Dr. Wilhelm randomly assigned 50 depressed patients (half women and half men)to two groups for treatment. One group received medication, and the other received cognitive therapy. Ratings of the depression level of the participants were taken before and after treatment. The gender of the participants in the study is the
A)dependent variable.
B)independent variable.
C)classificatory variable.
D)third variable.

Question

Quizplus · Accepted Answer

The gender of the participants is a classificatory variable, as it is used to categorize the participants into two groups for treatment. The independent variable is the treatment type (medication vs. cognitive therapy), and the dependent variable is the depression level of the participants, which is being measured before and after treatment. A third variable, such as age or severity of depression, may also be present in this study.

Dr Wilhelm Randomly Assigned 50 Depressed Patients (Half Women and Half