This article examines how experimental psychology experienced a revolution as cognitive science replaced behaviorism in the mid-20th century. This transition in the scientific account of human nature involved making normal what had once been normative: borrowing ideas of democratic thinking from political culture and conceptions of good thinking from philosophy of science to describe humans as active, creatively thinking beings, rather than as organisms that simply respond to environmental conditions. Reflexive social and intellectual practices were central to this process as (...) cognitive scientists used anti-positivist philosophy of science simultaneously to justify their own work as valid and also as a model of human thinking. In the process, the normative philosophy of science or ‘good academic thinking’ that cognitive scientists used to reshape the discipline of psychology and characterize themselves became, at the same time, the descriptive model of human nature. (shrink)

When a strange new test of perceptual style called the Rorschach reached the New World in the 1920s, it became almost immediately popular. Developed as a psychoana lytic "X ray" of the psyche, it succeeded because American psychologists wanted and needed it to do so, and to do so as that kind of test. Over a decade later, the MMPI was constructed as a more orthodox personality inventory geared to traditional psychiatric categories While this medical legacy was soon removed or (...) obscured, success was more gradual. After the war, clinical psychologists adopted a professional identity independent of psychiatry. Their personality assessment tools, and what counted as success, came to reflect a reclaimed disciplinary genealogy. Standardized mappings and rule-by-numbers tended to displace a trust in experience and expert Judgment. In this context, "proper" Rorschach use came to be seen as indulgent or sadly mistaken. Supporters of the MMPI were, in contrast, able to claim both science and efficiency on their side and colonized the field. The history of these tests clearly illustrates the process of co-production, of how the right tool can become very wrong as networks dissipate and professional time goes by. (shrink)