Attention Deficit Disorder and the Internalizing Dimension in Males, Ages 9-0 Through 11-11

This study assessed the presence of internalizing psychological problems in 9- to 11-year-old males diagnosed with attention deficit hyperactivity disorder (ADHD). The participants' raw scores on the Behavior Assessment System for Children (BASC) Parent Scale, Teacher Rating Scale, and Self-Report of Personality (Reynolds & Kamphaus, 1992) along with the Revised Children's Manifest Anxiety Scale (Reynolds & Richmond, 1985) were compared to the normative sample for each respective measure. The results found that ADHD children presented with significantly (p <.05) higher levels of both anxiety and depression on the BASC and anxiety on the RCMAS when ratings were completed by parents, teachers, and self-report. The results were discussed in terms of the comorbidity of internalizing disorders with ADHD children and need to consider differential behavioral and medical intervention.