1Associate Professor, Psychiatric Dep., School of medicine, Tabriz University of Medical Sciences, Tabriz, Iran
2Master of Clinical Psychology, Dep. of Psychology, Tabriz University, Tabriz, Iran
3Master of General Psychology, Dep. of Psychology, Tarbiat Moaalem University, Tehran, Iran
4Master of General Psychology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
5Bachelor of Clinical Psychology, Tabriz University, Tabriz, Iran
Background & Aims: Metacognition is considered as an important factor in the genesis and continuation of
various psychological disorders, particularly obsessive-compulsive disorder and depression. The aim of this
study was comparison of Metacognitive beliefs in Major depression disorder (MDD), obsessive-compulsive
disorder (OCD) and healthy groups.
Methods: A total of 50 depressive patients and 49 OCD patients were selected by available sampling from
the patients referred to psychiatric clinic of Bozorgmehr and consulting centers of Tabriz. The control group
consisted of 51 matched individuals selected from students and staff of Tabriz University of Medical
Sciences. All patients were asked to complete Beck Depression Inventory (BDI-II), Maudsley obsessivecompulsive
Inventory (MOCI) and Metacognitive Questionnaire (MCQ-30).
Results: Both OCD and MDD groups showed significant difference with healthy group in metacognition
total score and all subscales (P<0.001). MDD group had a significant difference with OCD group only in
general negative beliefs and metacognition total score (P<0.05).
Conclusion: Overall, the results of this study indicate that depression and obsessive- compulsive disorder are
associated with disturbed Metacognitive beliefs.