A Dimensional Model of Personality Disorder: Incorporating DSM Cluster A Characteristics

Jennifer L. Tackett, Amy L. Silberschmidt, Robert F. Krueger, Scott R. Sponheim

Research output: Contribution to journalArticlepeer-review

83 Scopus citations

Abstract

The authors articulate an expanded dimensional model of personality pathology to better account for symptoms of DSM-defined Cluster A personality disorders. Two hundred forty participants (98 first-degree relatives of probands with schizophrenia or schizoaffective disorder, 92 community control participants, and 50 first-degree relatives of probands with bipolar disorder) completed a dimensional personality pathology questionnaire, a measure of schizotypal characteristics, and Chapman measures of psychosis proneness. Scales from all questionnaires were subjected to an exploratory factor analysis with varimax rotation. A 5-factor structure of personality pathology emerged from the analyses, with Peculiarity forming an additional factor to the common 4-factor structure of personality pathology (consisting of Introversion, Emotional Dysregulation, Antagonism, and Compulsivity). These results support a 5-factor dimensional model of personality pathology that better accounts for phenomena encompassed by the Cluster A personality disorders in DSM-IV-TR (4th ed., text revised; American Psychiatric Association, 2000). This study has implications for the consideration of a dimensional model of personality disorder in DSM-V by offering a more comprehensive structural model that builds on previous work in this area.

Original languageEnglish (US)
Pages (from-to)454-459
Number of pages6
JournalJournal of abnormal psychology
Volume117
Issue number2
DOIs
StatePublished - May 2008

Keywords

  • DSM-V
  • dimensional models
  • five-factor model
  • personality pathology
  • schizotypal personality disorder

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