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The contributions to Testing Scientific Theories are unified by an interest in responding to criticisms directed by Glymour against existing models of confirmation–-chiefly H-D and Bayesian schemas–-and in assessing and correcting the “bootstrap“ model of confirmation that he proposed as an alternative in Theory and Evidence. As such, they provide a representative sample of objections to Glymour's model and of the wide range of new initiatives in thinking about scientific confirmation that it has influenced. The effect is a sense of (...) |
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Philosophers such as Goodman, Scheffler and Glymour aim to answer the Paradox of the Ravens by distinguishing between confirmation simpliciter and selective confirmation. In the latter concept, the evidence both supports a hypothesis and undermines one of its "rivals". In this article, I argue that while selective confirmation does seem to be an important scientific notion, no attempt to formalise it thus far has managed to solve the Paradox of the Ravens. |
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An amended bootstrapping can avoid Christensen's counterexamples. Earman and Edidin argue that Christensen's examples to bootstrapping rely on his failure to analyze background knowledge. I add an additional condition to bootstrapping that is motivated by Glymour's remarks on variety of evidence. I argue that it avoids the problems that the examples raise. I defend the modification against the charge that it is holistic, and that it collapses into Bayesianism. |
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This article discusses the concept of evidential reasoning in the context of qualitative research methods in the social sciences. A conceptualization of qualitative evidential reasoning is proposed... |
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Derivational robustness may increase the degree to which various pieces of evidence indirectly confirm a robust result. There are two ways in which this increase may come about. First, if one can show that a result is robust, and that the various individual models used to derive it also have other confirmed results, these other results may indirectly confirm the robust result. Confirmation derives from the fact that data not known to bear on a result are shown to be relevant (...) No categories |
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Clark Glymour defined bootstrap-confirmation as a three-place relation: “Evidence E bootstrap confirms hypothesis H with respect to theory T.“ By an ingenious choice of examples, David Christensen has shown that Glymour's definition is satisfied in a class of cases in which confirmation seems to be highly counterintuitive. Responding to Christensen's criticism, Glymour revised his 1980 definition of bootstrap confirmation, by introducing an additional condition that rules out Christensen's counterexamples. |
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Christensen [Philosophy of Science, 50: 471–481, 1983] and [Philosophy of Science, 57: 644–662, 1990] provides two sets of counter-examples to the versions of bootstrap confirmation for standard first-order languages presented in Glymour [Theory and Evidence, Princeton University Press, Princeton, 1980] and [Philosophy of Science, 50: 626–629, 1983]. This paper responds to the counter-examples of Christensen [Philosophy of Science, 50: 471–481, 1983] by utilizing a new notion of content introduced in Gemes [Journal of Philosophical Logic, 26, 449–476, 1997]. It is claimed (...) |
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Recent work on the logical theory of confirmation has centered on accounts of the confirmation of hypotheses relative to auxiliary assumptions or background theory. Whether such relative confirmation actually increases the credibility of the (relatively) confirmed hypothesis will depend in various ways on the epistemic status of the auxiliaries involved. Most obviously, if the auxiliaries are not themselves credible, confirmation relative to them will not increase the credibility of the hypothesis thus confirmed. A complete theory of confirmation must thus combine (...) |
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This paper investigates the adequacy of evidential relevance relations proposed by Glymour and others. These accounts incorporate, as a necessary condition, what I call the Positive Instance Condition (PIC): the evidence statement and auxiliary assumptions entail a "positive instance" of the hypothesis. I argue that any account which incorporates PIC as a necessary condition while allowing "bootstrap testing" is doomed to fail. A nonbootstrapping evidential relevance relation of similar form is proposed, and it is argued that, in addition to avoiding (...) |
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The main appeal of the currently popular "bootstrap" account of confirmation developed by Clark Glymour is that it seems to provide an account of evidential relevance. This account has, however, had severe problems; and Glymour has revised his original account in an attempt to solve them. I argue that this attempt fails completely, and that any similar modifications must also fail. If the problems can be solved, it will only be by radical revisions which involve jettisoning bootstrapping's basic approach to (...) |
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Noam Chomsky supone, de forma equivocada, que en la ciencia hay contrastaciones cruciales. La confirmación de las hipótesis de una teoría x no nos habilita para desestimar la teoría z, incompatible con x. Se sugiere, como alternativa, un “principio de complementariedad en lingüística”, en virtud del cual podría aceptarse que alguna teoría lingüística zes científica si ésta caracteriza ciertos fenómenos lingüísticos aun cuando resulte incompatible con la de Chomsky. No categories  |
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The paper applies confirmation theory to a famous statement of economics, the law of demand, which says that ceteris paribus, prices and quantities demanded change in opposite directions. Today's economists do not accept the law unless definite restrictions hold, and have shown little interest in deciding whether or not these restrictions were satisfied empirically. However, Hildenbrand (1994) has provided a new derivation of the law of aggregate demand and used this theoretical advance to devise a test that may be the (...) |
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