Study of face validity and reliability of the Persian-version of Behavior Rating Inventory of Executive Function (BRIEF) in ADHD children

Executive functions in children are assessed in different ways, but the most prestigious and valuable of them is the use of child` daily performance report in his real life. The purpose of the present study was preparation of Persian version of "Behavior Rating Inventory of Executive Function" (BRIEF) as well as to study its face validity and reliability in ADHD children aged between 6-11 years old. The questionnaire was completed by parents. In this study, translation of the BRIEF to Persian language was done at First step. Then Face validity was determined by 10 subjects (Parents) that rate Difficulty, Ambiguity and Relevancy of questionnaire`s items. Pearson correlation coefficient and Cronbachʼs alpha were respectively used to evaluate and report the test-retest reliability and the internal consistency of total items. All BRIEF's items were easy and had accurate translation with favorable quality. To assess the internal consistency of Persian version of the questionnaire, Cronbach’s alpha was used. Cronbach’s alpha coefficient for the total items was 0.86 which indicates appropriate reliability BRIEF in the Persian version of the questionnaire. The Pearson correlation values for Behavioral Regulation, and the Metacognition Index, and the whole questionnaire were 0.83, 0.84 and 0.88, respectively. The above findings indicated a good validity and reliability for the Persian version of BRIEF. The results of this study show that the items of Persian version of "Behavior Rating Inventory of Executive Function" has adequate face validity and reliability for the assessment of executive functions in ADHD children 6-11 years.