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Task representations, strategy variability, and base-rate neglect

Lovett, MC and Schunn, CD (1999) Task representations, strategy variability, and base-rate neglect. Journal of Experimental Psychology: General, 128 (2). 107 - 130. ISSN 0096-3445

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The authors present a new model called RCCL (pronounced "ReCyCLe"; Represent the task, Construct a set of action strategies consistent with the task representation, Choose from among those strategies according to their success rates, and Learn new success rates for the strategies based on experience). The model explains the different ways in which people combine base-rate and case-specific cues to produce choice. It also makes additional predictions regarding variability in people's choices over time. Experiment 1 tested 58 college-age students in a problem-solving task and showed that task representations can be influenced by feedback from the environment, producing changes in base rate and cue sensitivity. Experiment 2 tested 80 college-age students in a delayed match-to-sample task and showed that variations in the format of a task can lead to different representations, which in turn produce much different base-rate and cue sensitivities. Moreover, both experiments showed systematic variability in choice over time in ways predicted by the model.


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Item Type: Article
Status: Published
CreatorsEmailPitt UsernameORCID
Lovett, MC
Schunn, CDschunn@pitt.eduSCHUNN0000-0003-3589-297X
Centers: Other Centers, Institutes, Offices, or Units > Learning Research & Development Center
Date: 1 January 1999
Date Type: Publication
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Journal or Publication Title: Journal of Experimental Psychology: General
Volume: 128
Number: 2
Page Range: 107 - 130
DOI or Unique Handle: 10.1037/0096-3445.128.2.107
Institution: University of Pittsburgh
Schools and Programs: Dietrich School of Arts and Sciences > Psychology
Refereed: Yes
ISSN: 0096-3445
Date Deposited: 20 Aug 2014 19:57
Last Modified: 02 Feb 2019 15:56


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