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Meta-Analysis
. 2010 Nov;119(4):764-76.
doi: 10.1037/a0020981.

A meta-analytic investigation of the structure of posttraumatic stress disorder symptoms

Tom Yufik  1 , Leonard J Simms
Affiliations
Meta-Analysis

A meta-analytic investigation of the structure of posttraumatic stress disorder symptoms

Tom Yufik et al. J Abnorm Psychol. 2010 Nov.

Abstract

Converging lines of evidence have called into question the validity of conceptualizations of posttraumatic stress disorder (PTSD) based on the Diagnostic and Statistical Manual of Mental Disorders (DSM; American Psychiatric Association, 2000) and suggested alternative structural models of PTSD symptomatology. We conducted a meta-analysis of 40 PTSD studies (N = 14,827 participants across studies) that used a DSM-based measure to assess PTSD severity. We aggregated correlation matrices across studies and then applied confirmatory factor analysis to the aggregated matrices to test the fit of competing models of PTSD symptomatology that have gained support in the literature. Results indicated that both prominent 4-factor models of PTSD symptomatology yielded good model fit across subsamples of studies; however, the model comprising Intrusions, Avoidance, Hyperarousal, and Dysphoria factors appeared to fit better across studies. Results also indicated that the best fitting models were not moderated by measure or sample type. Results are discussed in the context of structural models of PTSD and implications for the diagnostic nosology.

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Figures

Figure 1
Figure 1. Factor loadings and correlations for Model 4a
Figure 2
Figure 2. Factor loadings and correlations for Model 4b
See this image and copyright information in PMC

References

    1. American Psychiatric Association. Diagnostic and statistical manual of mental disorders. 3rd. Washington, DC: Author; 1980.
    1. American Psychiatric Association. Diagnostic and statistical manual of mental disorders. 4th. Washington, DC: Author; 1994.
    1. American Psychiatric Association. Diagnostic and statistical manual of mental disorders. 4th. Washington, DC: Author; 2000.
    1. Andrews L, Joseph S, Shevlin M, Troop N. Confirmatory factor analysis of posttraumatic stress symptoms in emergency personnel: An examination of seven alternative models. Personality and Individual Differences. 2006;41:213–224. doi: 10.1016/j.paid.2005.11.034. - DOI
    1. Anthony JL, Lonigan CJ, Hecht SA. Dimensionality of posttraumatic stress disorder symptoms in children exposed to disaster: Results from confirmatory factor analyses. Journal of Abnormal Psychology. 1999;108:326–336. - PubMed

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