Which of the following statements most accurately describes a cohort study?
A) Persons are randomly assigned to groups and then followed to determine if they develop certain outcomes.
B) Groups of persons with different levels of risk are identified and then followed to determine if they develop certain outcomes.
C) Persons with rarely occurring conditions are matched with persons who don't have the conditions and their prior exposure to risk is examined.
D) Persons are randomly assigned to groups and then data is collected ex post facto to study certain variables.
Correct Answer:
Verified
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A) They
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Q9: What information does relative risk (RR) provide?
A)
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