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Model-based PID-5 domain clusters and levels of impairment in self and interpersonal functioning

In the DSM-5 Section III Alternative Model for Personality Disorders (AMPD), the severity of personality pathology (criterion A) and the presence of pathological personality trait domains and facets (criterion B) are assessed independently. Recent studies have challenged this assumption of independe...

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Bibliographic Details
Published in:Personality and individual differences 2021-03, Vol.171, p.110477, Article 110477
Main Authors: Bastiaens, Tim, Wilderjans, Tom F., Bogaerts, Annabel, Lowyck, Benedicte, Luyckx, Koen, De Hert, Marc, Vanwalleghem, Dominique, Claes, Laurence
Format: Article
Language:English
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Summary:In the DSM-5 Section III Alternative Model for Personality Disorders (AMPD), the severity of personality pathology (criterion A) and the presence of pathological personality trait domains and facets (criterion B) are assessed independently. Recent studies have challenged this assumption of independence but the interplay between criterion A and criterion B remains subject of further research. Using model-based cluster analysis on the criterion B trait domains, we compared criterion B trait domain clusters with respect to criterion A severity measures. Results revealed a six-cluster solution. Four of the six clusters represented a gradual increase in criterion B trait domains, paralleling an increase in criterion A severity. Two clusters did not follow this pattern: an Anxious-Detached type exhibiting overall high criterion A severity scores, and an emotionally stable psychopathy type exhibiting a number of low criterion A severity scores. Our findings indicate that criterion B domain clusters are informative of criterion A severity, relevant for future conceptualizations of the AMPD. •DSM-5 Section III maladaptive personality traits form six model-based clusters.•Increase in maladaptive trait scores parallels increase in levels of severity.•The DSM-5 Section III independent assessment of traits and severity needs revision.
ISSN:0191-8869
1873-3549
DOI:10.1016/j.paid.2020.110477