Personality disorder diagnostic thresholds correspond to different levels of latent pathology

Steve Balsis, Sara Lowmaster, Luke D. Cooper, Jared F. Benge

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

To meet a diagnosis for a particular personality disorder (PD), among other requirements, a person must exhibit a specified minimum number of the features outlined for that PD, otherwise referred to as the diagnostic threshold. Despite many years of research on the DSM PDs, there is little empirical basis for the chosen thresholds. The present study used mechanisms of item response theory (IRT) to link the diagnostic thresholds of six PDs to their corresponding level of latent PD pathology. Consistent with our hypothesis, analyses of the data from 41,227 participants revealed that PD diagnostic thresholds corresponded to a wide range of latent pathology. For example, the diagnostic threshold for schizoid PD corresponded to 1.54 SDs of pathology whereas the threshold for dependent PD corresponded to 2.72 SDs of pathology. The current analyses have demonstrated for the first time that the latent pathology associated with each PD threshold varies widely, and thus has quantified what others accurately have speculated. Implications and considerations for the future directions of PD classification are discussed.

Original languageEnglish (US)
Pages (from-to)115-127
Number of pages13
JournalJournal of Personality Disorders
Volume25
Issue number1
DOIs
Publication statusPublished - 2011

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ASJC Scopus subject areas

  • Clinical Psychology
  • Psychiatry and Mental health

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