The Relationship Between Intelligence Quotient Level and Quality of Life in Children with Intellectual Disability at Special Schools in Padang City

Background: Intellectual disability affects intellectual functioning and adaptive behavior, leading to a generally lower quality of life compared to the general population. The relationship between Intelligence Quotient (IQ) levels and quality of life requires further exploration in Indonesia. Objective: To investigate the relationship between IQ levels and quality of life in children with intellectual disabilities at special schools in Padang City. Methods: A cross-sectional study was conducted among 95 children with intellectual disabilities aged 12-18 years from May to August 2025. IQ was assessed using the Coloured Progressive Matrices and the Culture Fair Intelligence Test. Quality of life was measured using the PedsQL 4.0 Generic Core Scales parent-report version. The Chi-Square test was used to evaluate relationships between variables (p