Xuelian Jia

From the Hierarchy of Abilities and Skills (HAS) to an Integrated Pediatric and Educational Therapies (IPET) Framework: A Conceptual Model for Assessment and Intervention

Kok Hwee Chia, Meng Kiat Tan & Xuelian Jia · Asian Journal of Pediatric Research · 2026

To understand child development, the Hierarchy of Abilities & Skills (HAS) model provides a structured framework through sequential levels of functioning that range from biological foundations to higher-order cognitive and metacognitive processes. The authors aim to extend th...