An experimenter tests the hypothesis that physical exercise improves mood. Subjects in the experimental group participate on Monday and Tuesday and those in the control group on Wednesday and Thursday. Which of the following is the independent variable?

Question

Quizplus · Accepted Answer

The independent variable is the variable that is manipulated by the researcher to observe its effect on another variable. In this case, exercise is the independent variable because it is being manipulated to see its effect on mood, the dependent variable.

An Experimenter Tests the Hypothesis That Physical Exercise Improves Mood