A drug company believes that it has discovered a pill that may improve a person's reaction speed.To test the drug,10 men are given no drug,10 men are given one pill,and 10 men are given two pills.One week later,each subject is presented with a task in which they hit a button after hearing a tone.The speed of their reaction is recorded to the hundredth of a second.What is the dependent variable in this experiment?
A) pill dosage
B) sex of the subjects in the study
C) time it takes a subject to push the button
D) one-week delay

Question

Quizplus · Accepted Answer

The dependent variable is the variable that is being measured or observed in the study. In this case, the time it takes a subject to push the button after hearing a tone is being recorded. Therefore, the dependent variable in this experiment is the time it takes a subject to push the button, which is option C.

A Drug Company Believes That It Has Discovered a Pill