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Factor Structure of the PTSD Checklist for DSM-5

Armour, Cherie, Contractor, Ateka, Shea, Tracie, Elhai, Jon D. and Pietrzak, Robert H. (2016) Factor Structure of the PTSD Checklist for DSM-5. The Journal of Nervous and Mental Disease, 204 (2). pp. 108-115. [Journal article]

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URL: http://dx.doi.org/10.1097/NMD.0000000000000430

DOI: doi:10.1097/NMD.0000000000000430

Abstract

Scarce data are available regarding the dimensional structure of Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5) posttraumatic stress disorder (PTSD) symptoms and how factors relate to external constructs. We evaluated six competing models of DSM-5 PTSD symptoms, including Anhedonia, Externalizing Behaviors, and Hybrid models, using confirmatory factor analyses in a sample of 412 trauma-exposed college students. We then examined whether PTSD symptom clusters were differentially related to measures of anger and impulsivity using Wald chi-square tests. The seven-factor Hybrid model was deemed optimal compared with the alternatives. All symptom clusters were associated with anger; the strongest association was between externalizing behaviors and anger (r = 0.54). All symptom clusters, except reexperiencing and avoidance, were associated with impulsivity, with the strongest association between externalizing behaviors and impulsivity (r = 0.49). A seven-factor Hybrid model provides superior fit to DSM-5 PTSD symptom data, with the externalizing behaviors factor being most strongly related to anger and impulsivity.

Item Type:Journal article
Keywords:PTSD; PCL-5; anger; impulsivity; DSM-5; confirmatory factor analysis
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:33250
Deposited By: Prof Cherie Armour
Deposited On:08 Mar 2016 16:31
Last Modified:08 Mar 2016 16:31

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