Abstract

Contemporary philosophy of science tells us that scientific theories are “underdetermined” by their accompanying data in a variety of ways. Briefly put, theories are not constructed on data alone. Psychiatric classification is subject to this same kind of underdetermination. Theories may be determined by a combination of data, historical factors, practical constraints, value commitments, and other factors. While practical constraints (like user-friendliness or compatibility across diagnostic systems) are commonly admitted to be influential in shaping psychiatric classification, the idea that values shape psychiatric classification is still a controversial one. This article addresses this controversy by (1) defining a particular domain or type of value commitment (epistemic values), (2) showing how they might be assumed in psychiatric classification, (3) developing a set of conceptual tools to analyze epistemic value content, and (4) applying this set of tools to concretely illustrate how this type of value is “at work” in shaping classification. A classic paper on the dispute between categorical and dimensional models for personality disorders is systematically examined to illustrate this “epistemic value” rubric.