In Phase II of the study, school counselors/psychologists from at least four separate school districts will implement the protocol developed in Phase I. Using a waitlist control design, sixty children with ADHD in grades 6, 7, and 8 will receive the intervention. Organizational skills, grade point average, and academic impairment will be evaluated at baseline, post intervention and at 8-week follow-up. After implementing the intervention, all participants (i.e., teachers, counselors, psychologists, children and parents) will participate in a series of focus groups and will complete intervention satisfaction questionnaires. These data will inform final revisions to the intervention protocol. The resulting product will be an intervention that targets organizational skills in children with ADHD that has potential for widespread school-based dissemination. The final intervention protocol and effect size estimates from the proposed research will lay the foundation for an IES Goal III test of efficacy.