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Less-is-more effects without the recognition heuristic

By Charles Philip Beaman, Philip Twitchell Smith, Caren Antoinette Frosch and Rachel Ann McCloy

Abstract

Inferences consistent with “recognition-based” decision-making may be drawn for various reasons other than recognition alone. We demonstrate that, for 2-alternative forced-choice decision tasks, less-is-more effects (reduced performance with additional learning) are not restricted to recognition-based inference but can also be seen in circumstances where inference is knowledge-based but item knowledge is limited. One reason why such effects may not be observed more widely is the dependence of the effect on specific values for the validity of recognition and knowledge cues. We show that both recognition and knowledge validity may vary as a function of the number of items recognized. The implications of these findings for the special nature of recognition information, and for the investigation of recognition-based inference, are discusse

Publisher: Society for Judgment and Decision Making
Year: 2010
OAI identifier: oai:centaur.reading.ac.uk:5759

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