Multiple Choice
A double- blind placebo- controlled study is
A) research that involves looking at factors in two or more groups of subjects to see if there is a relationship to certain outcomes.
B) research in which neither the subjects nor the scientists know which group received the treatment and which group received a placebo.
C) an idea generated by scientists based on their observations.
D) a stepwise process used by scientists to identify effective placebos.
Correct Answer:
Verified
Correct Answer:
Verified
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