Accuracy Uncomposed: Against Calibrationism

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Abstract

Pettigrew offers new axiomatic constraints on legitimate measures of inaccuracy. His axiom called 'Decomposition' stipulates that legitimate measures of inaccuracy evaluate a credence function in part based on its level of calibration at a world. I argue that if calibration is valuable, as Pettigrew claims, then this fact is an explanandum for accuracy-first epistemologists, not an explanans, for three reasons. First, the intuitive case for the importance of calibration isn't as strong as Pettigrew believes. Second, calibration is a perniciously global property that both contravenes Pettigrew's own views about the nature of credence functions themselves and undercuts the achievements and ambitions of accuracy-first epistemology. Finally, Decomposition introduces a new kind of value compatible with but separate from accuracy-proper in violation of Pettigrew's alethic monism.

Original languageEnglish (US)
Pages (from-to)59-69
Number of pages11
JournalEpisteme
Volume14
Issue number1
DOIs
StatePublished - Mar 1 2017

ASJC Scopus subject areas

  • History and Philosophy of Science

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