MATH 141 (MPH202)
Pennsylvania State University
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MPH 202 - final exam_sample_answer Key : Pennsylvania State University
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MPH 202
Final Exam	
4 points per question

Section 1 (60 points)
True/False (circle one answer) 
 
1.	In a cohort study, we start with exposure status and measure disease risk. T / F

2.	A confounder must be an intermediary variable on the causal pathway between exposure and disease. T / F

3.	Participants in a cohort study should be selected based on their disease status. T / F

4.	We should not use a randomized trial to study a harmful exposure. T / F

5.	Confounding is not the fault of the i...
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