Research on placebos has shown which of the following?
A) They do not work.
B) They only work for psychological problems like anxiety and depression.
C) Even fake surgery can have positive effects.
D) They have only trivial effects.

Question

Quizplus · Accepted Answer

Research on placebos has shown that even fake surgery can have positive effects. Studies have found that patients who received a placebo surgery for conditions such as osteoarthritis of the knee or angina reported similar levels of improvement as patients who received the actual surgery. This suggests that the placebo effect can be powerful enough to produce real physiological changes in the body.

Research on Placebos Has Shown Which of the Following