The CRAAP test is a list of questions that you can ask when evaluating information. Familiarize yourself with it before starting and review it as needed as you conduct your research.
In addition to the CRAAP test, when you're not able to find all the information you need in a particular source, there's more you can do to evaluate it for credibility. Read more about what you can do under "Going a Step Beyond Crap".
Original CRAAP Test created by Chico State Librarians. Plus questions inspired by the work of Angela Pashia.
The CRAAP Test is a great way to do some basic evaluation of a source. But often when you're evaluating a webpage, CRAAP is not enough because you can't find all the information you need on the page itself - you need to leave the page and do some additional research about the organization, the author, or the claims being made.
Mike Caulfield's free ebook Web Literacy for Student Fact-Checkers suggest four ways to fact-check sources that go beyond the CRAAP test: