the effectiveness of the metacognitive model in treating a case of post-traumatic stress disorder

objective: the aim of this study is to evaluate the effectiveness of the metacognitive model in treating post-traumatic stress disorder. method: in a single-subject experimental trial of multiple baseline type, the treatment process was carried out on an 18-year-old male subject. the patient satisfied the dsm-iv criteria for ptsd and was assessed for pre-duration and post treatment. the scales used in this study included: impact event scale-revised (ies-r), beck depression inventory (bdi-ii), beck anxiety inventory (bai), and subjective units distress scale (suds). in addition, all scales were again completed by the subject at 1-month, 3- month, and 6- month follow-ups. results: the treatment led to reductions in symptoms of ptsd, anxiety, depression and distress. gains were maintained at follow-ups. conclusion: the treatment approach which is based on the metacognitive model, appears to be effective in the treatment of post-traumatic stress disorder.