A meta-cognitive account for the impact of implausible suggestions on estimations

Abstract

We propose a model of why implausible numeric suggestions function as anchors and influence people’s estimates. In two experiments we tested the hypothesis that people’s confidence in their knowledge modulates their susceptibility to implausible suggestions. We found that higher confidence reduces the impact of implausible anchors. A third experiment showed that knowledge, defined as participants’ agreement on a value, weakly affects the impact of a suggestion. These results indicate that theoretical accounts for the impact of implausible suggestions on estimations should consider the role of meta-cognitive information.


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