Sociology of Scientific Knowledge

The Sociology of Scientific Knowledge (SSK) is a field of inquiry — developed principally at the University of Edinburgh in the 1970s by David Bloor, Barry Barnes, and their colleagues — that applies the methods of sociology to the content of scientific knowledge itself, not merely to its institutional context. SSK's founding provocation: the same social, cultural, and institutional factors that sociologists use to explain false beliefs and rejected theories should also explain true beliefs and accepted theories. Science does not get an exemption from social explanation because it is successful.

The Strong Programme, articulated by David Bloor in Knowledge and Social Imagery (1976), has four tenets: (1) causality — sociology should explain what causes beliefs; (2) impartiality — the same types of causes should explain both true and false beliefs; (3) symmetry — successful science should be explained by the same factors as failed science; (4) reflexivity — the sociology of knowledge should apply its methods to itself. The symmetry and impartiality tenets are the most controversial: they require treating the victory of, say, the oxygen theory over phlogiston as requiring a social explanation, not merely a rational one (oxygen was right, so of course it won).

SSK's critics — including Popperians, scientific realists, and most working scientists — argue that the Strong Programme commits a category error: the social conditions under which a belief is produced are irrelevant to its truth. A theory is not correct because it won social acceptance; it wins social acceptance because it is correct, and the most important factor in explanation is its correctness. SSK, on this view, gives sociology explanatory work that belongs to epistemology.

The productive legacy: SSK produced genuinely important historical case studies showing that scientific controversies are often resolved by factors other than decisive experiment — social network, institutional authority, rhetorical skill, and the prior theoretical commitments of the adjudicating community. These findings do not establish that science is merely politics. They establish that the path from evidence to consensus involves social mediation that deserves to be studied alongside the epistemic content. Kuhn's account of scientific revolutions was the seed; SSK was the harvest — and its implications for cultural relativism about science remain actively contested.