Development of a Psychometric Instrument Based on the Inference-Based Approach to Obsessive-Compulsive Disorder: The Obsessional Probabilistic Inference Scale

作者：Gulec Mustafa^*; Deveci Erdem; Besiroglu Lutfullah; Boysan Murat; Kalafat Temel; Oral Elif

来源：Noropsikiyatri Arsivi, 2014, 51(4): 355-362.

DOI：10.5152/npa.2014.6821

• Obsessional probabilistic inference
• obsessive beliefs
• obsessive-compulsive disorder
• major depression
• validation

Introduction: The current article addresses the validation of the construct of obsessional probabilistic inference in clinical and non-clinical samples. Obsessional probabilistic inference or obsessional doubt refers to a type of inferential process resulting in the belief that a state of affairs %26quot;maybe%26quot; causes development of a maladaptive cognitive coping style in terms of obsessing. %26lt;br%26gt;Methods: The latent structure of the Obsessional Probabilistic Inference Scale (OPIS) was evaluated with confirmatory factor analysis. %26lt;br%26gt;Results: Explanatory and confirmatory factor analyses indicated that a one-factor solution was satisfactory for the instrument, assessing a unidimensional psychological construct. The OPIS was shown to have high internal consistency in all samples, as well as temporal stability, relying on predominantly non-clinical individuals. The scale exhibited high convergent validity and successfully discriminated patients with obsessive-compulsive disorder from both depressive patients and controls. %26lt;br%26gt;Conclusion: The findings replicated and extended the role of reasoning process in the development and maintenance of obsessive compulsive symptoms. The results are discussed in regard to assumptions of the inference-based approach to obsessive-compulsive disorder.

• 出版日期2014-12