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  • Title: Structural validity of the posttraumatic stress disorder checklist among college students with a trauma history.
    Author: Elhai JD, Gray MJ, Docherty AR, Kashdan TB, Kose S.
    Journal: J Interpers Violence; 2007 Nov; 22(11):1471-8. PubMed ID: 17925293.
    Abstract:
    The authors conducted confirmatory factor analyses to test three-factor and four-factor models of posttraumatic stress disorder (PTSD) using the PTSD Checklist with college students reporting a traumatic event history. The authors found support for the three-factor DSM-IV-based PTSD diagnostic model including reexperiencing, avoidance/numbing, and hyperarousal symptom factors, with slightly better support for a four-factor model separating the avoidance and numbing factors. Results further attest to the PTSD Checklist's construct validity, and to research finding that PTSD avoidance and numbing constructs are distinct.
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