“…Although this is inconsistent with Roemer et al (1998) who found that helplessness was a superior predictor to fear and horror, it may be that the current subjective criterion is too narrow in the emotional reactions that it captures (Brewin et al, 2000) and the inclusion of reactions such as peritraumatic dissociation (e.g., Ozer, Best, Lipsey, & Weiss, 2003) or cognitive appraisals (e.g., Blanchard et al, 1995) may help to predict PTSD. However, retrospective reports of emotional reactions, such as peritraumatic dissociation, may be subject to reporting biases consistent with current symptom presentation (e.g., Southwick, Morgan, Nicolaou, & Charney, 1997;Zoellner, Sacks, & Foa, 2001).…”