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Tracking TruthKnowledge, Evidence, and Science$
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Sherrilyn Roush

Print publication date: 2005

Print ISBN-13: 9780199274734

Published to Oxford Scholarship Online: February 2006

DOI: 10.1093/0199274738.001.0001

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What is Evidence? Discrimination, Indication, and Leverage

What is Evidence? Discrimination, Indication, and Leverage

Chapter:
(p.149) 5 What is Evidence? Discrimination, Indication, and Leverage
Source:
Tracking Truth
Author(s):

Sherrilyn Roush (Contributor Webpage)

Publisher:
Oxford University Press
DOI:10.1093/0199274738.003.0005

This chapter explains the motivations behind a tracking view of what evidence is, and formulates such a view in terms of conditional probability. This view is a likelihood ratio confirmation theory, which is considered superior to approaches using other measures of confirmation. Beyond confirmational support, a new constraint is formulated to put a lower bound on the posterior probability of the hypothesis. It is shown that knowledge, on the new tracking view, has a sufficiently strong transitivity property to explain why better evidence makes one more likely to know when to conjoin the tracking view of evidence with the tracking view of knowledge.

Keywords:   evidence, confirmation, discrimination, indication, transitivity, probability, measure, likelihood ratio, deductive support

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