A Researcher Found That Clients Who Were Randomly Assigned to Same-Sex

Multiple Choice

A researcher found that clients who were randomly assigned to same-sex groups participated more in group therapy sessions than clients who were randomly assigned to coed groups. In this experiment, the independent variable was

A) the amount of participation in the group therapy sessions.
B) whether or not the group was coed.
C) the clients' attitudes toward group therapy.
D) how much the clients' mental health improved.