Researchers at the Allied Mental Health Center are conducting a study to determine how quickly symptoms of depression are reduced by different forms of psychotherapy. What is the independent variable in this study?
A) change in the symptoms of depression
B) method used to recruit participants for the study
C) form of psychotherapy used to treat depression
D) cost of the study

Question

Quizplus · Accepted Answer

The independent variable is the variable that is manipulated or changed in the study. In this case, it is the form of psychotherapy used to treat depression. The researchers are comparing different forms of psychotherapy to determine how quickly symptoms of depression are reduced. Therefore, the form of psychotherapy used is the independent variable.

Researchers at the Allied Mental Health Center Are Conducting a Study