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Abstract
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Objective:The present study aimed to develop the Interpretation Bias Questionnaire for Obsessive-Compulsive Personality Disorder and to determine its psychometric properties among university students. Methods and Materials:This research was conducted within the positivist paradigm using a quantitative approach through exploratory and confirmatory factor analyses. The target population comprised students from Gonbad Kavous University, from whom 310 individuals (184 women and 126 men) were selected using stratified random sampling from October to December 2024.To assess the variables, three questionnaires were used: the Obsessive-Compulsive Personality Disorder Questionnaire (OCPDQ), the Interpretation Bias Questionnaire for Obsessive-Compulsive Personality Disorder (OCPDIB), and the Flourishing Scale (FS) for psychological well-being. Findings:Based on exploratory factor analysis conducted using SPSS-26, the 30 questionnaire items were categorized into six components, with Cronbach's alpha coefficients ranging from 0.70 to 0.86. Additionally, the results of confirmatory factor analysis using AMOS-24 indicated adequate and appropriate reliability of the questionnaire's constructs. Conclusion:Therefore, given that this questionnaire is a reliable and valid instrument, it can be utilized by specialists to assess interpretation biases in individuals with obsessive-compulsive personality disorder
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