فصلنامه روانشناسی شناختی

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The purpose of this study was the effectiveness of acceptance and commitment therapy on logical memory and problem solving skill in people with multiple sclerosis. The research design was a quasi-experimental type with pretest-posttest and control group. The statistical population included all the individuals with multiple sclerosis of Ahvaz in 2018. Thirty of the patients were selected through purposive sampling and randomly divided into experimental and control groups, each congaing 15 subjects.  They were then tested using the Wechsler Memory Scale –III and The Problem-Solving Inventory. Participants in the experimental group received ACT protocol in 6 sessions at 120-minute. The data were analyzed using multivariate analysis of covariance and SPSS-21 software. The results showed the effectiveness of acceptance and commitment therapy to improve logical memory and problem solving skills in the experimental group. Therefore, clinical MS specialists can use this treatment to enhance logical memory and problem solving skills in patients with MS.