The placebo effect best illustrates the impact of ________ on feelings and behaviors.
A) the double-blind procedure
B) random sampling
C) positive expectations
D) regression toward the mean

Question

Quizplus · Accepted Answer

The placebo effect refers to improvements in symptoms or behavior that are related to a person's positive expectations or beliefs about a treatment, rather than any active ingredient in the treatment itself. This illustrates the impact of positive expectations on feelings and behaviors. The double-blind procedure and random sampling are research methods, while regression toward the mean refers to the statistical phenomenon that extreme scores on a measure tend to move toward the average score over time.

The Placebo Effect Best Illustrates the Impact of ________ on Feelings