Mia is a participant in a human intervention study designed to test the effectiveness of losing weight by eating a diet that contains 25% of one’s required kcalories from fat. Because she is in this study, Mia has decided to increase the amount of exercise she gets and to reduce the amount of beer she drinks. Mia’s behavior is an example of _____.
A)the Sanders effect
B)subject bias
C)a confounding variable
D)the Hawthorne effect

Question

Quizplus · Accepted Answer

Mia's behavior is an example of the Hawthorne effect, which occurs when study participants modify their behavior simply because they are aware they are being observed in a study. This can impact the study results and make it difficult to determine the true effectiveness of the intervention being tested. The Sanders effect, subject bias, and confounding variables are all different concepts that do not apply to this scenario.

Mia Is a Participant in a Human Intervention Study Designed