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Related Experiment Videos

Personality disorders and the interpersonal octagon.

J Birtchnell1, J Shine

  • 1Institute of Psychiatry, London, UK.

The British Journal of Medical Psychology
|January 5, 2001
PubMed
Summary

The interpersonal octagon model effectively maps personality disorders, with the Person's Relating to Others Questionnaire--Revised Version (PROQ2) showing strong correlations. This study validates the PROQ2's utility in understanding personality disorder tendencies.

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Area of Science:

  • Psychology
  • Psychiatry
  • Personality Disorders

Background:

  • The interpersonal octagon is a theoretical framework for understanding interpersonal tendencies.
  • The Person's Relating to Others Questionnaire--Revised Version (PROQ2) was developed to measure these tendencies.
  • Validating the placement of personality disorders within this model is crucial for clinical application.

Purpose of the Study:

  • To test the validity of the interpersonal octagon model by examining the placement of 10 DSM-IV personality disorders.
  • To assess the efficacy of the PROQ2 in measuring interpersonal relating tendencies within this theoretical structure.

Main Methods:

  • Administered the PROQ2 and the DSM-IV Personality Diagnostic Questionnaire (PDQ-IV) to 107 male prisoners.
  • Analyzed intercorrelations between PROQ2 and PDQ-IV scale scores.

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  • Compared PROQ2 scores of prisoners with those of male students and psychotherapy patients.

    • Main Results:

    • PROQ2 scores for prisoners were intermediate between student and psychotherapy patient groups.
    • High intercorrelations were observed between PROQ2 and PDQ-IV scales, and total scores.
    • All personality disorders showed high correlation with the 'lower close' scale of the PROQ2, with varying degrees of correspondence to predicted locations.

    Conclusions:

    • The PROQ2 demonstrates validity in measuring interpersonal relating tendencies relevant to personality disorders within the interpersonal octagon framework.
    • The study provides empirical support for the proposed locations of most DSM-IV personality disorders within the interpersonal octagon.
    • Further research may refine the placement of certain disorders and explore discrepancies.