Evaluation of test-retest reliability and concurrent validity of the Italian version of the pediatric evaluation of disability inventory in children with down syndrome: a cross-sectional study

Down Syndrome (DS) is a common genetic disorder caused by trisomy 21. Due to cognitive challenges associated with DS, individuals often experience difficulty performing activities of daily living (ADLs), at levels that can range from mild to significant. This study aimed to measure psychometric properties of the Italian version of the Pediatric Evaluation of Disability Inventory (PEDI-I) in the DS population.