Frequency of scale elevations and factor structure of the Behavior Rating Inventory of Executive Function (BRIEF) in children and adolescents with intractable epilepsy.

The Behavior Rating Inventory of Executive Function (BRIEF) is a standardized rating scale that provides information about the nature and extent of executive function deficits displayed by children and adolescents in daily life. BRIEF protocols completed by parents of 80 children with intractable epilepsy were evaluated with respect to prevalence and severity of scale elevations in the sample, and also with respect to factor structure. Overall, the sample was rated as having significantly more executive function problems than healthy children in the BRIEF standardization sample; elevations on the Working Memory and Plan/Organize scales were most frequently seen. Fully 36% of the sample had four or more significantly elevated scales. However, 31% of the sample had no clinically elevated scales, indicating that executive difficulties, though frequent, are not necessarily characteristic of all children with severe epilepsy. As in the validation studies reported in the manual, a two-factor solution emerged from a principal factor analysis of BRIEF scales. However, the factor structure as given in the manual was not entirely replicated; specifically, the Monitor scale was found to load equivalently on both factors. The results of this study suggest that a substantial proportion of children with intractable epilepsy display significant executive function deficits in daily life. Research into the relationship of BRIEF scores to other measures of executive functioning in children with epilepsy is needed to further clarify its clinical utility.