An analysis is provided for one possible practical link between rhetorical and social scientific inquiry. That link is found in the rhetoric of the reasoned social scientific fact. Understanding this point of intersection involves grounding a rhetorical theory of how to create and to evaluate arguments (a rhetorical theory of invention and judgment) in the practical problems that confront contemporary social scientists during their efforts to construct reasoned social facts. The applicability of this invention and judgment framework to analysis of (...) the rhetoric of social science is illustrated with reference to a controversy over the legitimacy of rules theoretic explanations of human communication processes. Implications of the practical link between rhetorical and social scientific inquiry are then drawn out. (shrink)