Alfred Adler was not the only contributor to Cognitive theory. Between the late 1950’s and early 1960’s Albert Ellis came up with dysfunctional thinking or emotions that come from irrational beliefs. He sought out to change these unclear emotions with psychotherapy and by challenging these beliefs. His books are very well known and used a lot of by different therapist. He is basically considered the grandfather of Cognitive Behavior Therapy and his ABC model is used widely. Albert came up with Rational-emotive therapy, which was later on changed to Rational-emotive behavior therapy because Ellis wanted his clients to act upon their new beliefs by putting them into practice (Wilde, 1996, p. 9). Others who have contributed to Cognitive theory have been William Glasser, Arnold Lazarus, Don Tosi, Victor Ramy, Maxie Maultsby, Aron Beck and many more.
William Glasser used effective psychotherapy to help his clients find courage to change their life style and become more responsible of their goals. He did this by pointing out the worth of self and the basic human need to be loved. His ‘reality therapy’ consisted of his clients focusing on personal responsibility to understand their own reality (Lantz, 1996). Arnold Lazarus came up with the seven modes of the client that help assess their functioning. These seven modes are