Behavioral and Brain Sciences
- Behavioral and Brain Sciences / Volume 30 / Issue 03 / June 2007, pp 268-269
- Copyright © Cambridge University Press 2007
- DOI: http://dx.doi.org/10.1017/S0140525X0700177X (About DOI), Published online: 29 October 2007
Open Peer Commentary
Frequency formats are a small part of the base rate story
Dale Griffina1, Derek J. Koehlera2 and Lyle Brennera3
a1 Sauder School of Business, University of British Columbia, Vancouver, BC V6T 1Z2, Canada dale.griffin@sauder.ubc.ca
a2 Department of Psychology, University of Waterloo, Waterloo, ON N2L 3G1, Canada dkoehler@watarts.uwaterloo.ca
a3 Warrington College of Business, University of Florida, Gainesville, FL 32611. lbrenner@ufl.edu
Abstract
Manipulations that draw attention to extensional or set-based considerations are neither sufficient nor necessary for enhanced use of base rates in intuitive judgments. Frequency formats are only one part of the puzzle of base-rate use and neglect. The conditions under which these and other manipulations promote base-rate use may be more parsimoniously organized under the broader notion of case-based judgment.
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