Rational Emotive Behavior Therapy is based on the assumption that __________.

a
Feedback to correct answer: Cognitive theorist Aaron Beck ob-served that an individuals belief systems, expectancies, and assumptions exert a strong influence on his state of well-being, as well as his directly observed be-havior (Beck, 1970, p. 184). Similarly, Albert Ellis, who developed Rational Emo-tive Behavior Therapy (a form of cognitive-behavioral therapy CBT), worked under the assumption that cognition, emotion, and behavior are not disparate human functions but are, instead, intrinsically integrated and holistic (Ellis & MacLaren, 1998, p. 3).