On the dimensionalities of the dissociative experiences scale (DES) and the dissociation questionnaire (DIS-Q)

Ira H. Bernstein, Joan Weathersbee Ellason, Colin A. Ross, Johan Vanderlinden

Research output: Contribution to journalArticle

4 Scopus citations


The dimensionalities of the Dissociative Experiences Scale (DES) and the Dissociation Questionnaire (DIS-Q) have been explored by factor analysis by a number of investigators. The general claim is that both scales are multidimensional. However, we argue that, in both cases, this apparent multidimensionality is a form of range restriction that arises because some symptoms are more common than other symptoms. As a result, the resulting subscales derived from the multifactor solutions are so highly intercorrelated as to be incapable of meaningful discriminant validity. The current findings support a more parsimonious single factor solution for both scales.

Original languageEnglish (US)
Pages (from-to)101-120
Number of pages20
JournalJournal of Trauma and Dissociation
Issue number3
StatePublished - Oct 29 2001



  • Dissociation
  • Dissociation questionnaire
  • Dissociative experiences scale
  • Factor analysis

ASJC Scopus subject areas

  • Clinical Psychology
  • Psychiatry and Mental health

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