The CRAAP test lists criteria that can help you evaluate the quality and appropriateness of the information sources you encounter.
When was the information published or posted?
Do you need historical or current information?
Has this information been revised or changed since it was first released?
BOTTOM LINE: Does this offer appropriately current or historical information?
Image: Bummer by Nick Harris1. Used under CC BY-ND
Does the information help you accomplish the purpose of your work/paper? Does this easily relate to your topic?
Does this source meet all your information needs or assignment requirements?
Is this source at an appropriate level for your intended audience?
Have you looked at a variety of sources? Why is this source better than others?
BOTTOM LINE: Is this a source that adds value to your work? Why is it worth including?
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Who is the author? Who is the publisher?
BOTTOM LINE: Can you trust this author and publisher to know what they're talking about?
Image: [Man with Cameras] by i k o. Used under CC BY-NC-SA 2.0
Is this information correct? Reliable?
Are sources listed? Cited within the text?
If the source conducted its own original research:
BOTTOM LINE: Can you trust that this information is true?
Image: Darts by Richard_of_England. Used under CC BY 2.0
What is the purpose of this information source?
Is the information fact, opinion, or propoganda?
Do the authors/publishers make their intentions clear?
Is there bias - political, cultural, religious, ideological, personal, etc?
BOTTOM LINE: Is this source objective and impartial, or is it influenced by bias or hidden agendas?
Image: "Is your trip necessary?" by Richard Masoner / Cyclelicious.Used under CC BY-SA 2.0.