https://www.selleckchem.com/pr....oducts/nsc-23766.htm
The current study aimed to investigate the frequency of impairment in different functional domains of life and the relationship between sex and age and functional impairment in school-based samples of Iranian children and adolescents. A sample of 270 children (ages 6-11) enrolled in two public elementary schools and a sample of 386 adolescents (ages 12-17) enrolled in four public secondary schools were selected by multistage sampling. The Persian version of the parent report form and self-report form of the Weiss Functional Impairment