The Barkley Deficits in Executive Functioning Scale--Children and Adolescents (BDEFS-CA) is an empirically based tool for evaluating clinically significant dimensions of child and adolescent executive functioning. The present study examined the psychometric properties of Persian version of the BDEFS-CA Long Form parent-report in children and adolescents aged 6 to 18 years old (n = 2,295, 51% girls). The results of confirmatory factor analysis (CFA) consistently underscored a five-factor structure (self-management to time , self – organization/problem solving, self-restraint, self-motivation and self- regulation of emotion), resembling the original factor structure, in Persian language. Additionally, Results showed that Persian version of the BDEFS-CA Long Form demonstrated high internal consistency and test–retest reliabilities. Convergent validity with Childhood Executive Functioning Inventory (CHEXI) and divergent validity between normal and clinical groups were good. Overall, findings provide support for the validity and reliability Persian version of the BDEFS-CA Long Form, which can be used to assess executive dysfunction in daily life activities.

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