In contrast to observational studies, intervention studies are employed to:
A) generate knowledge about the etiology and natural history of disease.
B) formulate strategies for prevention.
C) test the efficacy of prevention measures.
D) All are correct.
Correct Answer:
Verified
Q7: The purpose of the washout period is
Q8: An example of a famous heart disease
Q9: In community intervention studies, it is important
Q10: External validity is not connected with the
Q11: Controlled clinical trials enable researchers to:
A) test
Q13: To assess clinical end points, investigators:
A) compare
Q14: The Stanford Five-City Project, a major community
Q15: A prophylactic trial is designed to:
A) compare
Q16: Surrogate endpoints for a clinical trial of
Q17: The purpose of a double-blind design in
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