Abstract
Objective: This research aims to investigate the relationship between disorder severity and ruminative thinking style, emotional schemas, thought-action fusion and reciprocal interaction of these variables at individuals with obsessive compulsive disorder(OCD).
Method: The sample of the study consists of 18 male and 47 female individuals who diagnosed as OCD according to DSM-IV-TR that applied the outpatient clinic of Bakırköy Research Hospital for Psychiatry and Neurology between September 2014 and April 2014. Sociodemographic form, Yale Brown Obsessive Compulsive Scale (YBOCS), Ruminative Thinking Style Questionnaire (RTSQ), Thought Action Fusion Scale (TAFS) and Leahy Emotional Schema Questionnaire (LESQ) were applied to participants. Data analyzed by using SPSS 20 version.
Results: The mean age of participants is 31,80±7,41. According to results determined by using Pearson Correlation Analysis, a significant positive correlation between RTSQ total scores and LESQ ‘weakness against emotions’, ‘acceptance of feelings’, ‘duration’ sub-scales, TAFS ‘likelihood’ sub-scale, YBOCS ‘obsession’, YBOCS ‘compulsion’ and YBOCS total scores was found. Also according to multiple linear regression analysis; its determined that RTSQ total scores predict YBOCS ‘obsession’, YBOCS ‘compulsion’ and YBOCS total scores, TAFS ‘Moral’ sub-scale total scores predict only YBOCS ‘obsession’ total scores.
Conclusion: It can be suggested that treatment objectives at psychotherapy approaches for OCD should involve ruminative response style and TAF ‘Moral’ dimension when all the results evaluated together. While emotional schemas don’t predict OCD severity directly, emotional schemas can have indirect effects on severity of disorder when the correlation between other scales considered.

Key words: Obsessive compulsive disorder, rumination, emotional schema, thought-action fusion