Behavioral and Brain Sciences

Open Peer Commentary

Dual-processing explains base-rate neglect, but which dual-process theory and how?

Jonathan St. B. T. Evansa1 and Shira Elqayama2

a1 Centre for Thinking and Language, School of Psychology, University of Plymouth, Plymouth PL4 8AA, United Kingdom

a2 School of Applied Social Sciences, Faculty of Health and Life Sciences, De Montfort University, Leicester LE1 9BH, United Kingdom.


We agree that current evolutionary accounts of base-rate neglect are unparsimonious, but we dispute the authors' account of the effect in terms of parallel associative and rule-based processes. We also question their assumption that cueing of nested set relations facilitates performance due to recruitment of explicit reasoning processes. In our account, such reasoning is always involved, but usually unsuccessful.

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