A celebration of the contributions of Montrose M. Wolf and Todd R. Risley


Montros M. Wolf and Todd R. Risley were instrumental in defining and creating the field of applied behavior analysis. Some of their major contributions to this field are discussed.


Journal of Positive Behavior Interventions


  • Glen Dunlap
  • Dean Fixsen

Prevention Levels

  • Primary
  • Secondary
  • Tertiary


  • Administrators
  • PBS Coaches
  • PBS Teams
  • Specialists
  • Teachers

System Impacts

  • Individual Student
  • Targeted Groups
  • Whole School


  • Elementary School
  • Mental Health
  • Systems