reliability and validity of wechsler intelligence scale for children­third edition (wisc-iii) in iran

the purpose of this study is to adapt, normalize and to determine reliability and validity of wisc. at adaptation stage, 835 students were selected through a systematic random sampling from 30 schools, after completion the test, suitable items were chosen according to iranian culture. then, at normalizing stage, 2456 boys and girls were selected through a systematic random sampling from 72 educational departments. the results showed that the reliability coefficients is higher than 0.95 and the validity is high the wisc-111 has sufficient and satisfied reliability and validity in iranian students.