Juan has been smoking for years and really wants to quit.He decided to buy a specially formulated vitamin that he saw advertised on TV.Since he has taken the vitamin,his urge to smoke has disappeared.Juan is most likely to have experienced a(n):
A) placebo effect
B) double-blind effect
C) experimenter effect
D) dependent effect

Question

Quizplus · Accepted Answer

Juan's experience suggests that the effect of the vitamin may not be due to its formulation but rather to his belief in its effectiveness. The placebo effect refers to the tendency for a person to experience a change in symptoms or behavior due to their belief in a treatment, even if the treatment itself has no therapeutic effect.

Juan Has Been Smoking for Years and Really Wants to Quit.He