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Comparative Study
. 2007 Jan;33(1):107-29.
doi: 10.1037/0278-7393.33.1.107.

A response-time approach to comparing generalized rational and take-the-best models of decision making

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Comparative Study

A response-time approach to comparing generalized rational and take-the-best models of decision making

F Bryan Bergert et al. J Exp Psychol Learn Mem Cogn. 2007 Jan.

Abstract

The authors develop and test generalized versions of take-the-best (TTB) and rational (RAT) models of multiattribute paired-comparison inference. The generalized models make allowances for subjective attribute weighting, probabilistic orders of attribute inspection, and noisy decision making. A key new test involves a response-time (RT) approach. TTB predicts that RT is determined solely by the expected time required to locate the 1st discriminating attribute, whereas RAT predicts that RT is determined by the difference in summed evidence between the 2 alternatives. Critical test pairs are used that partially decouple these 2 factors. Under conditions in which ideal observer TTB and RAT strategies yield equivalent decisions, both the RT results and the estimated attribute weights suggest that the vast majority of subjects adopted the generalized TTB strategy. The RT approach is also validated in an experimental condition in which use of a RAT strategy is essentially forced upon subjects.

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