Popper’s theory of World 3 is often regarded as incongruent with his defense of methodological individualism. This article criticizes this widespread view. Methodological individualism is said to be at odds with three crucial assumptions of the theory of World 3: the impossibility of reducing World 3 to subjective mental states because it exists objectively, the view that the mental functions cannot be explained by assuming that individuals are isolated atoms, and the idea that World 3 has causal power and influences (...) both individual minds and actions. This article demonstrates that the inconsistency thesis stems from a confusion between methodological individualism as understood by Popper and reductionism. The reasons for this confusion are analyzed and clarified. It is argued that two variants of methodological individualism can be distinguished, and that unlike psychologistic individualism, Popper’s nonatomistic individualism is fully consistent with his theory of World 3. (shrink)

Summary The paper considers arguments for and against correction and elimination of the basic conceptual categories as well as theories of social science. It is argued that some correction of at least some basic social notions is called for. A great part of the paper consists in a conceptual investigation of such notion of correction in terms of different notions of corrective explanation.

This critical note concerns Harold Kincaid's "Reduction, Explanation and Empiricism" (this journal, December 1986). Kincaid criticizes methodological individualism on several grounds. The present note argues that Kincaid fails at least in his attempt to show that it is false that individualistic theory suffices to fully explain social phenomena. Kincaid's main reason for claiming that individualistic theory is insufficient is that it cannot adequately explain social kinds. The present note contends that an individualist can suitably reinterpret the social talk in question (...) and so succeed in explaining social phenomena. In some cases his explanatory factors will presumably be direct counterparts to the holist's explanatory social kinds, whereas in some other cases they may not be--arguably need not be. (shrink)