بررسي اعتبار و روايي مقياس اختلال تنيدگي پس از ضربه مي سي سي پي (اشل )

EVALUATING RELIABILITY AND VALIDITY OF THE MISSISSIPPI SCALE FOR POST-TRAUMATIC STRESS DISORDER IN SHIRAZ

Mississippi Scale is a well-known Scale for measuring the severity of Post Traumatic Stress Disorder (PTSD). In order to study the reliability and validity of this scale, it was translated into Persian and then back translated to English as suggested by Brislin, Lonner and Throndike (1973). The Persian version was called "Esher. Sixty nine patients with PTSD, 41 patients with anxiety disorders, 30 patients with depression, 31 patients with obsessive compulsive disorders and 93 nonpatients people participated in this study. All participants completed the Eshel, the PTSD Checklist, the Life Events Checklist and the Padua Obsessive Compulsive Scale. The following results confirmed reliability and validity of the Eshel: 1) Significant mean differences between the PTSD, anxiety and nonpatient groups in favour of the PTSD group, 2) Significant correlations between scores in the Eshel and the PTSD Checklist, the Life Events Scale and Padua Obsessive-Compulsive Scale, 3) High internal consistency coefficient (Alpha Coronbach) and test-retest reliability. Performing a principal component analysis on the whole data results in extraction of four factors as follows: intrusive memories, interpersonal problems, difficulty in emotional control and lack of depression.