Phil is a participant in a study designed to examine the effects of taking a new protein-containing product on muscle tissue development.Phil suspects he's in the experimental group,because he's certain his muscles are bigger and stronger as a result of taking the product supplied by the researchers.When the study is completed,Phil learns that he didn't receive the new source of protein.Phil thinks the researchers made a mistake-he's certain his muscle mass increased while he consumed the product.According to this information,Phil's belief that his physical condition improved while he participated in the study is an example of

Question

Quizplus · Accepted Answer

Phil's belief that the new protein-containing product increased his muscle mass is an example of the placebo effect, which occurs when a person experiences a perceived improvement in their condition even if they receive a placebo or a treatment that has no active ingredient or effect. Phil's expectation and belief that he was receiving the new product could have influenced his perception of his physical improvements.

Phil Is a Participant in a Study Designed to Examine