In a study of the effects of an antidepressant drug on depressive symptoms, the experimental group is given the antidepressant drug, while the control group is given a
a. placebo.
b. different but equally powerful anti-depressant drug.
c. lesser amount of the antidepressant drug.
d. mixture of a placebo and the antidepressant drug.
ANSWER: a
Psychology
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