Psychometric properties of the Wechsler Abbreviated Scale of Intelligence (WASI) with an Arab sample of school students.
Author: Abu Hilal, M.M., Al Baili, M.A., Sartawi, A., Abdel Fattah, F., Al Qaryouti, I.A.
Source:
Individual Differences Research, 9(4).
ABSTRACT - The aim of this study was to determine the usability of the Wechsler Abbreviated
Scale of Intelligence (WASI) by investigating its psychometric properties with an Arab sample of
school students from the United Arab Emirates (UAE). Adaptations were made to some verbal
items to fit the Emirates society. Some items of this scale were translated into Arabic language;
other items were developed. The sample for this study consisted of 1721 individuals with an age
range from 6-28 years from all geographic locations in the UAE, and was proportionally
distributed between males and females. Data were analyzed with various procedures such as the
analysis of variance and SEM. Stability and reliability estimates were computed for the subtests
and the total IQ sca1es for each age group and for each gender, and all were adequate. The four
scales discriminated well among the age groups and among normal individuals and individuals
with special needs thus providing support to its usability for clinical assessment. The SEM
analysis confirmed the structure of the scale with verbal and performance scales moderately
correlated (.66).