Be sure your sources are valid. Obviously,
an article you might see in The National Enquirer will differ
vastly from an article in the Journal of the American Medical Association.
Be aware of important, though more subtle, differences between other
publications. Determine the journal's reputation, find out about the
author's qualifications, look for bias in the evidence or gaps in the
information presented. The same applies to World-Wide Web sites
on the Internet. For comprehensive help, use Cornell's "How
to Evaluate the Sources You Find."
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