In a study of the effects of 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.

Question

Quizplus · Accepted Answer

The control group should receive a placebo, which is an inactive substance that looks identical to the antidepressant drug, so that any effects observed in the experimental group can be attributed to the drug and not to other factors such as placebo effect or natural recovery.

In a Study of the Effects of Antidepressant Drug on Depressive