Cited by 65Decision-Making and Behavioral EconomicsCategorization, perception, and languageBayesian Modeling and Causal Inference

Linda is not a bearded lady: configural weighting and adding as the cause of extension errors

Nilsson, Håkan, Winman, Anders, Juslin, Peter, Hansson, Göran·2009·Journal of Experimental Psychology General

Abstract

This article explores the configural weighted average (CWA) hypothesis suggesting that extension biases, like conjunction and disjunction errors, occur because people estimate compound probabilities by taking a CWA of the constituent probabilities. The hypothesis suggests a process consistent with well-known cognitive constraints, which nonetheless achieves high robustness and bounded rationality in noisy real-life environments. Predictions by the CWA hypothesis are that in error-free data, conjunction and disjunction errors should be the rule rather than the exception when pairs of statements are randomly sampled from an environment, the rate of extension errors should increase when noise in data is decreased, and that adding a likely component should increase the probability of a conjunction. Four experiments generally verify the predictions by the hypothesis, demonstrating that extension errors are frequent also when tasks are selected according to representative design.

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Crossref · 10.1037/a0017351

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  • In these cases, participants are left to combine non-normalized sampled probability estimates for each hypothesis manually, and perhaps choose just one or combine them inappropriately.

    “participants are left to combine the non-normalized sampled probability estimates for each hypothesis 'manually', and perhaps choose just one of the probabilities or perhaps combine them inappropriately [52][53][54].”

    From Bayesian Brains without Probabilities (2016) · cites this paper as [54]

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Authors
Nilsson, H., Winman, A., Juslin, P., & Hansson, G.
Affiliations
Uppsala University (SE)
Venue
Journal of Experimental Psychology General
Published
2009
Volume
138
Issue
4
Pages
517-534
ISSN
  • 0096-3445 (ISSN-L)
  • 1939-2222
OpenAlex
W2015527652
Cited by
64
References
86
Citations by year
2025: 4 · 2024: 2 · 2023: 6 · 2022: 2 · 2021: 5 · 2020: 3 · 2019: 4 · 2018: 2 · 2017: 5 · 2016: 6 · 2015: 7 · 2014: 5 · 2013: 5 · 2012: 2
FWCI
1.42
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Experimental Psychology General (publishedVersion)
  • PubMed (publishedVersion)
Funders
Swedish Research Council
Topics
  • Social Sciences › Decision Sciences › General Decision Sciences › Decision-Making and Behavioral Economics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Categorization, perception, and language
  • Physical Sciences › Computer Science › Artificial Intelligence › Bayesian Modeling and Causal Inference
Keywords
conjunction errors, Linda problem, bounded rationality, noisy data, representative design, probabilistic reasoning
MeSH terms
Adult, Cognition, Female, Humans, Judgment, Male, Probability, Psychological Theory, Social Behavior, Students, Task Performance and Analysis, Young Adult

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