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Screening for personality disorders: A new questionnaire and its validation using latent class analysis
Psychological Test and Assessment Modeling
  • Christian Geiser, Utah State University
  • Julia Lange, University of Osnabrück
  • Karl Heinz Wiedl, University of Osnabrück
  • Henning Schöttke, University of Osnabrück
Document Type
Pabst Science Publishers
Publication Date

We evaluated a new screening instrument for personality disorders. The Personality Disorder Screening (PDS) is a self-administered screening questionnaire that includes 12 items from the Personality Self Portrait (Oldham & Morris, 1990). Sampling and methods: The data of n = 966 participants recruited from the non-clinical population and from different clinical settings were analyzed using latent class analysis. Results: A 4-class model fitted the data best. It confirmed a classification model for personality disorders proposed by Gunderson (1984) and showed high reliability and validity. One class corresponded to “healthy” individuals (40.6 %), and one class to individuals with personality disorders (17.2 %). Two additional classes represented individuals with specific personality styles. Evidence for convergent validity was found in terms of strong associations of the classification with the Structured Clinical Interview (SCID-II) for diagnosing personality disorders. The latent classes also showed theoretically expected associations with membership in different subsamples. Conclusions: The PDS shows promise as a new instrument for identifying different classes of personality disorder severity already at the screening stage of the diagnostic process.

Citation Information
Christian Geiser, Julia Lange, Karl Heinz Wiedl and Henning Schöttke. "Screening for personality disorders: A new questionnaire and its validation using latent class analysis" Psychological Test and Assessment Modeling Vol. 54 Iss. 4 (2012) p. 323 - 342
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