Assessing Latent Level Associations Between PTSD and Dissociative Factors: Is Depersonalization and Derealization Related to PTSD Factors More So than Alternative Dissociative Factors?

Cherie Armour, Ateka A. Contractor, Patrick A. Palmieri, Jon. D. Elhai

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Posttraumatic stress disorder (PTSD) criteria in DSM-5 included a dissociative diagnostic subtype characterized by a depersonalization item and a derealization item. Researchers have queried whether this was too restrictive, as alternative dissociative symptomatology may also be characteristic of the subtype. The current study utilized data from 318 Northern Irish students, of which 165 were trauma exposed. Participants were assessed for PTSD symptomatology based on DSM-5 criteria via a modified version of the PTSD Symptom Scale-Self-Report (PSS-5) and dissociative experiences via the Dissociative Experiences Scale (DES). Confirmatory factor analysis of PTSD and DES models revealed an optimal four-factor DSM-5 PTSD model including reexperiencing, avoidance, negative alterations in mood and cognitions, and alterations in hyperarousal and reactivity factors, and an optimal three-factor DES model including absorption, amnesia, and depersonalization/derealization factors. When comparing the correlations between depersonalization/derealization and the four PTSD factors, significant Wald tests of parameter constraints revealed that depersonalization/derealization is more related to alterations in arousal and reactivity (r = .432) compared to avoidance (r = .289), χ 2 (1, N = 165) = 8.352, p = .004. We discuss whether the mechanism for comorbid PTSD and dissociation may be related to PTSD’s arousal factor.
LanguageEnglish
Pages131-142
JournalPsychological Injury and Law
Volume7
Issue number2
DOIs
Publication statusPublished - 2014

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Depersonalization
depersonalization
posttraumatic stress disorder
Post-Traumatic Stress Disorders
Arousal
experience
Dissociative Disorders
Amnesia
mood
Self Report
Cognition
Statistical Factor Analysis
trauma
cognition
factor analysis
diagnostic
Research Personnel
Students
Wounds and Injuries

Keywords

  • Confirmatory factor analysis
  • Posttraumatic stress disorder
  • Dissociation
  • DSM-5
  • Dissociative Experiences Scale

Cite this

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Assessing Latent Level Associations Between PTSD and Dissociative Factors: Is Depersonalization and Derealization Related to PTSD Factors More So than Alternative Dissociative Factors? / Armour, Cherie; Contractor, Ateka A.; Palmieri, Patrick A.; Elhai, Jon. D.

Vol. 7, No. 2, 2014, p. 131-142.

Research output: Contribution to journalArticle

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