Personality Assessment Questionnaire for ICD‐11 personality trait domains: Development and testing

Abstract

BACKGROUND: We aimed to develop a questionnaire suitable for the assessment of trait domains in the forthcoming International Classification of Diseases 11th Revision (ICD-11). This questionnaire, the Personality Assessment Questionnaire for ICD-11 (PAQ-11) personality trait domains, was intended as a short and reliable self-report measure. METHOD: The initial items were derived from the relevant traits of an established version of the Personality Assessment Schedule. In Phase 1, item selection and scale construction proceeded iteratively using data from 334 female university students and 75 psychiatric patients (combined N = 409) in Korea. In Phase 2, a validation study of the scale was conducted in a subset of the sample from Phase 1, who were deemed to be at high risk of personality disorders (N = 210). RESULTS: Exploratory and confirmatory factor analyses of the Personality Assessment Schedule items created a 17-item scale. This scale, PAQ-11, demonstrated adequate convergent and discriminant validity with the five-factor model, the Diagnostic and Statistical Manual of Mental Disorders Fifth Edition traits model and emotional difficulties. The results were consistent with its underlying theoretical structure. CONCLUSIONS: The PAQ-11 appears to be potentially promising in terms of clinical utility to assess the five domains of ICD-11 personality disorders. More research must be conducted in other cultural backgrounds with gender-balanced populations. © 2020 John Wiley & Sons, Ltd.

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