Extracurricular Involvement in Children with ADHD Brenda V. Alvarez Mentor: Dr. Carol Whalen Attention-deficit/hyperactivity disorder (ADHD) affects a significant portion of today’s youth. Although medication helps alleviate difficult symptoms associated with ADHD and allows children to function more effectively, problematic moods and behaviors often remain, which have direct implications for children’s daily lives and learning opportunities. A developmentally important and relatively unstudied aspect of ADHD is involvement and performance in age-appropriate extracurricular activities during childhood. The relationship between activity participation and ADHD was examined through secondary analysis of data collected from a one-week electronic diary study of children with ages from 8 to 12 years. Twenty-eight children with ADHD (19 males, 9 females) and 28 comparison age-mates (19 males, 9 females) participated with their mothers. It was found that children with ADHD were less likely to participate in extracurricular activities overall than were their comparison peers. In particular, children with ADHD participated in fewer individual sports and youth groups than did comparison children. Interestingly, no group differences were found in the children’s ability to perform these activities (as reported by parents), suggesting that parental time constraints or children’s peer relations may be affecting participation rates. It is also possible that methodological differences in the assessment of ability and extracurricular participation may have contributed to the pattern of findings, given that measures of participation were more unobtrusive and thus presumably less susceptible to bias. These findings have implications for understanding and treating ADHD, because extracurricular activities provide opportunities for learning important social and performance skills.