A leading proponent of developmental approaches to children with disabilities, Dr. Hodapp's interests relate to the so-called indirect effects of genetic mental retardation disorders on others, intellectual strengths and weaknesses in Down syndrome, and the possibilities of etiology-based educational interventions. He is the author of Development and Disabilities: Intellectual, Sensory, and Motor Impairments (Cambridge University Press, 1998), and co-editor of the Handbook of Mental Retardation and Development (Cambridge University Press, 1998). Dr. Hodapp is also a member of the editorial boards of the American Journal on Mental Retardation and Mental Retardation.