Richard Kitchener

Bertrand Russell is widely considered to be one of the founders of analytic philosophy, epistemology, and philosophy of science. Individuals have usually stressed his early philosophical contributions as seminal in this regards. But Russell also had another side–a naturalistic side–leading him towards a naturalistic epistemology and naturalistic philosophy of science of the type Quine later made famous. My goal is to provide an outline of Russell's naturalistic epistemology and the underlying philosophical motivations for such a move. After briefly presenting Russell's conception of the nature of philosophy, I sketch his theory of philosophical method, which is a version of the method of analysis. This provides the underpinnings for a discussion of his Naturalistic Epistemology, which led him to adopt a version of a behavioristic epistemology. Although Russell vacillated on the question of the adequacy of such an account, it provided a major element in his later philosophical views. I suggest that we must reevaluate our conception of the history of analytic philosophy and, in particular, our understanding of Russell's place in the history of 20th century philosophy.

The Conduct of Inquiry is a practical introduction to logic and scientific method. It provides a comprehensive and current discussion of the logic of scientific method and scientific reasoning. The author places consistent stress on the evaluation of actual scientific reasoning and the development of critical thinking skills by employing numerous examples that require the application of the principles discussed in the text. Each chapter lays out basic, underlying principles of logic and scientific method and illustrates them by reference to detailed case studies in the history of science. The method of proceeding from concrete case studies to general principle embodied in the examples provides an understandable progression for those learning the basic ideas of logic and scientific method

According to the standard account, logical positivism was the philosophical foundation of psychological neo-behaviorism. Smith (1986) has questioned this interpretation, suggesting that neo-behaviorism drew its philosophical inspiration from a different tradition, one more in keeping with naturalistic epistemology. Smith does not deny, however, the traditional interpretation of the philosophy of logical positivism, which sets it apart from naturalistic epistemology. In this article I suggest (following recent historical scholarship) that a more careful reading of the leading figure of logical positivism, Rudolph Carnap, shows an important naturalistic component in his philosophy. Hence, we must reevaluate our standard interpretation of the philosophy of logical positivism and its relation to psychological neo-behaviorism.

Piaget's social psychology is not widely discussed among psychologists, partly because much of it is still contained in untranslated French works. In this article I summarize the main lines of Piaget's social psychology and briefly indicate its relation to current theories in social psychology. Rejecting both Durkheim's sociological holism and Tarde's individualism, Piaget advances a sociological relativism in which all social facts are reducible to social relations and these, in turn, are reducible to rules, values and signs. Piaget's theory of social values takes the form of a social exchange theory characterized in an abstract logical way. Piaget claims social exchange requires normative principles of reciprocity and that individual social development results in such an equilibrium because rationality itself is social and based upon social cooperation. These views, in turn, derive from Piaget's orthogenetic views concerning the course of evolution: development can be characterized as an increase in equilibrium manifested both in individual action and in social interaction

Genetic epistemology analyzes the growth of knowledge both in the individual person (genetic psychology) and in the socio-historical realm (the history of science). But what the relationship is between the history of science and genetic psychology remains unclear. The biogenetic law that ontogeny recapitulates phylogeny is inadequate as a characterization of the relation. A critical examination of Piaget's Introduction à l'Épistémologie Généntique indicates these are several examples of what I call stage laws common to both areas. Furthermore, there is at least one example of a paradoxical inverse relation between the two — geometry. Both similarities and differences between the two domains require an explanation, a developmental explanation. Although such an explanation seems to be psychological in nature, it is not merely empirical but also normative (since psychology is both factual and normative according to Piaget). Hence genetic epistemology need not be reduced to psychology (narrowly conceived), but rather should be seen as being both empirical and normative and thus similar to certain types of contemporary philosophy of science.