Abstract
Radical behaviorism is distinguished from other varieties of behaviorism in part by its willingness to include private events among its subjects of analysis. This paper reviews the public-private dichotomy as described by Skinner, and concludes that this dichotomy is based upon faulty assumptions. An alternative conceptualization of events of the private class is proposed, whereby such events are viewed as neither private nor biological in nature. It is argued that while these events are complex and subtle, as interaction of responding and stimulating taking place in the same field of interaction as public events, they are accessible to external observers. The nature of their observation is described, and implications for behavior analysis as a scientific system are provided