Hostname: page-component-77c89778f8-vsgnj Total loading time: 0 Render date: 2024-07-18T12:44:19.730Z Has data issue: false hasContentIssue false

A psychological point of view: Violations of rational rules as a diagnostic of mental processes

Published online by Cambridge University Press:  09 April 2001

Daniel Kahneman
Department of Psychology and Woodrow Wilson School of Public Affairs, Princeton University, Princeton, NJ 08544


The target article focuses exclusively on System 2 and on reasoning rationality: the ability to reach valid conclusions from available information, as in the Wason task. The decision-theoretic concept of coherence rationality requires beliefs to be consistent, even when they are assessed one at a time. Judgment heuristics belong to System 1, and help explain the incoherence of intuitive beliefs.

Open Peer Commentary
© 2000 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)