Question: Three of the most important study designs in modern epidemiology are ecologic studies, cross-sectional studies, and case-control studies. Briefly explain each of these study designs. Also, for each design, present at least one example of a research scenario in which the design would be appropriate.
Please explain whether you agree with my classmate response to the above question and why? (a mininum of 150 words)
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Attachment:- Post 1.rar