Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/319278 
Year of Publication: 
2025
Citation: 
[Journal:] Journal of Behavioral Decision Making [ISSN:] 1099-0771 [Volume:] 38 [Issue:] 1 [Article No.:] e70010 [Publisher:] Wiley [Year:] 2025
Abstract: 
ABSTRACT Ratios are an instrumental component of the communication of probabilities such as COVID incidence rates, side effects of medical drugs, or political decision‐making; hence, they are a critical component of an individual's statistical decision‐making. Research on the ratio bias has shown inconsistent results based on six major shortcomings which we surmount by replicating an identical experiment with students in Germany, Turkey, and Italy, with a physical , textual, and graphical depiction, and accounting for different levels of exposure to probabilities. In six studies ( N  = 1338), we show that lower exposure to probabilities leads to significantly more ratio bias–conform choices. The results also suggest that higher levels of statistical numeracy and risk literacy reduce ratio bias–conform choices. Our contribution helps to better understand the ratio bias concerning different populations and highlights different baselines for ratio bias–conform choices among subgroups in the population.
Subjects: 
decision‐making
intercultural
judgement
probability
probability communication
ratio bias
statistical decision‐making
statistics
Persistent Identifier of the first edition: 
Creative Commons License: 
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Document Type: 
Article
Document Version: 
Published Version
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