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ERIC Number: EJ880284
Record Type: Journal
Publication Date: 2010-Jul
Pages: 17
Abstractor: As Provided
Reference Count: 0
ISSN: ISSN-0749-596X
Category vs. Object Knowledge in Category-Based Induction
Murphy, Gregory L.; Ross, Brian H.
Journal of Memory and Language, v63 n1 p1-17 Jul 2010
In one form of category-based induction, people make predictions about unknown properties of objects. There is a tension between predictions made based on the object's specific features (e.g., objects above a certain size tend not to fly) and those made by reference to category-level knowledge (e.g., birds fly). Seven experiments with artificial categories investigated these two sources of induction by looking at whether people used information about correlated features "within" categories, suggesting that they focused on feature-feature relations rather than summary categorical information. The results showed that people relied heavily on such correlations, even when there was no reason to think that the correlations exist in the population. The results suggested that people's use of this strategy is largely unreflective, rather than strategically chosen. These findings have important implications for models of category-based induction, which generally ignore feature-feature relations. (Contains 1 table and 1 figure.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A