A diffusion model analysis of belief bias: Different cognitive mechanisms explain how cogni- tive abilities and thinking styles contribute to conflict resolution in reasoning Anna-Lena Schuberta, Mário B. Ferreirab, André Matac, & Ben Riemenschneiderd aInstitute of Psychology, Heidelberg University, Heidelberg, Germany, E-mail: anna-
[email protected] bCICPSI, Faculdade de Psicologia, Universidade de Lisboa, Portugal, E-mail: mferreira@psi- cologia.ulisboa.pt cCICPSI, Faculdade de Psicologia, Universidade de Lisboa, Portugal, E-mail: aomata@psico- logia.ulisboa.pt dInstitute of Psychology, Heidelberg University, Heidelberg, Germany, E-mail: riemenschnei-
[email protected] Word count: 17,116 words Author Note Correspondence concerning this article should be addressed to Anna-Lena Schubert, Institute of Psychology, Heidelberg University, Hauptstrasse 47-51, D-69117 Heidelberg, Germany, Phone: +49 (0) 6221-547354, Fax: +49 (0) 6221-547325, E-mail: anna-lena.schubert@psy- chologie.uni-heidelberg.de. The authors thank Joana Reis for her help in setting up the experi- ment, and Adrian P. Banks and Christopher Hope for sharing their experimental material. THE ROLE OF COGNITIVE ABILITIES AND THINKING STYLES IN REASONING 2 Abstract Recent results have challenged the widespread assumption of dual process models of belief bias that sound reasoning relies on slow, careful reflection, whereas biased reasoning is based on fast intuition. Instead, parallel process models of reasoning suggest that rule- and belief- based problem features are processed in parallel and that reasoning problems that elicit a con- flict between rule- and belief-based problem features may also elicit more than one Type 1 re- sponse. This has important implications for individual-differences research on reasoning, be- cause rule-based responses by certain individuals may reflect that these individuals were ei- ther more likely to give a rule-based default response or that they successfully inhibited and overrode a belief-based default response.