Giving placebos in drug experiments is necessary to
A) counteract the random assignment of subjects.
B) counteract the side effects of the drug.
C) control for the effects of suggestion and expectation.
D) control for drug abuse.

Question

Quizplus · Accepted Answer

Placebos are used to control for the effects of suggestion and expectation, ensuring that any observed effects of the drug are due to the drug itself and not to the subjects' beliefs or expectations about being treated.

Giving Placebos in Drug Experiments Is Necessary to