Why do many postpositivists caricature contemporary social science? Why make incorrect claims, for instance about social scientists avoiding values? Why discuss features that often no longer matter, such as seeking laws or predictions? Why reject extreme forms of social science without discussing more sensible forms? Why say little or nothing about scientific methodology, which is a great strength of recent social science? To explain such oversights and caricatures, philosophical analysis will not suffice. These are not isolated intellectual errors, but systematic ones, made by numerous scholars and fostered by social practices and institutional conventions. We thus need ideological analysis, which specializes in explaining institutionalized systems of belief. Speculative explanations are offered for postpositivist caricatures, including not only psychological factors, but also external ones (for example, the arrogance of many social scientists), limitations of language (for example, the ambiguity of the term ‘methodology’), rhetorical strategies (for example, genealogical approaches), and conventions (for example, bad citation practices).