The Behavior Rating Inventory of Executive Function (BRIEF) is a standardized rating scale developed by the National Cancer Institute. It is designed to assess executive function behaviors in children and adolescents, as observed by parents or teachers in both school and home environments.The Behavior Rating Inventory of Executive Function (BRIEF) is a standardized rating scale developed by the National Cancer Institute. It is designed to assess executive function behaviors in children and adolescents, as observed by parents or teachers in both school and home environments.