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A dual-process diffusion model


Alós-Ferrer, Carlos (2018). A dual-process diffusion model. Journal of Behavioral Decision Making, 31(2):203-218.

Abstract

This paper presents a simple formal analytical model delivering qualitative predictions for response times in binary‐choice experiments. It combines a dual‐process/multi‐strategy approach with the standard diffusion model, modeling a utility decision process and a heuristic decision process as diffusion processes of evidence accumulation. For
experiments with objective alternatives (including many tasks in judgment and decision making), the model predicts that errors will be quicker than correct responses in case of process conflict and slower in case of alignment, capturing a well‐documented asymmetry regarding slow or fast errors. Further, the model also predicts that correct responses are slower in case of conflict than in case of alignment, capturing the well‐known Stroop effect. The model is also extended to cover experiments with subjective alternative evaluations, that is, preferential choice. In this case, results depend on whether trials are hard or easy, that is, on whether the heuristic can be interpreted as relatively automatic or not. Copyright © 2016 John Wiley & Sons, Ltd.

Abstract

This paper presents a simple formal analytical model delivering qualitative predictions for response times in binary‐choice experiments. It combines a dual‐process/multi‐strategy approach with the standard diffusion model, modeling a utility decision process and a heuristic decision process as diffusion processes of evidence accumulation. For
experiments with objective alternatives (including many tasks in judgment and decision making), the model predicts that errors will be quicker than correct responses in case of process conflict and slower in case of alignment, capturing a well‐documented asymmetry regarding slow or fast errors. Further, the model also predicts that correct responses are slower in case of conflict than in case of alignment, capturing the well‐known Stroop effect. The model is also extended to cover experiments with subjective alternative evaluations, that is, preferential choice. In this case, results depend on whether trials are hard or easy, that is, on whether the heuristic can be interpreted as relatively automatic or not. Copyright © 2016 John Wiley & Sons, Ltd.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:03 Faculty of Economics > Department of Economics
Dewey Decimal Classification:330 Economics
Scopus Subject Areas:Social Sciences & Humanities > General Decision Sciences
Social Sciences & Humanities > Arts and Humanities (miscellaneous)
Social Sciences & Humanities > Applied Psychology
Social Sciences & Humanities > Sociology and Political Science
Social Sciences & Humanities > Strategy and Management
Uncontrolled Keywords:Dual processes, diffusion model, response times
Language:English
Date:April 2018
Deposited On:05 Jun 2018 09:26
Last Modified:08 Apr 2020 23:41
Publisher:Wiley-Blackwell Publishing, Inc.
ISSN:0894-3257
OA Status:Green
Publisher DOI:https://doi.org/10.1002/bdm.1960
Official URL:https://onlinelibrary.wiley.com/doi/abs/10.1002/bdm.1960

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