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The International Classification of Diseases, 11th Edition (ICD-11) has reconceptualized personality disorders (PD), and measures are therefore being developed to aid the assessment of ICD-11 PD. The present study examined the validity of the recently developed self-report inventory the Personality Disorder Severity for ICD-11 (PDS-ICD-11), and its utility in differentiating across ICD-11 PD severity levels in a community mental health sample (n = 232). We examined the associations between the PDS-ICD-11 with various clinician ratings, self-report questionnaires, and informant-report measures of dimensional personality impairment and traditional Diagnostic and Statistical Manual of Mental Disorders, fifth edition PDs. Further, we examined mean group differences in PDS-ICD-11 scores between levels of ICD-11 PD clinician diagnosis. The PDS-ICD-11 exhibited moderate-to-large associations with all clinician ratings, and more variable associations with self-report and informant-report measures. PDS-ICD-11 mean scores were significantly different across all levels of ICD-11 PD clinician-rated diagnostic levels. These findings provide additional promising evidence for the validity and utility of the PDS-ICD-11 for the assessment of ICD-11 PD in community mental health patients. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
Brown et al. (Thu,) studied this question.