Howard Sankey

The aim of this chapter is to explore the relationship between Kuhn’s views about science and scientific realism. I present an overview of key features of Kuhn’s model of scientific change. The model suggests a relativistic approach to the methods of science. I bring out a conflict between this relativistic approach and a realist approach to the norms of method. I next consider the question of progress and truth. Kuhn’s model is a problem-solving model that proceeds by way of puzzles and anomalies rather than progress toward truth. I explore Kuhn’s views about scientific progress in connection with scientific realist views about truth and progress. This leads to consideration of Kuhn’s views about the incommensurability of paradigms, as well as brief consideration of an anti-realist interpretation of his talk of world-change. I conclude by indicating that the scientific realist may endorse some aspects of Kuhn’s view.

In this paper, I explore the relationship between the subject and the object from the perspective of scientific realism. I first characterize the scientific realist position that I adopt. I then address the question of the nature of scientific knowledge from a realist point of view. Next I consider the question of how to locate the knowing subject within the context of scientific realism. After that I consider the place of mind in an objective world. I close with some general remarks on the topic.

Measurement is a special type of evaluation that is more exact than either opinion or estimation. In the social sciences, in particular, most evaluations are not measures, but rather mixtures of opinion and estimation. Over-measurement represents anchoring to evaluations which are not measures. For an over-measured characteristic, single measures are used when instead a portfolio of possible measures should be used. There are three implications. First, measurements of characteristics which depend on the over-measured characteristic are biased. Secondly, decisions which depend on the over-measured characteristic are biased. Thirdly, over-measurement biases the measurement of uncertainty.

¿La ciencia otorga conocimiento de la realidad? En este artículo ofrezco una respuesta positiva a esta pregunta. Rechazo la pretensión anti-realista según la cual somos incapaces de adquirir conocimiento de la realidad; al contrario, apoyo la visión realista que afirma que la ciencia produce conocimiento del mundo externo. Pero: ¿cuál mundo es ese? Algunos sostienen que la ciencia conduce a la superación de nuestra visión del mundo dada por el sentido común. El sentido común es la “metafísica de la edad de piedra” que debe rechazarse como la teoría falsa de nuestros primitivos ancestros. Contra tales eliminativistas acerca del sentido común, planteo que la ciencia conserva y explica la experiencia del mundo dada por el sentido común. Aunque la ciencia puede llevar a la superación de creencias profundamente arraigadas, el sentido común refleja un nivel de experiencia más básico y duradero. Las creencias del sentido común son creencias bien confirmadas que se justifican por su papel en la acción práctica exitosa de la vida diaria. El sentido común otorga una base sólida sobre la cual establecer el enfoque realista a la ciencia.

This paper presents a naturalistic response to the challenge of epistemic relativism. The case of the Azande poison oracle is employed as an example of an alternative epistemic norm which may be used to justify beliefs about everyday occurrences. While a distinction is made between scepticism and relativism, an argument in support of epistemic relativism is presented that is based on the sceptical problem of the criterion. A response to the resulting relativistic position is then provided on the basis of a particularist response to scepticism combined with a naturalistic approach to the warrant of epistemic norms. It is argued that it is possible to comparatively assess the ability of epistemic norms to lead to epistemic aims. As against the epistemic relativist, it is possible to provide an objective basis for the choice between alternative epistemic norms.

The paper discusses the version of entity realism presented by Ian Hacking in his book, Representing and Intervening. Hacking holds that an ontological form of scientific realism, entity realism, may be defended on the basis of experimental practices which involve the manipulation of unobservable entities. There is much to be said in favour of the entity realist position that Hacking defends, especially the pragmatist orientation of his approach to realism. But there are problems with the position. The paper explores two issues that reflect negatively on Hacking’s version of the entity realist position. The first issue relates to the role of description in fixing the reference of theoretical terms. The second issue relates to Hacking’s claim that the argument for entity realism based on experiment is a different kind of argument from the standard argument for scientific realism based on the success of science.

Cet article esquisse une réponse particulariste et naturaliste au relativisme épistémique. La réponse est basée sur une analyse spécifique de la source de relativisme épistémique. Selon cette analyse, le relativisme épistémique doit être considérée en lien proche avec le scepticisme pyrrhonien, car le relativisme est basée sur le problème du critère qui a été propose par les ces anciens sceptiques. L’article commence avec une caractérisation du relativisme épistémique. Puis il présente un argument pour le relativisme épistémique sur la base du problème du critère. La réponse au problème du critère proposée par Roderick Chisholm est ensuite considérée. La réponse de Chisholm est fondée sur un particularisme épistémique. Apres avoir présenté l’approche de Chisholm, l’article propose une réponse au relativisme épistémique qui combine le particularisme de Chisholm avec une approche naturaliste et fiabiliste aux questions épistémiques. Quelques remarques à propos du lien entre Chisholm et la réponse proposée au relativisme épistémique sont aussi offertes.

This paper reconsiders the challenge presented to scientific realism by the semantic incommensurability thesis. A twofold distinction is drawn between methodological and semantic incommensurability, and between semantic incommensurability due to variation of sense and due to discontinuity of reference. Only the latter presents a challenge to scientific realism. The realist may dispose of this challenge on the basis of a modified causal theory of reference, as argued in the author’s 1994 book, The incommensurability thesis. This referential response has been the subject of a charge of meta-incommensurability by Hoyningen-Huene et al., who argue that the realist’s referential response begs the question against anti-realist advocates of incommensurability. In reply, it is noted that a tu quoque rejoinder is available to the realist. It is also argued that the dialectical situation favours the scientific realist, since the anti-realist defence of incommensurability depends on an incoherent distinction between phenomenal world and world-in-itself. In light of such incoherence, and a strong commonsense presumption in favour of realism, the referential response to semantic incommensurability may be justifiably based on realism.

This volume of essays about Thomas Kuhn contains new work by key figures in the area of Kuhn-studies. The essays treat Kuhn primarily as a philosopher rather than historian of science. They analyze the background setting of Kuhn’s ideas, and cover such topics as his account of scientific practice, cognitive aspects of scientific reasoning and conceptual change, and Kuhn’s influence on feminist philosophy of science. While the volume is principally conceived as an introduction to Kuhn for the generalist, it contains much that will be of interest to specialists. The essays combine criticism with exposition. But the volume also has a prospective orientation. For it seeks to place Kuhn’s ideas within the frame of ongoing and future developments in the philosophy of science. The volume opens with an Introduction by the Editor, Thomas Nickles, and closes with a select bibliography of English-language literature relating to Kuhn.

This paper addresses the relationship between the history and philosophy of science by way of the issue of epistemic normativity. After brief discussion of the relationship between history and philosophy of science in Kuhn’s own thinking, the paper focuses on the implications of the history of science for epistemic normativity. There may be historical evidence for change of scientific methodology, which may seem to support a position of epistemic relativism. However, the fact that the methods of science undergo variation does not entail that epistemic justification varies with the methods employed by scientists. In order to arrive at the relativist conclusion, an epistemological argument is required that justification depends upon operative methods. This raises the question of epistemic normativity. Kuhn himself attempted to deal with this question on a number of occasions, but without success. Following brief discussion of Kuhn on this topic, the paper then turns to the treatment of epistemic normativity in the work of Lakatos, Laudan and Worrall. Lakatos and Laudan proposed that particular episodes from the history of science might be employed to adjudicate between alternative theories of method. Such episodes are selected on the basis of value judgements or pre-analytic intuitions, but such value judgements and intuitions are themselves problematic. Laudan later proposed the normative naturalist view that a rule of method is to be evaluated empirically on the basis of its reliability in conducing to a desired cognitive aim. Against this attempt to naturalize meta-methodology, Worrall argued that the normative force of the appeal to past reliability requires an a priori inductive principle. In my view, the problem of epistemic normativity is solved by combining the particularist focus on specific episodes in the history of science with the naturalistic account of the reliability of method.

The paper gives an overview of key themes of twentieth century philosophical treatment of the language of science, with special emphasis on the meaning variance of scientific terms and the comparison of alternative theories. These themes are dealt with via discussion of the topics of: (a) the logical positivist principle of verifiability and the problem of the meaning of theoretical terms, (b) the postpositivist thesis of semantic incommensurability, and (c) the scientific realist response to incommensurability based on the causal theory of reference.

This paper explores the relationship between scepticism and epistemic relativism in the context of recent history and philosophy of science. More specifically, it seeks to show that significant treatments of epistemic relativism by influential figures in the history and philosophy of science draw upon the Pyrrhonian problem of the criterion. The paper begins with a presentation of the problem of the criterion as it occurs in the work of Sextus Empiricus. It is then shown that significant treatments of epistemic relativism in recent history and philosophy of science (critical rationalism, historical philosophy of science and the strong programme) draw upon the problem of the criterion. It is briefly suggested that a particularist response to the problem of the criterion may be put to good use against epistemic relativism.

Some think that issues to do with scientific method are last century's stale debate; Popper was an advocate of methodology, but Kuhn, Feyerabend, and others are alleged to have brought the debate about its status to an end. The papers in this volume show that issues in methodology are still very much alive. Some of the papers reinvestigate issues in the debate over methodology, while others set out new ways in which the debate has developed in the last decade. The book will be of interest to philosophers and scientists alike in the reassessment it provides of earlier debates about method and current directions of research.

This paper describes the position of scientific realism and presents the basic lines of argument for the position. Simply put, scientific realism is the view that the aim of science is knowledge of the truth about observable and unobservable aspects of a mind-independent, objective reality. Scientific realism is supported by several distinct lines of argument. It derives from a non-anthropocentric conception of our place in the natural world, and it is grounded in the epistemology and metaphysics of common sense. Further, the success of science entitles us to infer both the approximate truth of mature scientific theories and the truth-conduciveness of the methods of science.