Cumulative Record. Chapter 28: The Operational Analysis of Psychological Terms. Quote 45

. . . by the time Bridgman’s book was published, most of the early behaviorists, as well as those of us just coming along who claimed some systematic continuity, had begun to see that psychology actually did not require the redefinition of subjective concepts. The reinterpretation of an established set of explanatory fictions was not the way to secure the tools then needed for a scientific description of behavior. (p. 427)