Introduction and purpose: Depression is a disorder that affects the psychological, emotional and social health of people with the disease. according to this the present study was conducted aiming to investigate the effectiveness of acceptance and commitment therapy on the self- efficacy of depressed clients at consultation centers.
Methodology: the present study was quasi-experimental with pretest, posttest, control group design and two-month follow-up stage. The statistical population of the present study included clients with depression who referred to consultation centers in the autumn and winter of 2019-2020 in the city of Ahvaz. 40 people with depression were selected from the statistical population through purposive sampling method and they were randomly accommodated into experimental and control group (each group of 20). The experimental group received ten ninety-minute sessions of r acceptance and commitment therapy (Hayes et al, 2004) during two and half months. The applied questionnaires in this study included depression questionnaire (Beck et.al, 1996), self- efficacy questionnaire (Sherer, Madddux, 1982). The data from the study were analyzed through repeated measurement ANOVA.
Findings: the results showed that acceptance and commitment therapy has significant effect on the self- efficacy of the depressed clients at consultation centers (p<0.001) in a way that this therapy succeeded in improving the self- efficacy of depressed client at consultation centers.