The Cognitive Abilities Scale-Second Edition Preschool Form-Studies of Concurrent Criterion-Related, Construct, and Predictive Criterion-Related Validity

摘要

Three studies examine the validity of the Preschool Form of the Cognitive Abilities Scale-Second Edition (CAS-2). Significant high concurrent criterion-related validity correlations, corrected for restricted range, are found between the CAS-2 and the Detroit Test of Learning Ability-Primary: Third Edition for 26 three-year-olds (r_c = .86) and the Bayley Scales of Infant Development-Second Edition for 20 two-year-olds (r_c = .63). Significant correlations also are evident for the CAS-2 and the Test of Early Language Development-Third Edition for 26 three-year-olds (r_c = .77) and the Adaptive Behavior Assessment System-Second Edition for 20 two-year-olds (r_c = .65). Predictive power is critical when making interpretations regarding future performance. A high, significant correlation (r_c = .72) is observed for the CAS-2 for 37 children at ages 2 and 3 and the Wechsler Intelligence Scale for Children-Third Edition administered 6 years later. Results expand validity evidence for the CAS-2, increasing confidence in interpretations regarding young children's performance.