Cumulative Record. Chapter 11: Reinforcement Today. Quote 26

. . . where the analyst has studied behavior in a given environment as the manifestation of hidden (even if eventually-to-be-revealed) forces, we can now interpret the same behavior and environment as a set of reinforcing contingencies. In doing so we gain a tremendous advantage, for all terms necessary for such an analysis lie within an observable and often manipulable universe. (p. 173)