Abstract
Decision behavior in yes-no and forced-choice decision tasks was examined, with the amount of information ( n) being varied. Subjects were to decide which of two hypothetical normal distributions had been used to generate the information. A power function was used to model a hypothetical misperception process, and a change in performance as a function of n was taken as an indication of misaggregation. Evidence for both hypothetical processes was found, but both task and subject differences were apparent in the extent to which each hypothesis was supported. The misaggregation process was the result of increased inconsistency in responding as n increased.
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