Psychometric Properties of Behavioral Rating Scale of Executive Functions (BRIEF) in Children aged 6 to 12 Years

Due to the wide range of executive functions, Existing questionnaires measure some aspects of these functions. Behavior Rating Inventory of Executive Function (BRIEF )has a greater comprehensiveness and it's made based on the latest insights on executive functions.

The purpose of this study was to validate of this questionnaire in Iranian society.

This research is descriptive, a sample of 516 people was selected by a cluster sampling method from Tehran, East Azarbaijan, West Azarbaijan and Kurdistan provinces. In this way, the final sample was reduced to 441 subjects. Statistical analysis was performed using SPSS 20.

The present inventory consists of eight scales and from the combination of these eight scales the behavioral indicator and cognitive index are obtained. Finally, by combining the score of 8 scales, the total score of the BRIEF test is obtained. The results show that calculated Cronbach's alpha for 8 scales of the questionnaire is between 68 to 86. Also, calculated Cronbach's alpha for behavioral adjustment index, cognitive index and total score of BRIEF questionnaire were 0.86, 0.89, and 0.93 .

According to the findings of this study the brief questionnaire in Iranian society has a desirable credibility as a tool for evaluating executive functions and It is used in research and clinical work as a valid tool.