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Biology: Evaluate Web Sites

Use this guide as your first stop to finding and using the Biology resources and services of the UC San Diego Library.

Some tips for evaluating online information

As more information becomes available on the web, it has become very important that individuals take responsibility to critically evaluate the information they find for reliability and accuracy. The following are some key questions you could ask yourself when deciding whether to believe information found on the web.

Evaluate web sites uisng the CRAAP test.

Currency: the timeliness of the information

  • When was the information published or posted?
  • Has the information been revised or updated?
  • Is the information current or out-of date for your topic?
  • Are the links functional?

Relevance: the importance of the information for your needs

  • Does the information relate to your topic or answer your question?
  • Who is the intended audience?
  • 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?
  • Would you be comfortable using this source for a research paper?

Authority: the source of the information

    • Who is the author/publisher/source/sponsor?
    • Are the author's credentials or organizational affiliations given?
    • What are the author's credentials or organizational affiliations given?
    • What are the author's qualifications to write on the topic?
    • Is there contact information, such as a publisher or e-mail address?
    • Does the URL reveal anything about the author or source?

           examples: .com (commercial), .edu (educational), .gov (U.S. government),

                   .org (nonprofit organization), or .net (network)

Accuracy: the reliability, truthfulness, and correctness of the content, and

  • Where does the information come from?
  • Is the information supported by evidence?
  • Has the information been reviewed or refereed?
  • Can you verify any of the information in another source or from personal knowledge?
  • Does the language or tone seem biased and free of emotion?
  • Are there spelling, grammar, or other typographical errors?

Purpose: the reason the information exists

  • What is the purpose of the information? to inform? teach? sell? entertain? persuade?
  • Do the authors/sponsors make their intentions or purpose clear?
  • Is the information fact? opinion? propaganda?
  • Does the point of view appear objective and impartial?
  • Are there political, ideological, cultural, religious, institutional, or personal biases?

Note: The CRAAP Test was developed by CSU Chico.

Questions? Contact me

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Jenny Reiswig
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