Document Detail


Probability matching in risky choice: The interplay of feedback and strategy availability.
MedLine Citation:
PMID:  23135749     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
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.
Authors:
Ben R Newell; Derek J Koehler; Greta James; Tim Rakow; Don van Ravenzwaaij
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-8
Journal Detail:
Title:  Memory & cognition     Volume:  -     ISSN:  1532-5946     ISO Abbreviation:  Mem Cognit     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0357443     Medline TA:  Mem Cognit     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
School of Psychology, University of New South Wales, Sydney, 2052, Australia, ben.newell@unsw.edu.au.
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