A notable feature of classical American pragmatism is its close association with the birth of experimental psychology. In particular, William James’ work as a psychologist influenced, and was influenced by, his pragmatism. This paper seeks to support this reading of the relation between Jamesian psychology and pragmatism, particularly through his “Sentiment of Rationality” and the later contention that the true is the satisfactory. In addition, James’ insights are tested and expanded through reference to contemporary research on processing fluency, as well (...) as concepts of ecological rationality. (shrink)