“…Contrary to widespread notions that behaviorism lacks depth and is a mechanistic approach to treating simple and behaviorally observable client problems, FAP is concordant with an intensive, emotional, and in-depth therapy experience (Nelson, Yang, Maliken, Tsai, & Kohlenberg, in press; Tsai, Fleming, Cruz, Hitch, & Kohlenberg, in press). Counterintuitively, its major theoretical underpinnings, based on applied behavior analysis, are reinforcement, specification of behaviors of interest, and generalization.…”