Multiple Choice
Which of the following happens in a randomized clinical trial?
A) A target treatment is compared against an organically inert treatment.
B) It is difficult to determine the direction of causality unambiguously.
C) The same people are observed at multiple points in time.
D) Researchers attempt to reconstruct the conditions that led to a current situation.
Correct Answer:
Verified
Correct Answer:
Verified
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