Psychological, Social, and Epistemic Factors in the Theory of Science

This article blends psychological and social factors in the explanation of science, and defends the compatibility of a psychosocial picture with an epistemic picture. It examines three variants of the 'political' approach to interpersonal persuasion advocated by Latour and others. In each case an 'epistemic' or mixed account is more promising and empirically better supported. Psychological research on motivated reasoning shows the epistemic limits of interest-driven belief. Against social constructivism, the paper defends the viability of a truth-based standard, and reports how truth-possession can be promoted even when scientific work is motivated by political/professional considerations.