Validity and reliability of the APRI Aggression Assessment Scale in Mashhad Adolescents
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Abstract
The aim of the present study was to validate and make reliable the APRI aggression assessment scale in girl adolescents Mashhad . The study was descriptive method aiming at test making. The statistical population included the high-school girl students in Mashhad during the 1391-92 academic year. The sample was comprised of 405 high-school students in the areas 5 and 6 of Mashhad who were chosen through multistage cluster sampling method. In order to collect data, the AGQ aggression scale -which was normalized by Najjarian and Zahedifard- and the APRI aggression scale – which was validated by Parada- were utilized. Validity coefficient, factor analysis, and Pearson‘s correlation coefficient were used for the data analysis. The obtained data were analyzed using the SPSS.2O software. The results showed that using the Cronbakh’s alpha, the overall reliability of the scale, bully factor and victim factor were 0.94, 0.92 and 0.92, respectively, revealing the internal consistency of scale for Iranian students. The results of the exploratory factor of the principal component analysis (PCA) by using the Varimax rotation, showed that the translated scale included the bully and victim factors which explained 44.83% of the total variance. This obtained value is appropriate psychometrically. Considering the result of this study it can be said that the Persian version of APRI aggression scale has an adequate reliability and validity in the Iranian society and could be used to measure the female high school students’ aggression.
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