Validity and reliability of the Persian ABILHAND-Kids in a sample of Iranian children with cerebral palsy

AbstractAim: To develop a Persian version of ABILHAND-Kids and to determine its reliability and validity in Persian-speaking children with cerebral palsy (CP).Method: The ABILHAND-Kids questionnaire was translated into Persian language and cross-culturally adapted following guidelines. The Persian ABILHAND-Kids was administered to 50 parents of CP children. Among the 50 parents of CP children, 30 of them participated in a test–retest reliability phase. Fifty parents of healthy children participated for discriminative validity.Results: The Rasch analysis indicated the unidimensionality, reliability, and global invariance of the Persian ABILHAND-Kids. The internal consistency reliability was high (Cronbach’s alpha = 0.96). Floor and ceiling effects were insignificant (4%). The Intraclass Correlation Coefficients of test–retest reliability were 0.96 and 0.70 for item difficulties and children’s measures, respectively. The standard error of measurement and smallest detectable change for CP measure were 11.21 ...