Validation of Adolescent Dissociative Experiences Scale in Iran
Subject Areas :Nieusha alaii fardzari 1 , Adis kraskeban 2
1 - کارشناس ارشد روانشناسی بالینی
2 - عضو هیات علمی دانشگاه آزاد اسلامی واحد کرج
Keywords: Reliability, Validity, Keywords: Adolescence Dissociative Experiences (A-DES), Factor Analysis (exploratory and confirmatory), Norm Navigation,
Abstract :
The aim of this study was to evaluate the psychometric characteristics of Adolescent Dissociative Experiences Scale (A-DES) in Iranian society. This study was form descriptive-type research. The study sample consisted of 530 students (280 female and 250 male) selected in a multistage random cluster among students of Alborz Province high schools;After the translation of the Dissociative Experiences Scale of teens and revert back to the original language, the scale was translated into Farsi again. After final approval, surveys were taken for implementation of questionnaires in the sample. In order to answer the research questions and examine the hypotheses of research, analyses of classical psychometric theory including analysis of exploratory factor analysis and confirmatory factor analysis with principal components were used. Also to check the validity of the scale, some methods were used including the correlation between the total score and subscales as convergent validity, dividing method and Cronbach's alpha coefficient to estimate the internal consistency and tables of norm scale for presenting the Z sigma-aligned scores, the T score and rating percent in SPSS software. The results showed that exploratory factor analysis and confirmatory factor analysis showed the validity of the test to measure the Dissociative Experiences of teens in the Iranian community. The results of this study confirmed the convergent validity of Dissociative Experiences Scale of juveniles in Iran. Estimated coefficients showed reliability of scale and subscales in both dimensions of internal consistency and reliability. Also regarding the results of comparison of juveniles Dissociative Experiences scores and its subscale in gender groups, norm scale was drafted based on the percentile ranks and Z and T-standard scores for all subjects.
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