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Optimism where there is none: Asymmetric belief updating observed with valence-neutral life events

Burton, J; Harris, A; Shah, P; Hahn, U; (2022) Optimism where there is none: Asymmetric belief updating observed with valence-neutral life events. Cognition , 218 , Article 104939. 10.1016/j.cognition.2021.104939. Green open access

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Abstract

How people update their beliefs when faced with new information is integral to everyday life. A sizeable body of literature suggests that people's belief updating is optimistically biased, such that their beliefs are updated more in response to good news than bad news. However, recent research demonstrates that findings previously interpreted as evidence of optimistic belief updating may be the result of flaws in experimental design, rather than motivated reasoning. In light of this controversy, we conduct three pre-registered variations of the standard belief updating paradigm (combined N = 300) in which we test for asymmetric belief updating with neutral, non-valenced stimuli using analytic approaches found in previous research. We find evidence of seemingly biased belief updating with neutral stimuli — results that cannot be attributed to a motivational, valence-based, optimism account — and further show that there is uninterpretable variability across samples and analytic techniques. Jointly, these results serve to highlight the methodological flaws in current optimistic belief updating research.

Type: Article
Title: Optimism where there is none: Asymmetric belief updating observed with valence-neutral life events
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.cognition.2021.104939
Publisher version: https://doi.org/10.1016/j.cognition.2021.104939
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: belief updating, optimism, statistical artefact, rationality
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Experimental Psychology
URI: https://discovery.ucl.ac.uk/id/eprint/10136229
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