Michael performed an experiment on police officers to determine the relationship between exercise and stress.One police department's officers performed 30 minutes of exercise at the beginning of their shift,while another department's officers did not.The department who did not take part in an exercise program is known as the
A)independent variable.
B)experimental group.
C)pretest.
D)control group.
E)posttest

Question

Quizplus · Accepted Answer

The group that did not take part in the exercise program is the control group. They did not receive any treatment and served as a comparison group to determine if the exercise program had an effect on reducing stress levels.

Michael Performed an Experiment on Police Officers to Determine the Relationship