Uljana Feest received a master's degree in psychology from the University of Frankfurt (Germany) in 1994, and a PhD in history and philosophy of science from the University of Pittsburgh in 2003. She was a research scholar at the Max Planck Institute for the History of Science in Berlin from 2003–2006, and is currently an assistant professor at the Institute of Philosophy, Philosophy of Science, and History of Science and Technology at the Technical University, Berlin. Her interests fall into the history and philosophy of psychology and the human sciences as well as the history of the philosophy of science. She is currently engaged in two research projects, one dealing with the epistemology of experimentation in psychology, the other with the relationship between psychology and philosophy in the late 19th and early 20th century.
Eva Hedfors is an MD experienced in both clinical medicine and medical research with a PhD in immunology at the Karolinska Institute, Stockholm, Sweden. With an additional background in philosophy and in the history of ideas, she is at present working in the field of history and theory of science. Her main focus is on the differing conceptions of science within the humanities and the sciences in historical perspective. This paper is part of her recent PhD thesis in Philosophy at the Department of Philosophy and the History of Technology, Royal Institute of Technology, Sweden. Correspondence to: Eva Hedfors, Division of Philosophy, Royal Institute of Technology, Teknikringen 78 B, S-100 44, Stockholm, E-mail: firstname.lastname@example.org
Robert Farrell is a tutor/lecturer, and research assistant to Professor C.A Hooker, at the University of Newcastle, Australia. His current research revolves [End Page 128] around the explication of Self-Directed Anticipative Learning to science, with particular emphasis upon the relationship between error and methodology. He is the author of "Feyerabend and Scientific Values: Tightrope-Walking Rationality" (2003)
Cliff Hooker, PhD (physics), PhD (philosophy), FAHA, is professor emeritus of philosophy at the University of Newcastle. His current research practice extends from foundations of complex systems and bio-cognitive organization to public policy, reason and ethics, held together by their common bases in complex adaptive systems organization. He has published 20 books and 1001 research papers across these topics (1 foundations of physics).
Michael Heidelberger holds the chair for Logic and Philosophy of Science at the University of Tübingen. At the centre of his interest are topics related to causality and probability, measurement and experiment. He specialises in the history of the philosophy of science, mainly of the late nineteenth and early twentieth century and focuses on philosophy and history of psychology and related subjects in this period. He is the author of Nature from Within: Gustav Theodor Fechner's Psychophysical Worldview (University of Pittsburgh Press 2004) and of many articles on a wide variety of subjects. Together with Gregor Schiemann, he is currently preparing an edited volume on the notion of hypothesis in science.