Comparing the Effectiveness of Schema Therapy and Acceptance and Commitment Therapy on Personality Type D and Adherence to Treatment in Patients with Coronary Artery Disease

Document Type : Original Article


1 Department of Psychology, Gorgan Branch, Islamic Azad University, Gorgan, Iran

2 Department of Psychology, School of Educational Sciences and Psychology, Ferdowsi University, Mashhad, Iran


Introduction: The purpose of this study was to compare the effectiveness of schema therapy with acceptance and commitment therapy on type D personality and adherence to treatment in coronary heart disease patients.
Method: A  single-subject design with multiple baseline control and 6-week follow-up was applied. Ten men with heart disease were selected by convenience sampling method among patients of Razavi Hospital in Mashhad. The efficacy of treatment protocol in three stages (baseline, 10-session treatment and 6-weeks follow-up) was examined using Type D Personality Questionnaire and  Morisky Medication Adherence Scale (MMAS-8). Data were analyzed using visual charting, Reliable Change Index (RCI), Percentage Recovery Formula and Clinical Significance.
Results: In the post-test phase, schema therapy significantly reduced type D personality and increased adherence to treatment for cardiac patients compared to acceptance and commitment therapy (p < 0.05), but at follow-up, Schema therapy was more effective in reducing type D personality and increasing adherence to treatment.
Conclusion: The results showed that schema therapy significantly improved target behaviors. No clinically important difference evident between schema therapy and acceptance and commitment therapy in term of target behaviors.


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