Tim Lewis

  • Curators' Distinguished Professor

Areas of Expertise

  • Behavior Disorders
  • Developmental Disabilities
  • Positive Behavior Supports


Dr. Tim Lewis has been involved in special education for 35 years.  Dr. Lewis has taught students with emotional and behavioral disorders in high school, elementary, and self-contained psychiatric settings.  At present, Dr. Lewis is a Curators’ Distinguished Professor of Special Education at the University of Missouri. Dr. Lewis is past Co-Editor of the journal Behavioral Disorders, Associate Editor of the Journal of Positive Behavioral Interventions, and a member of 13 editorial boards. During his 28-year career in higher education Dr. Lewis has served multiple terms as department chair and associate dean for research.

Dr. Lewis has been involved with developing school-wide systems of behavioral support for over 20 years.  He has worked directly with school teams around the world, secured over $80 million in grants to support his research and demonstration efforts, and is a frequent contributor to the professional literature examining various aspects of Positive Behavior Support. Dr. Lewis directs the University of Missouri Center for School-wide Positive Behavior Support, is Co-Director of the national OSEP Center for Positive Behavioral Interventions and Supports and former Co-Director of the Center for Adolescent Research in Schools. His specialty areas include social skill instruction, functional assessment, and proactive school-wide discipline systems.