Ulster University Logo

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. and Elhai, Jon. D. (2014) Assessing Latent Level Associations Between PTSD and Dissociative Factors: Is Depersonalization and Derealization Related to PTSD Factors More So than Alternative Dissociative Factors? Psychological Injury and Law, 7 (2). pp. 131-142. [Journal article]

[img] Text - Accepted Version
432kB

URL: http://dx.doi.org/10.1007/s12207-014-9196-9

DOI: doi:10.1007/s12207-014-9196-9

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.

Item Type:Journal article
Keywords:Confirmatory factor analysis, Posttraumatic stress disorder, Dissociation, DSM-5, Dissociative Experiences Scale
Faculties and Schools:Faculty of Life and Health Sciences
Faculty of Life and Health Sciences > School of Psychology
Research Institutes and Groups:Psychology Research Institute > Population Health Sciences and Mental Health Services
Psychology Research Institute
ID Code:33119
Deposited By: Prof Cherie Armour
Deposited On:08 Mar 2016 16:29
Last Modified:17 Oct 2017 16:21

Repository Staff Only: item control page