A Feasibility Study for Developing aComputerized Adaptive Version of VerbalAbility Test for Gulf Student
Mohammed Al Ajmi, Siti Salina Mustakim, Samsilah Binti Roslan, Rashid Saif Almehrizi · International Journal of Education and Management Engineering · 2024
Employing Computerized Adaptive Testing (CAT) to evaluate verbal ability symptoms proves advantageous over traditional tests by delivering heightened measurement precision and reducing the testing burden.The CAT-Verbal Ability, developed from a large sample of 2689 participants in Gulf countries, underwent meticulous item bank development, ensuring unidimensionality, local independence, and investigating differential item functioning (DIF).The CAT-Verbal Ability item bank has high content validity, is unidimensional, locally independent, and does not have DIF; these outstanding psychometric qualities were confirmed by CAT simulations that were based on real data.With just 14 items needed, CAT simulations showed a high degree of measurement accuracy (r=0.73).In addition to being a psychometrically sound instrument, the proposed CAT-Verbal Ability demonstrated acceptable marginal reliability, criterion-related validity, sensitivity, and specificity.This makes it an efficient assessment method that reduces testing burden while maintaining information integrity, and it also saves time.