 The National Research Council (NRC)—an arm of the US National Academies of Science—issued a report, influenced by postpostivistic philosophy of science (NRC 2002), that argued that this criterion was far too narrow. Numerous essays have appeared subsequently that point out how the “gold standard” account of scientific rigor distorts the history of science, how the complex nature of the relation between evidence and policy-making has been distorted and made to appear overly simple (for instance the role of value-judgments in linking empirical findings to policy directives is often overlooked), and qualitative researchers have insisted upon the scientific nature of their work. Nevertheless, and possibly because it tried to be balanced and supported the use of RFTs in some research contexts, the NRC report has been the subject of symposia in four journals, where it has been supported by a few and attacked from a variety of philosophical fronts: Its authors were positivists, they erroneously believed that educational inquiry could be value neutral and that it could ignore the ways in which the exercise of power constrains the research process, they misunderstood the nature of educational phenomena, and so on. This cluster of issues continues to be debated by educational researchers and by philosophers of education and of science, and often involves basic topics in philosophy of science: the constitution of warranting evidence, the nature of theories and of confirmation and explanation, etc. Nancy Cartwright’s important recent work on causation, evidence, and evidence-based policy adds layers of both philosophical sophistication and real world practical analysis to the central issues just discussed (Cartwright &amp; Hardie 2012, Cartwright 2013; cf. Kvernbekk 2015 for an overview of the controversies regarding evidence in the education and philosophy of education literatures). 