Attention-Deficit/Hyperactivity Disorder (ADHD) is one of the most commonly diagnosed childhood disorders, with prevalence rates estimated at 8%. Several of the primary symptoms of ADHD relate to problems with temporal and materials organization (i.e. has difficulty organizing tasks and activities, loses things, is forgetful, and fails to finish school-work). In the school setting, problems with organization manifest as forgetting to complete or losing homework assignments, difficulties planning for the completion of long-term projects and studying for tests, and problems keeping class materials organized. These organizational difficulties become particularly problematic in middle school and are associated with low school grades and high parent and teacher ratings of academic impairment. In fact, organization of homework materials is one of the strongest predictors of academic performance in students with ADHD, above and beyond the impact of intelligence, school services, and ADHD medication use, and mediates the relationship between symptoms of ADHD and school grades.

Given the relationship between temporal and materials organization and poor school performance, it is clear there is a need for interventions to address these difficulties. The PI sought to address this need by completing an IES Goal 2 study to develop a school-based intervention targeting organizational skills that was feasible for school mental health (SMH) providers to implement. The Homework, Organization and Planning Skills (HOPS) intervention was developed and refined based upon input from 20 school mental health (SMH) providers, students with ADHD and their families. SMH providers implemented the HOPS intervention, rated the intervention as highly user-friendly and feasible to implement, and demonstrated excellent fidelity to intervention procedures. Students who received the HOPS intervention made significant improvements in homework problems and organizational skills compared to a waitlist control. The feasibility and fidelity data demonstrate that the intervention has potential for widespread dissemination. Preliminary outcome data suggest that the intervention may significantly improve the academic performance of students with ADHD. However, the small sample size (N=23 HOPS & N=24 control) precludes firm conclusions about efficacy and moderators and mediators of intervention response. Accordingly, the primary goal of this Goal 3 study is to evaluate the efficacy of the HOPS intervention, which focuses teaching students' organization and time-management skills, as compared to an intervention targeting on-task behaviors during homework completion and efficiency of work completion, the Homework Support Intervention (HSI), and to assess moderators and mediators of intervention response.

Middle school students with ADHD (N=260) will be randomly assigned to receive the HOPS intervention or the HSI intervention. Students in both groups will receive the same amount of intervention in terms of duration and frequency of intervention sessions. Six cohorts of students will be recruited for the project. Each cohort will consist of 22 students at each of two schools (44 per cohort) who will be randomly assigned to each of the two conditions. Objective measures of skills implementation, parent and teacher ratings of organization, homework problems, and academic impairment, and school grades will be examined pre and post intervention as well as at 8-week and 6-month follow-ups. Treatment fidelity and integrity will be closely monitored. Moderator and mediator analyses will be used to answer important questions about the types of students most likely to benefit from organizational skills intervention and the key mechanisms of change that lead to improved academic performance. This study has significant potential to improve the academic performance of students with ADHD because the intervention was designed with SMH provider input and has clear potential for widespread dissemination upon proof of efficacy.

Inclusion Criteria:

• Parent consent and subject assent must be provided.
• Must be in Middle School; defined as 6-8 in the recruited schools
• Must be age: 11-15.
• Must meet DSM-IV criteria for ADHD - Predominately Inattentive Type or Combined Type.
• Must have a Full scale IQ score of greater than 80 on the WISC-IV.
• Must receive all of their core class instruction in regular education classrooms.

Exclusion Criteria:

• Diagnosis of Bipolar disorder
• Diagnosis of Psychotic disorder
• Diagnosis of a Pervasive developmental disorder
• Substance dependence
• Diagnosis of Obsessive-compulsive disorder