John recently took what he thought was a pain reliever and reports less shoulder pain.However, the pill he took was only a sugar pill.This best illustrates the _____ effect.
A)Barnum
B)extraneous factor
C)placebo
D)psychosomatic

Question

Quizplus · Accepted Answer

The described scenario is an example of the placebo effect, in which a person experiences a reduction in symptoms or pain after receiving a treatment that is inactive, such as a sugar pill. The placebo effect is believed to be related to the person's expectations and beliefs about the treatment, rather than any pharmacological or physiological response to the treatment itself.

John Recently Took What He Thought Was a Pain Reliever