You are doing a study to determine whether vaping nicotine before taking a psychology test affects performance on that test. What is the independent variable in your study?

Question

Quizplus · Accepted Answer

The independent variable is the variable that is manipulated or changed by the researcher in order to observe its effects on the dependent variable. In this study, the independent variable is whether or not the participants vape nicotine before taking the psychology test. The psychology test itself is not being manipulated, and neither are the participants (as they are not being randomly assigned to vape or not vape). Therefore, the correct answer is C, vaping nicotine.

You Are Doing a Study to Determine Whether Vaping Nicotine