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      Confirmatory factor analyses of posttraumatic stress symptoms in deployed and nondeployed veterans of the Gulf War.

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      Journal of Abnormal Psychology
      American Psychological Association (APA)

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          Abstract

          Confirmatory factor analysis was used to compare 6 models of posttraumatic stress disorder (PTSD) symptoms, ranging from 1 to 4 factors, in a sample of 3,695 deployed Gulf War veterans (N = 1,896) and nondeployed controls (N = 1,799). The 4 correlated factors-intrusions, avoidance, hyperarousal, and dysphoria-provided the best fit. The dysphoria factor combined traditional markers of numbing and hyperarousal. Model superiority was cross-validated in multiple subsamples, including a subset of deployed participants who were exposed to traumatic combat stressors. Moreover, convergent and discriminant validity correlations suggested that intrusions may be relatively specific to PTSD, whereas dysphoria may represent a nonspecific component of many disorders. Results are discussed in the context of hierarchical models of anxiety and depression.

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          Structural relationships among dimensions of the DSM-IV anxiety and mood disorders and dimensions of negative affect, positive affect, and autonomic arousal.

          Using outpatients with anxiety and mood disorders (N = 350), the authors tested several models of the structural relationships of dimensions of key features of selected emotional disorders and dimensions of the tripartite model of anxiety and depression. Results supported the discriminant validity of the 5 symptom domains examined (mood disorders: generalized anxiety disorder, GAD; panic disorder; obsessive-compulsive disorder; social phobia). Of various structural models evaluated, the best fitting involved a structure consistent with the tripartite model (e.g., the higher order factors, negative affect and positive affect, influenced emotional disorder factors in the expected manner). The latent factor, GAD, influenced the latent factor, autonomic arousal, in a direction consistent with recent laboratory findings (autonomic suppression). Findings are discussed in the context of the growing literature on higher order trait dimensions (e.g., negative affect) that may be of considerable importance to the understanding of the pathogenesis, course, and co-occurrence of emotional disorders.
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            Confirmatory factor analysis of the clinician-administered PTSD Scale: Evidence for the dimensionality of posttraumatic stress disorder.

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              Utility of a new procedure for diagnosing mental disorders in primary care. The PRIME-MD 1000 study

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                Author and article information

                Journal
                Journal of Abnormal Psychology
                Journal of Abnormal Psychology
                American Psychological Association (APA)
                1939-1846
                0021-843X
                2002
                2002
                : 111
                : 4
                : 637-647
                Article
                10.1037/0021-843X.111.4.637
                12428777
                2ac0d3fb-f4df-40fa-9c8a-33a90dbc6300
                © 2002
                History

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