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A study that examines the rates of disease in relation to a population-level factor and that...

A study that examines the rates of disease in relation to a population-level factor and that has a population as the unit of analysis rather than an individual is a(n)

a) Experimental study

b) Cohort study

c) Case-control study

d) Cross-sectional study

e) Ecological study

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Answer #1

Answer: Cohort study.

( The cohort study is performed between the two population as it examines the rate of diseases in population to a population level factor as well as population as the unit of analysis rather than individual)

The experimental study includes the study of the individual having the disease. In the case control, the study directly related to the control group of individual having the disease.

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