Interbehavioral psychology and the behavior systems framework: A brief reply

•Similarities among Behavior Systems Theory and Interbehavioral Psychology are considered.•Conceptual differences among the two perspectives are noted.•Misunderstandings pertaining to Interbehavioral Psychology are addressed. The present commentary considers a paper by Silva, Silva, and Machado (2019) published in this special issue, which describes some relations between Behavior Systems Theory and Interbehavioral Psychology. In particular, the systems aspects, field orientation, and role of experimentation in both Behavior Systems Theory and Interbehavioral Psychology are discussed. Similarities and differences among the two perspectives are highlighted, and misconceptions about Interbehavioral Psychology are addressed.