Two forms of therapy closely associated with Raymond Cattell's structure-based systems theory are cognitive therapy and behavioral therapy. In cognitive therapy, therapist and patient work together to uncover and correct the patient's distorted, harmful, or "magical" thinking. Cattell's model suggests that the expression of specific personality traits can more or less appropriate depending on the environment and situation. A cognitive therapeutic model helps individuals come into greater awareness of their personality-based coping mechanisms, and provides them the opportunity to assess their effectiveness.
Behavioral therapy provides a space for experimenting with new and uncomfortable behaviors. It is an experiential model in which the patient gets most of his feedback from his own behaviors, rather than from the therapist. This model is closely associated with Cattell's theory because both emphasize the fact that personality and behavioral patterns occur within the larger structures of everyday life. Thus, both models encourage individuals to see themselves not as isolated, rational entities operating by free will alone, but rather as contingent beings who are constantly responding and reacting to external stimulus.