Final answer:
The statement that is not true is option d: Contemporary behavior therapy is increasingly concerned with therapists' behavioral control.
Step-by-step explanation:
The statement that is not true is option d Contemporary behavior therapy is increasingly concerned with therapists' behavioral control.Behavior therapy is focused on changing the maladaptive behaviors that contribute to psychological problems. It emphasizes the role of environmental factors in shaping behavior and does not prioritize therapists' control over clients' behavior.On the other hand, behavior therapy does consider cognitive factors in the practice, as mentioned in option a. Contemporary behavior therapy is grounded in a scientific view of human behavior, as stated in option b. Behavioral methods can also be applied to a diverse client population, as mentioned in option c.