Testing the Dimensionality of PTSD and the Specificity of the Dysphoria Factor

Cherie Armour, Mark Shevlin

Research output: Contribution to journalArticle

Abstract

This study aimed to test the factor structure of Posttraumatic Stress Disorder (PTSD). The resultant PTSD factors were associated with different traumatic experiences. Based on previous factor analytic findings and the DSM-IV formulation, three confirmatory factor models were assessed. The best fitting model was re-fitted within a multiple causes multiple indicators model (MIMIC) which assessed associations between factors and trauma experiences. The sample consisted of 591 respondents from the National Comorbidity Survey who met the criteria for lifetime PTSD measured via a modified version of the Composite International Diagnostic Interview. A correlated four-factor model proposed by Simms et al. provided the best fit to the data. There were no significant associations with trauma experiences and the Dysphoria factor. This current study adds to the growing body of literature supporting a four-factor Dysphoria model. Additionally, this study adds to the literature suggesting that the Dysphoria factor is a non-specific component of PTSD.
LanguageEnglish
Pages11-27
JournalJournal of Loss and Trauma
Volume15
Issue number1
DOIs
Publication statusPublished - 2009

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posttraumatic stress disorder
Post-Traumatic Stress Disorders
trauma
Wounds and Injuries
experience
Diagnostic and Statistical Manual of Mental Disorders
Comorbidity
comorbidity
Interviews
diagnostic
cause
interview
Surveys and Questionnaires

Keywords

  • PTSD
  • CFA
  • LATENT STRUCTURE
  • DYSPHORIA

Cite this

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Testing the Dimensionality of PTSD and the Specificity of the Dysphoria Factor. / Armour, Cherie; Shevlin, Mark.

In: Journal of Loss and Trauma, Vol. 15, No. 1, 2009, p. 11-27.

Research output: Contribution to journalArticle

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