A psychologist is studying the effects of fatigue on competition. She has subjects skip one, two, or three nights of sleep and then play a competitive game, noting the number of points scored by subjects in the three different conditions. In this example, the dependent variable is
A) fatigue.
B) the number of points scored.
C) number of nights sleep was missed.
D) number of games played.

Question

Quizplus · Accepted Answer

The dependent variable is the variable being measured or tested in the experiment. In this case, the psychologist is measuring the number of points scored by the subjects in the different conditions of fatigue. Therefore, the number of points scored is the dependent variable.

A Psychologist Is Studying the Effects of Fatigue on Competition