Abstract
The learned helplessness model and its various revisions suggest that causal attributions influence responses to events. This study examined relationships among the 3-factor symptom clusters of posttraumatic stress disorder (PTSD) represented in the 4th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM–IV; American Psychiatric Association, 1994) and the individual dimensions of dispositional attributional style and trauma-specific attributions (i.e., internal–external, stable–unstable, global–specific). Relationships among attributions and clusters of PTSD symptoms represented by the 4-factor dysphoria model were also examined. Trauma-specific attributions were most predictive of PTSD symptoms, with higher associations for avoidance and numbing symptoms compared to arousal symptoms in the three-factor model and higher associations for dysphoria symptoms compared to arousal and avoidance symptoms in the four-factor dysphoria model. Results suggest that cognitive vulnerabilities could underlie the comorbidity between PTSD and depression and might represent a high-impact target for treatment.