The Development and Validation of the Epistemic Vice Scale

51 Pages Posted: 18 Feb 2021 Last revised: 14 May 2021

See all articles by Marco Meyer

Marco Meyer

University of York

Mark Alfano

Macquarie University

Boudewijn de Bruin

University of Groningen, Faculties of Philosophy, and Economics and Business

Date Written: January 14, 2021

Abstract

This paper presents two studies on the development and validation of a ten-item scale of epistemic vice and the relationship between epistemic vice and misinformation and fake news. Epistemic vices have been defined as character traits and other dispositions that interfere with acquiring, maintaining, and transmitting knowledge. Examples of epistemic vice are gullibility and indifference to knowledge. It has been hypothesized that epistemically vicious people are especially susceptible to misinformation and conspiracy theories. We conducted one exploratory and one confirmatory observational survey study on Amazon Mechanical Turk among people living in the United States (total N=1,737). We show that two psychological traits underlie epistemic vices: indifference to truth and rigidity. Indifference manifests itself in a lack of motivation to find the truth. Rigidity manifests itself in being insensitive to evidence. We develop a scale to measure epistemic vice with the subscales indifference and rigidity. The Epistemic Vice Scale is internally consistent; has good convergent, divergent, and discriminant validity; and is strongly associated with the endorsement of misinformation and conspiracy theories. Epistemic vice explains additional variance in the endorsement of misinformation and conspiracy theories over and above demographic and related psychological concepts and shows medium to large effect sizes across outcome measures. We demonstrate that epistemic vice differs from existing psychological constructs, and show that the scale can explain individual differences in dealing with misinformation and conspiracy theories. We conclude that epistemic vice might contribute to “postfactive” ways of thinking.

Keywords: epistemic vice, virtue epistemology, scale validation, misinformation, fake news

JEL Classification: epistemic vice, virtue epistemology, scale validation, misinformation, fake news

Suggested Citation

Meyer, Marco and Alfano, Mark and de Bruin, Boudewijn, The Development and Validation of the Epistemic Vice Scale (January 14, 2021). Available at SSRN: https://ssrn.com/abstract=3766052 or http://dx.doi.org/10.2139/ssrn.3766052

Marco Meyer (Contact Author)

University of York ( email )

Heslington
University of York
York, YO10 5DD
United Kingdom

Mark Alfano

Macquarie University ( email )

North Ryde
Sydney, New South Wales 2109
Australia

Boudewijn De Bruin

University of Groningen, Faculties of Philosophy, and Economics and Business ( email )

Nettelbosje 2
Groningen, 9747 AE
Netherlands

HOME PAGE: http://www.philos.rug.n/~debruin

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