The concept of self-deception is important for the psychotherapist and research-oriented psychologist alike. In psychoanalytic therapy, the most significant problems of life are thought to stem from the ego's attempts to repress and disguise the individual's true motives (Freud, 1917(Freud, /1961. The concept of self-deception may also be helpful for understanding cognitive-behavioral therapies. One frequently used method of therapy within this framework has clients rehearse adaptive thoughts and behaviors (Ellis & Grieger, 1977;Meichenbaum, 1977). At first, the thoughts and actions feel artificial and do not appear to be believable aspects of the self. However, with time and practice, the responses become part of the personality. In effect, the clients seem to deceive themselves into new personalities by role playing. Research-oriented psychologists also routinely use concepts that imply self-deception. In processes such as self-verification (Swann, 1987), symbolic self-completion (Wicklund & Gollwitzer, 1982), positive illusions (Taylor, 1989)' and self-evaluation maintenance (Tesser & Moore, 1986), individuals ate construed as deceiving themselves about 73