Dr. McGlynn is conducting a study on reaction time. He allows subjects to exercise strenuously for either 0, 10, or 20 minutes. Next, subjects are seated at a table containing a red push button and a yellow light. Each subject is asked to push the button as soon as he or she sees the light flash. Dr. McGlynn measures the time it takes each subject to push the button after the light is lit. What is the dependent variable in this study?
A) the amount of time spent exercising
B) colour of the button
C) pushing the button
D) reaction time
E) colour of the light

Question

Quizplus · Accepted Answer

The dependent variable in this study is the reaction time, as it is the outcome being measured and is dependent on the level of exercise (the independent variable).

Dr McGlynn Is Conducting a Study on Reaction Time