RT Journal Article SR Electronic T1 Similarity and Superunknowns: An Essay on the Challenges of Educational Research JF Harvard Educational Review JO herp FD Harvard Educational Press SP 435 OP 453 DO 10.17763/haer.75.4.a263u5q535658h41 VO 75 IS 4 A1 CLAIR, RALF ST. YR 2005 UL http://harvardeducationalreview.org/content/75/4/435.abstract AB In this article, Ralf St. Clair makes the argument that induction—the process of applying research findings from one setting to another — is logically unsupported, irrespective of method or methodology, due to the existence of superunknowns. Superunknowns are defined as factors that cannot be anticipated, not because of instrumentation defects, but because of their nature. On this basis, St. Clair asserts that we cannot increase the credibility of educational research by trying ever more strenuously to create general laws. Instead, St. Clair argues for educational research to be viewed as a means to generate empirical heuristics for thought and inquiry, and for wider recognition of the central—and essential—role of human judgment, as exercised by practitioners and researchers, in the research endeavor.