A five-factor measure of schizotypal personality traits

Maryanne Edmundson, Donald R. Lynam, Joshua D. Miller, Whitney L. Gore, Thomas A. Widiger

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

Abstract

The current study provides convergent, discriminant, and incremental validity data for a new measure of schizotypy from the perspective of the five-factor model (FFM) of general personality structure. Nine schizotypy scales were constructed as maladaptive variants of respective facets of the FFM (e.g., Aberrant Ideas as a maladaptive variant of FFM Openness to Ideas). On the basis of data from 143 undergraduates, the convergent validity of these nine scales was tested with respect to seven established measures of schizotypy and the respective facets of the FFM. Discriminant validity was tested with respect to facets from other FFM domains and components of schizotypy. Incremental validity was tested with respect to the ability of the FFM schizotypy scales to account for variance in two established measures of schizotypy, after variance accounted for by respective FFM facets and other established measures of schizotypy were first removed. The findings support the validity of these new scales as measures of schizotypal traits and as maladaptive variants of the FFM.

Original languageEnglish
Pages (from-to)321-334
Number of pages14
JournalAssessment
Volume18
Issue number3
DOIs
StatePublished - Sep 2011

Keywords

  • assessment
  • five-factor model
  • maladaptive variants
  • schizotypal personality disorder
  • validation

ASJC Scopus subject areas

  • Clinical Psychology
  • Applied Psychology

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