Dr. Pelham has focused his research on ADHD in children and adolescents. His interests include treatment, development and evaluation, including behavioral treatments, pharmacotherapy, and the combination of the two. Most recently, the treatment research has concentrated more on dosing and sequencing in behavioral, pharmacological and combined interventions. In addition, Dr. Pelham studies the outcomes in adolescence and adulthood of ADHD children, focusing on multiple domains including substance use. His summer treatment program for ADHD children has been recognized by Divisions 53 and 37 of the APA and by CHADD as a model program, is listed on the SAMHSA NREPP list, and is widely recognized as the state of the art in treatment for children and adolescents with ADHD.