Citation

Newell BR, Koehler DJ, James G, Rakow T, van Ravenzwaaij D. Mem. Cognit. 2013; 41(3): 329-338.

Affiliation

School of Psychology, University of New South Wales, Sydney, 2052, Australia, ben.newell@unsw.edu.au.

Copyright

(Copyright © 2013, Psychonomic Society)

DOI

10.3758/s13421-012-0268-3

PMID

23135749

Abstract

Probability matching in sequential decision making is a striking violation of rational choice that has been observed in hundreds of experiments. Recent studies have demonstrated that matching persists even in described tasks in which all the information required for identifying a superior alternative strategy-maximizing-is present before the first choice is made. These studies have also indicated that maximizing increases when (1) the asymmetry in the availability of matching and maximizing strategies is reduced and (2) normatively irrelevant outcome feedback is provided. In the two experiments reported here, we examined the joint influences of these factors, revealing that strategy availability and outcome feedback operate on different time courses. Both behavioral and modeling results showed that while availability of the maximizing strategy increases the choice of maximizing early during the task, feedback appears to act more slowly to erode misconceptions about the task and to reinforce optimal responding. The results illuminate the interplay between "top-down" identification of choice strategies and "bottom-up" discovery of those strategies via feedback.

Language: en