CBT is based on the combination of the basic principles from behavioral and cognitive psychology.It is different from historical approaches to psychotherapy, such as the psychoanalytic approach where the therapist looks for the unconscious meaning behind the behaviors and then formulates a diagnosis. Instead, CBT is a "problem-focused" and "action-oriented" form of therapy, meaning it is used to treat specific problems related to a diagnosed mental disorder. The therapist's role is to assist the client in finding and practicing effective strategies to address the identified goals and decrease symptoms of the disorder.CBT is based on the belief that thought distortions and maladaptive behaviors play a role in the development and maintenance of psychological disorders,and that symptoms and associated distress can be reduced by teaching new information-processing skills and coping mechanisms