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Psychological Science 2003

Models of Consistency

Paolo Legrenzi1; Vittorio Girotto2; P. N. Johnson‐Laird3

1 University of Architecture, Venice, Italy · 2 Aix-Marseille Université · 3 Princeton University

Abstract

This article presents a theory of how individuals detect whether descriptions of an entity are consistent or inconsistent. The theory postulates that individuals try to construct a mental model of the entity in which all the propositions are true. If they succeed, they infer that the description is consistent; otherwise, they infer that it is inconsistent. We report three experiments that corroborated the theory. Experiment 1 confirmed that evaluating consistency is easier when an initial model suffices than when reasoners have to find an alternative model. Experiment 2 established the occurrence of illusion, inferences about the properties of entities. Experiment 3 showed that the illusions correspond to mental models of the assertions, even when these models are wrong because they fail to represent what is false.

DOI
10.1111/1467-9280.t01-1-01431
Sources
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