It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.
Update: Moffitt Library is closed for seismic work, but most other libraries are open. Learn more.
What is evidence?
All research is (potentially) "evidence" and there are no "perfect" studies.
Critically evaluating what you read will help any unearth biases or methodological shortcomings that may be present.
Things to consider when evaluating research for bias:
The question being addressed: What kind of research gets funded?