Relations between premise similarity and inductive strength |
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Authors: | Email author" target="_blank">Evan?HeitEmail author Aidan?Feeney |
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Institution: | (1) Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN 47405, USA |
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Abstract: | According to the diversity principle, diverse evidence is strong evidence. There has been considerable evidence that people
respect this principle in inductive reasoning. However, exceptions may be particularly informative. Medin, Coley, Storms,
and Hayes (2003) introduced a relevance theory of inductive reasoning and used this theory to predict exceptions, including
the nondiversity-by-propertyreinforcement effect. A new experiment in which this phenomenon was investigated is reported here.
Subjects made inductive strength judgments and similarity judgments for stimuli from Medin et al. (2003). The inductive strength
judgments showed the same pattern as that in Medin et al. (2003); however, the similarity judgments suggested that the pattern
should be interpreted as a diversity effect, rather than as a nondiversity effect. It is concluded that the evidence regarding
the predicted nondiversity-byproperty-reinforcement effect does not give distinctive support for relevance theory, although
this theory does address other results. |
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Keywords: | |
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