Factor structure of posttraumatic stress disorder (PTSD) in Australian Vietnam Veterans: Confirmatory factor analysis of the Clinician-Administered PTSD Scale for DSM–5
| Autor: | Robyn O'Sullivan, C. R. Strakosch, John N. Gibson, Madeline Romaniuk, Bruce R. Lawford, Rachel Thomson, David Colquhoun, Ross McD. Young, Sarah McLeay, Wendy Harvey, John Gilmour, Graham Cooksley, Miriam Dwyer, Darrell H. G. Crawford, Joanne Voisey |
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| Rok vydání: | 2020 |
| Předmět: |
business.industry
Clinician Administered PTSD Scale General Medicine Factor structure behavioral disciplines and activities Mental health Confirmatory factor analysis 030227 psychiatry DSM-5 03 medical and health sciences Posttraumatic stress 0302 clinical medicine mental disorders Medicine 030212 general & internal medicine business Clinical psychology |
| Zdroj: | Journal of Military, Veteran and Family Health. 6:48-57 |
| ISSN: | 2368-7924 |
| DOI: | 10.3138/jmvfh-2018-0042 |
| Popis: | Introduction: The Diagnostic and Statistical Manual of Mental Disorders (5th ed.; DSM–5) brought a change to the symptom clusters of posttraumatic stress disorder (PTSD). In line with the DSM–5 changes, an updated version of the Clinician-Administered PTSD Scale (CAPS–5) was released. The CAPS–5 is considered to be the gold-standard measure of PTSD; however, examinations of the psychometric properties and optimal factor structure of this scale are underrepresented in PTSD studies. Methods: This study used confirmatory factor analysis (CFA) to assess the factor structure of the CAPS–5 using a sample of 267 male Australian Vietnam Veterans. Models drawn from the PTSD CFA literature were used to test the underlying dimensions of PTSD: the four-factor DSM–5 model, six-factor externalizing behaviour and anhedonia models, and seven-factor hybrid model. Results: The results found that the DSM–5 model showed slightly less than adequate fit (comparative fit index [CFI] = 0.90, Tucker–Lewis index [TLI] = 0.88, root mean square error of approximation [RMSEA] = 0.064), however, other models showed acceptable fit. The anhedonia model provided a significantly better fit than the other models (CFI = 0.92, TLI = 0.90, RMSEA = 0.059). Discussion: Overall, the results supported the anhedonia model. This result may indicate that the underlying dimensions of PTSD in Australian Vietnam Veterans may best be represented by six distinct factors. |
| Databáze: | OpenAIRE |
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