Geoff Colvin draws on his experience as a classroom teacher and administrator, researcher at the University of Oregon, and national public school consultant. Recognized as a national expert on the subjects of school safety and violence prevention, Colvin has provided in-service training for teachers and administrators in more than one hundred school districts and agencies nationally and internationally. Colvin has authored more than sixty publications, books, book chapters, journal articles, and video programs on the subject of teaching and managing students with behavioral problems.
Dr. Martin R. Sheehan integrates a background in research psychology, Direct Instruction, special education, and media development. He continues to serve on numerous NIH Center for Scientific Review study groups, including the Biobehavioral and Social Science Review Group in the area of Risk, Prevention, and Health Behavior.