هنجاريابي آزمون هوش ويليامز براي كودكان با نارسايي بينايي

ADAPTATION AND STANDARDIZATION OF THE WILLIAMS INTELLIGENCE TEST FOR CHILDREN WITH DEFECTIVE VISION

The purpose of the present study was to adapt and standardize the Williams Intelligence Test for Children with Defective Vision: A test for blind and partially sighted children. This test has been used in various studies since 1956 and consists a total of one hundred verbal and non-verbal items. The test has been designed largely based on an earlier version of the Stanford-Binet Scale and intended to use with children of about 5-15 years old. One hundred and thirty four students (age range 11.5-14.5 years old) from regular and special schools in Tehran (Iran) participated in the study. The results indicate high reliability and validity. Spilt-half reliability for the three groups of subjects ranged from 0.64 to 0.87 and the correlation between intelligence quotient and academic achievement was 0.73.