Document Type : Research Paper
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Abstract
Background: The Multidimensional Aptitude Battery (MAB) is a group intelligence test based on the Wechsler Adult Intelligence Scale- Revised (WAIS-R). The MAB is designed for the assessment of a wide range of intellectual abilities of both adults and the16-year old or older adolescents. Objectives: The purpose of the present research was to investigate the adaptation, normalization and the psychometric propertiesof the Persian version of the MAB among the Payame Noor Universitystudent population. Methods :First, the subtests were translated into Farsi. Then, some of the subtest items were adapted to the Iranian culture and were ready to be used. Finally, after the pilot study and resolving the errors, the final subtests were administered to a sample group consisting of 315 students of humanities and basic sciences in Payame Noor University of Tabriz.In this study, the mean and the standard deviation of the subtest raw scores were used to produce the standardized scores (with a mean of 50 and a standard deviation of 10) and then the standardized score conversion chart was formulated. Results: The results of the internal consistency and test- retest reliability revealed that the MAB is adequately reliable. All the subtests had middle and high correlations with Raven’s Advanced Matrices’ intelligence test scores, which showed concurrent validity of these subtests. The correlation coefficients in the multidimensional aptitude subtests were in the range of 0.18 to 0.58. The correlation between the general information, vocabulary and picture completion subtest scores and age was positive and significant, but the correlation between digit symbol, spatial, picture arrangement and object assembly and age was negative and significant. The summary of the regression coefficient results showed that vocabulary subtests were the best predictor of the total score of verbal scale and the spatial subtests were the best predictor of the performance scales and the other subtests were of lower ranks. Conclusion: The results of the study indicated that the Persian version of the MAB is a reliable and valid measurement tool that can be used for academic and career counseling purposes, and basic researches.
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