Cross-cultural adaptation, validation and reliability of the Turkish version of Child engagement in daily life measure V2 for children with cerebral palsy

This study aimed to translate the Child Engagement in Daily Life-Version 2 (CEDL-V2) into Turkish and evaluate the psychometric properties, including cultural adaptation, reliability, and validity of the Turkish version (CEDL-V2-T) in children with cerebral palsy (CP). The CEDL-V2 was translated and culturally adapted following international guidelines. Internal consistency and test-retest reliability were examined. Construct validity was assessed using Rasch analysis and known-groups validity across Gross Motor Function Classification System (GMFCS) levels and age groups. The psychometric properties were tested in a sample of 272 children with CP and 100 typically developing children (TDC), aged 1.5–12 years. Internal consistency was high (Cronbach’s α = 0.89–0.98; person separation index = 0.92–0.98). Test-retest reliability was good to excellent for the Frequency (ICC = 0.827, 95%CI = 0.723–0.895), fair to excellent for the Enjoyment (ICC = 0.778, 95%CI = 0.647–0.864), and excellent for the Self-Care (ICC = 0.969, 95%CI = 0.948–0.982). Children with CP scored significantly lower than TDC in all domains, with variations observed according to Gross Motor Function Classification System (GMFCS) levels. Rasch analyses supported item fit, ordered thresholds (after minor rescoring), and unidimensionality for Frequency and Self-Care. The CEDL-V2-T demonstrates strong psychometric properties and is appropriate for evaluating participation and self-care in Turkish children with CP aged 1.5 to 12 years. NCT05871736 The Turkish version of Child Engagement in Daily Life-Version 2 (CEDL-V2-T) is a psychometrically robust, brief, and accessible proxy-report measure for assessing the participation and self-care in children with cerebral palsy, suitable for both clinical and research use.Integrating participation frequency, enjoyment, and self-care performance provides a comprehensive perspective that supports individualized, family-centered intervention planning.Its broad age coverage (1.5-12 years) enables longitudinal monitoring of change and evaluation of rehabilitation outcomes over time. The Turkish version of Child Engagement in Daily Life-Version 2 (CEDL-V2-T) is a psychometrically robust, brief, and accessible proxy-report measure for assessing the participation and self-care in children with cerebral palsy, suitable for both clinical and research use. Integrating participation frequency, enjoyment, and self-care performance provides a comprehensive perspective that supports individualized, family-centered intervention planning. Its broad age coverage (1.5-12 years) enables longitudinal monitoring of change and evaluation of rehabilitation outcomes over time.