Abstract
The purpose of this study is to make clear the relationship between fluctuation in perceived selfefficacy, which is successively self-evaluated during every treatment session, and behavioral changes accompanied by the elimination of fear responses to eye-to-eye confrontation, and to examine how the perceived self-efficacy functions as the antecedent determinant of behavioral change. A fourteen-year-old youngster, who exhibits severe fear responses to eye-to-eye confrontation mainly "in the school, was treated with systematic desensitization. The therapeutic intervention enduring about ten months resulted in notable improvement with regard to subjiective and cognitive (Subjective Unit of Disturbance and perceived self-efficacy), psychophysiological (Heart Rate), and behaVioral measures (performance without fear responses in everyday life and behavioral self-evaluation). As a result of the detailed and successive analyses on the relationship between perceived self -efficacy, which was self-evaluated forecasting the next week after every treatment session, and the behavioral change, which was observed in the following week and measured as a self-evaluation of daily life performance in a week after a preceeding treatment session, it was revealed that the fluctuation of perceived self-efficacy had intense relation to the elimination of fear responses. In other words, it was observed that the stronger the client had judged the perceived self -efficay, the less he felt fear responses at the time of eye-to-eye confrontation and the more certainly he could be confronted with the interpersonal situations in a follOWing week, and vice versa. It was suggested that the perceived selfefficacy, functions as the antecedent 'determinant of behavioral change. The results of this study were discussed from the self-efficacy point of view in the social learning theory.
