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No evidence for rule-based processing in the inverse base-rate effect
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Lamberts, Koen and Kent, Christopher (2007) No evidence for rule-based processing in the inverse base-rate effect. MEMORY & COGNITION, 35 (8). pp. 2097-2105. ISSN 0090-502X.
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Abstract
The inverse base-rate effect in categorization (Medin & Edelson, 1988) arises when participants assign an ambiguous stimulus to a category that occurred less frequently than an alternative category, against the principles of Bayesian decision making. In the experiment reported in this article, rule-based and attention-shiffing accounts of the inverse base-rate effect were evaluated. Participants completed a categorization task, known to produce the inverse base-rate effect, under standard conditions, under time pressure, and with a secondary task load. The inverse base-rate effect persisted under severe time pressure and under secondary task load. The results provided no evidence for the role of rule-based processes in producing the inverse base-rate effect. The data from the experiment are compatible with an attention-shifting account.
Item Type: | Journal Article | ||||
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Subjects: | B Philosophy. Psychology. Religion > BF Psychology | ||||
Journal or Publication Title: | MEMORY & COGNITION | ||||
Publisher: | PSYCHONOMIC SOC INC | ||||
ISSN: | 0090-502X | ||||
Official Date: | December 2007 | ||||
Dates: |
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Volume: | 35 | ||||
Number: | 8 | ||||
Number of Pages: | 9 | ||||
Page Range: | pp. 2097-2105 | ||||
Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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