Multiple Choice
Volunteers in a study are assigned randomly to groups.Some of the volunteers receive an herbal supplement that is reputed to control nausea,and some of the volunteers are assigned to a control group where a placebo is administered.This is an example of a(n) :
A) Longitudinal study.
B) RCT.
C) Meta-analysis.
D) Appraisal tool.
Correct Answer:
Verified
Correct Answer:
Verified
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