An experimenter was interested in comparing two kinds of marital therapy programs--one that involved individual counseling and one that provided therapy for couples together. The experimenter also thought that therapy effectiveness might depend on the age of the couples, the number of years they had been married, and whether or not they had any children. Which of the variables in the study is not a subject variable?

Question

Quizplus · Accepted Answer

The type of therapy is not a subject variable because it is the independent variable that is manipulated by the experimenter. The age of the couples, the number of years they had been married, and whether or not they had children are all subject variables because they are characteristics of the participants that cannot be controlled by the experimenter.

An Experimenter Was Interested in Comparing Two Kinds of Marital