Mark is a participant in a human intervention study that is testing the impact of selenium supplements on the performance of endurance athletes Though Mark does not know if he is receiving selenium or an inactive sugar pill, he is sure that it is the tablet that he is taking that has helped him shave several minutes off his usual marathon time What effect is Mark experiencing?
A)Thornburg
B)Placebo
C)Predisposition
D)Hawthorne

Question

Quizplus · Accepted Answer

Mark is experiencing the placebo effect, where he believes the tablet he is taking is improving his performance, even though he may be receiving an inactive sugar pill.

Mark Is a Participant in a Human Intervention Study That