The placebo effect is most often based on:
A) whether or not the placebo is prescribed by a doctor
B) patient expectations about the placebo's effectiveness
C) the dosage of the placebo
D) the initial, biochemical effect of the placebo

Question

Quizplus · Accepted Answer

The placebo effect is based on patient expectations about its effectiveness. Placebos do not have any active ingredients, but the belief that they will have a therapeutic effect can result in improvement of symptoms. Research shows that the strength of the placebo effect is closely related to patients’ beliefs and expectations of the treatment.

The Placebo Effect Is Most Often Based On