The present study aimed to evaluate the reliability and validity of the cognitive sub-test of the Preschool Developmental Assessment Scale (PDAS) for Hong Kong Chinese children. Participants included 378 children (189 boys and 189 girls) aged 3-6 years old, with 324 children with typical development and 54 children with developmental disabilities. They were administered the cognitive sub-test of the PDAS and the Wechsler Preschool and Primary Scale of Intelligence - Revised (WPPSI-R). The PDAS cognitive sub-test total scores correlated positively with the WPPSI-R scores. It could differentiate children from different age groups, with younger children attaining significantly lower scores than older children. The sub-test could also differentiate children with typical development from those with developmental disabilities, with the latter attaining significantly lower scores. The sensitivity and specificity were around 80%. Internal consistency (KR-20) was .93 and test-retest reliability was .81. The cognitive sub-test of the PDAS was found to be a promising screening tool for the identification of preschool children with developmental disabilities.
- Preschool children
ASJC Scopus subject areas
- Developmental and Educational Psychology
- Clinical Psychology