Final answer:
Behavior therapy is a form of psychotherapy that requires the active participation of the client, and the therapist and client must work together for common goals.
Step-by-step explanation:
Behavior therapy is a form of psychotherapy that focuses on changing maladaptive behaviors through techniques such as reinforcement, punishment, and modeling. It is not true that the client is merely passive while the therapist uses techniques. In behavior therapy, the client must be an active participant and actively engage in the therapeutic process. Both the therapist and the client need to work together for common goals and if the client is not involved or motivated, the chances of therapy being successful are slim.