is the "Credibility & Bias" page of the "Evaluating Sources" guide.
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Last Updated: Jul 14, 2014 URL: Print Guide RSS Updates

Credibility & Bias Print Page

C.R.A.A.P. Test

The CRAAP Test guidelines can help you evaluate all kinds of information.  Just remember:







Political & Social Bias

If your assignment requires an overview of a topic from different political or social perspectives, then it will be necessary to identify and recognize the bias represented in specific magazines, newspapers, and websites/blogs. 

Here are two lists to help you:

Tracing Websites

  • DomainTools
    Find out who owns a website domain (current and historical); or conduct a Reverse Whois Lookup to find all the domains ever owned by any specific company or individual. Can be helpful to identify where or who a website comes from.
  • Alexa
    Find website analytics---how popular it is, who views it, who links to it.

Which Website is Legitimate?

Three of the following websites are hoaxes. Which do you think is legitimate?



Many thanks to Karen Dearing for creating this guide.

Evaluating Sources -- Don't Be Tempted!

Image provided by the University of California Museum of Paleontology's Understanding Science

"Evaluating sources is an important skill. It's been called an art as well as work—much of which is detective work. You have to decide where to look, what clues to search for, and what to accept. You may be overwhelmed with too much information or too little. The temptation is to accept whatever you find. But don't be tempted. Learning how to evaluate effectively is a skill you need both for your course papers and for your life." -- (Driscoll and Brizee, 2013, OWL Purdue)


Evaluating News vs. Opinion -- Critical Thinking Tips

Image provided by the University of California Museum of Paleontology's Understanding Science





based on multiple viewpoints

based on a singular viewpoint

believes facts have greatest impact

believes opinion has greatest impact

objective and impersonal

subjective and personal


special reports, investigative reports, polls


editorials, interviews, speeches, comments

(Guidelines are from the NewsTrust webpage Think Like a Journalist created by Michael Bugeja.)

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