Div. 25 (Behavior Analysis) promotes basic research, both animal and human, in the experimental analysis of behavior and the application of the results of such research to human affairs. The division was founded in 1964 to promote basic and applied research to stimulate exchange of information concerning such research, and to work with other disciplines whose interests overlap those of Div. 25.

Along with these original objectives, today's division addresses contemporary issues related to the philosophy, research, and applied practice of Behavior Analysis. Originally intended to serve as a voice for behavior analysis within the APA, Div. 25 also is involved with promoting behavior analysis within the larger society.