Abstract

The aim of this research was to investigate the development of executive functions in children with and without ADHD of preschools and primary schools. The population included the male and female children with and without ADHD that were 5 to 12 years old in Iran. Therefore among each age group, 60 subjects (15 girls without ADHD, 15 boys without ADHD, 15 girls with ADHD and 15 boys with ADHD) were selected. Children without ADHD were selected by multistage cluster random sampling and ADHD children were selected by clinicians and Conner’s parental questionnaire. The instruments that have been used are Conner’s parental questionnaire and NEPSY tower test. The results showed a significant differences in executive functions scores between children with and without ADHD at different age groups, But gender differences was not significant. The results reveal that the development of executive functions in children with and without ADHD is rising, but this development has a significant difference in children with and without ADHD which is the noticeable lower performance of ADHD children. Nevertheless, there is no significant difference between male and female groups with and without ADHD.

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