The grade point average (GPA) of students participating in an experiment on academic achievement rose over the course of the academic year. The students worked harder to do better in school because they knew they were being studied. This is an example of:
A) selection effects
B) the Hawthorne effect
C) central tendency
D) spuriousness

Question

Quizplus · Accepted Answer

The increase in GPA is due to the Hawthorne effect, which occurs when people modify their behavior because they know they are being studied.

The Grade Point Average (GPA) of Students Participating in an Experiment