Association for Behavior Analysis International

The Association for Behavior Analysis International® (ABAI) is a nonprofit membership organization with the mission to contribute to the well-being of society by developing, enhancing, and supporting the growth and vitality of the science of behavior analysis through research, education, and practice.

Henry S. Pennypacker

Pennypacker Henry

University of Florida


Professor emeritus at the University of Florida, Dr. Pennypacker has been a major figure in behavior analysis through his contributions in research, teaching, and service. He has also made significant contributions to instructional design through his work in precision teaching, and his book (with James M. Johnston), Strategies and Tactics of Behavioral Research, now in its third edition, has become a classic and essential reference on methodology in behavior analysis. Many of his students have become major figures themselves, especially in applied behavior analysis. He helped to establish Florida as a model for behavior-based treatment in the area of developmental disabilities. He is perhaps best known both within and outside the field as the developer of methods and devices for effective training of self-examination for breast cancer and founded a company (Mammatech) to further this potentially life-saving effort. This work has been widely recognized in the behavioral medicine and cancer prevention communities. He served as ABAI president in 1986-1987 and has been a very active trustee of the Cambridge Center for Behavioral Studies.




Modifed by Eddie Soh