No evidence for rule-based processing in the inverse base-rate effect
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 0090-502XFull text not available from this repository.
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|
|Subjects:||B Philosophy. Psychology. Religion > BF Psychology|
|Journal or Publication Title:||MEMORY & COGNITION|
|Publisher:||PSYCHONOMIC SOC INC|
|Official Date:||December 2007|
|Number of Pages:||9|
|Page Range:||pp. 2097-2105|
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