The point here is not a point about gender, but about classification and independence. Hetero geneity among thought trials is more difficult to achieve than it might appear. Kuhn (1962), in fact, made his reputation on this very difficulty, namely, that thought trials tend toward
homogeneity and create paradigms. Heterogeneity within paradigms is rare. Because preference and experience exert such a strong effect in the generation of thought trials, and because these effects are in the direction of homogeneity rather than heterogeneity, better theorizing necessitates devices that force more independence among thought trials. These devices include heterogeneous research teams (Weick, 1983), eclecticism, generalists, classification which identifies underexploited combinations, and randomizing devices.