Karl Popper and Albert Ellis: Their ideas on psychology and rationality compared

This paper considers leading ideas of Albert Ellis on psychological theory and therapy in relation to ideas of the celebrated philosopher, Karl Popper. The aim is to indicate striking similarities in their views on learning, the genesis of emotional disturbance and, in particular, rationality. Discussion commences with Popper's early, and little studied, work on psychology. His philosophy of science is then surveyed along with the theory of rationality that he analogically extends from it. After tracing the evolution of Ellis' thought, we note the central roles he assigns to irrational thinking in explaining emotional disturbance and to rational thinking in its treatment. Different senses of rationality are distinguished in his work, one of them associated with criticism, which provides a most important similarity to Popper's view of rationality.For helpful comments on draft versions of this paper the author is indebted to Barry Butcher.Drs. Jocelyn Dunphy and Albert Ellis, and an anonymous reviewer for this journal.Studies of Popper on psychology have only begun to appear in recent years. The most detailed is (Berkson & Wettersten, 1984).