[Preprint: Forthcoming in History of Psychology] The Rise and Fall of Behaviorism The Narrative and the Numbers Michiel Braat, Jan Engelen, Ties van Gemert, and Sander Verhaegh1 Tilburg University The history of twentieth-century American psychology is often depicted as a history of the rise and fall of behaviorism, the view that psychology should become “a purely objective experimental branch of natural science” (Watson, 1913, 248). Where early twentieth-century psychologists aimed to redefine their discipline as a science of behavior, the popularity of 1 All authors contributed equally to this work (author names listed in alphabetical order). We would like to thank Nees Jan van Eck, members of the History of Behavior Analysis mailing list (especially Nicole L. Banks and François Tonneau), audiences at conferences at the University of Amsterdam, the CEU Institute for Advanced Study Budapest, and the Tilburg School of Humanities and Digital Sciences, and the anonymous referees of History of Psychology for their valuable comments and feedback. This research is funded by the Tilburg School of Humanities and Digital Sciences Research Traineeships Programme. In addition, Verhaegh’s research is funded by The Netherlands Organisation for Scientific Research (grant 275–20–064). Correspondence concerning this article should be addressed to Jan Engelen (
[email protected]) and Sander Verhaegh (
[email protected]), Tilburg School of Humanities and Digital Sciences, Tilburg University, Warandelaan 2, 5037AB, Tilburg, The Netherlands. © 2020, American Psychological Association. This paper is not the copy of record and may not exactly replicate the final, authoritative version of the article. Please do not copy or cite without authors' permission.