Implicit and explicit processes in a hypothesis testing task

doi:10.1348/000712602162436

Implicit and explicit processes in a hypothesis testing task

2010-12-24

22

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AI

J

Jonathan St. B. T. Evans *

DOI：10.1348/000712602162436

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Abstract

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We present the results of two experiments investigating the factors that determine responding on the pseudo-diagnosticity task. In Expt I we manipulated people's beliefs about the degree to which an initial piece of evidence supported a focal hypothesis and found decreased pseudo-diagnostic (PD) responding when the evidence offered low support for the focal hypothesis. In Expt 2 we manipulated the instructions given to participants. We found that instructions to select evidence to help decide between the focal and the complementary hypotheses produced fewer PD responses than both instructions to decide whether the focal hypothesis was the case and instructions to decide whether its complement was the case. The results are interpreted within the framework of recent dual process theories of reasoning.

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Implicit and explicit processes in a hypothesis testing task

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