Which type of research study compares disease rates among population groups, and attempts to identify related conditions or behaviors?
A. placebo
B. clinical trial
C. case control
D. epidemiological
Epidemiological research studies compare disease rates among population groups, and attempt to identify related conditions or behaviors.
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Asked 9/26/2012 10:53:35 AM
Updated 6/28/2014 4:46:13 PM
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Janet17 [6/28/2014 4:46:09 PM], Confirmed by
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