Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder, with concomitant executive function deficits often being the focus of empirical and clinical investigation. This study explored the validity of the Behavior Rating Inventory of Executive Function Parent Form (BRIEF;Gioia, Isquith, Guy, & Kenworthy, 2000) for children with ADHD and a matched control sample. Fifty-eight children with ADHD (69% with comorbidity) and 58 matched controls were found to exhibit statistically ( p Ͻ .001) and clinically significant group differences on the BRIEF scales. Discriminant function analyses revealed that the Behavior Regulation and Metacognition Indexes accurately classified 82% of the sample (86% of controls and 79% of children with ADHD correctly identified). The Behavior Regulation Index was found to make the most significant contribution overall to the discriminant function, consistent with arguments that response inhibition is the primary deficit in ADHD. Implications and future research are discussed.

Clear links between temperament, psychopathology, and neuropsychological functioning exist; however the interrelations among temperament and neuropsychology, and their impact on functioning in typically developing children is not as well understood. This study examined the degree to which neuropsychological functioning, as measured by the NEPSY, moderates the impact of temperament on global functioning, as measured by the Children's Global Assessment Scale (CGAS), in 74 typically developing preschoolers. Temperament was assessed via parent ratings on the Children's Behavior Questionnaire (CBQ) and teacher ratings on the Temperament Assessment Battery for Children--Revised (TABC-R). Moderation analyses revealed significant interactions between verbal-executive skills and both child emotionality and lack of task persistence in predicting global functioning. The interaction patterns were mostly consistent across measures and indicated that when lower neurocognitive scores were coupled with higher levels of expressed negative emotions and more difficulties in task persistence, global functioning was at its lowest. In contrast better neurocognitive functioning mitigated the impact of high expressed emotions on global functioning. These findings support past literature and indicate that emotional and cognitive functioning interact to effect young children's global functioning.

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