<P> A fundamental premise of REBT is humans do not get emotionally disturbed by unfortunate circumstances, but by how they construct their views of these circumstances through their language, evaluative beliefs, meanings and philosophies about the world, themselves and others . This concept has been attributed as far back as the Roman philosopher Epictetus, who is often cited as utilizing similar ideas in antiquity . In REBT, clients usually learn and begin to apply this premise by learning the A-B-C - D-E-F model of psychological disturbance and change . The A-B-C model states that it is not an A, adversity (or activating event) that cause disturbed and dysfunctional emotional and behavioral Cs, consequences, but also what people B, irrationally believe about the A, adversity . A, adversity can be an external situation, or a thought, a feeling or other kind of internal event, and it can refer to an event in the past, present, or future . </P> <P> Where the following letters represent the following meanings in this model </P> <P> A - The adversity </P> <P> B - The developed belief in the person of the A Adversity </P>

Who developed the technique for treating emotional problems