Externalizing Behavior - Behavior Assessment System for Children-Second Edition (BASC-2)
Externalizing Behavior (EB) was measured via parent report using the Externalizing Problems composite on the Behavior Assessment System for Children (BASC-2, Reynolds & Kamphaus, 2004). The preschool form used with 2- to 5-year-olds (PRS-P) yields an externalizing composite comprised of the Hyperactivity and Aggression subscales. The child form used with 6- to 11-year-olds (PRS-C) yields an externalizing comprised of the Hyperactivity, Aggression, and Conduct subscales.