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The Rationality Quotient – Toward a Test of Rational Thinking - MIT Press Scholarship Online
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The Rationality Quotient: Toward a Test of Rational Thinking

Keith E. Stanovich, Richard F. West, and Maggie E. Toplak


This book shows that rational thinking, like intelligence, is a measurable cognitive competence. Drawing on theoretical work and empirical research from the last two decades, The Rationality Quotient presents the first prototype for an assessment of rational thinking analogous to an IQ test: the CART (Comprehensive Assessment of Rational Thinking). The book describes the theoretical underpinnings of the CART, distinguishing the algorithmic mind from the reflective mind. It discusses the logic of the tasks used to measure cognitive biases. The book presents a unique typology of thinking errors. ... More

Keywords: rational thinking, assessment, cognitive biases, typology of thinking errors, miserly processing, CART components, probabilistic reasoning, scientific reasoning

Bibliographic Information

Print publication date: 2016 Print ISBN-13: 9780262034845
Published to MIT Press Scholarship Online: May 2017 DOI:10.7551/mitpress/9780262034845.001.0001


Affiliations are at time of print publication.

Keith E. Stanovich, author
University of Toronto (emeritus)

Richard F. West, author
James Madison University (emeritus)

Maggie E. Toplak, author
York University

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