Abstract: The three-factor structure of posttraumatic stress disorder (PTSD) specified by the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, is not supported in the empirical literature. Two alternative four-factor models have received a wealth of empirical support. However, a consensus regarding which is superior has not been reached. A recent five-factor model has been shown to provide superior fit over the existing four-factor models. The present study investigated the fit of the five-factor model against the existing four-factor models and assessed the resultant factors’ association with depression in a bereaved European trauma sample (N = 325). The participants were assessed for PTSD via the Harvard Trauma Questionnaire and depression via the Beck Depression Inventory. The five-factor model provided superior fit to the data compared with the existing four-factor models. In the dysphoric arousal model, depression was equally related to both dysphoric arousal and emotional numbing, whereas depression was more related to dysphoric arousal than to anxious arousal.
- Posttraumatic stress disorder
- confirmatory factor analysis
- dysphoric arousal
- anxious arousal
Armour, C., O’Connor, M., Elklit, A., & Elhai, J. D. (2013). Assessing Posttraumatic Stress Disorder’s Latent Structure in Elderly Bereaved European Trauma Survivors. The Journal of Nervous and Mental Disease, 201(10), 901-906. https://doi.org/10.1097/NMD.0b013e3182a5befb