Context effects produced by question orders reveal quantum nature of human judgments
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The hypothesis that human reasoning obeys the laws of quantum rather than classical probability has been used in recent years to explain a variety of seemingly "irrational" judgment and decision-making findings. This article provides independent evidence for this hypothesis based on an a priori prediction, called the quantum question (QQ) equality, concerning the effect of asking attitude questions successively in different orders. We empirically evaluated the predicted QQ equality using 70 national representative surveys and two laboratory experiments that manipulated question orders. Each national study contained 651-3,006 participants. The results provided strong support for the predicted QQ equality. These findings suggest that quantum probability theory, initially invented to explain noncommutativity of measurements in physics, provides a simple account for a surprising regularity regarding measurement order effects in social and behavioral science.
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There is a substantial body of behavioral evidence that human cognition is essentially quantum in nature.
“Aside from this direct biophysical evidence, we also have a substantial body of behavioral evidence that human cognition is essentially quantum in nature (Wang et al. 2014, Pothos and Busemeyer 2022).”
From A quantum microtubule substrate of consciousness is experimentally supported and solves the binding and epiphenomenalism problems (2025) · cites this paper as Wang et al. 2014
The Discussion describes an accumulating body of behavioral findings that quantum theory can explain, and the paper reports strong support for a quantum-probability prediction in surveys and experiments. But it does not establish that cognition is essentially quantum in a physical sense: the Discussion says a classical brain could produce behavior following quantum principles and that it is too early to determine whether quantum physics plays a significant role in mental processes. (LLM, conf=0.88)
Experimental — accuracy not yet measuredThe quantum cognition framework has generated novel, nontrivial quantitative predictions borne out by robust experimental evidence, particularly question order effects.
“The quantum cognition framework has also generated novel, nontrivial quantitative predictions borne out by robust experimental evidence, particularly with regard to question order effects in which people give different answers depending on the order in which pairs of questions are posed (Wang et al. 2014, Pothos and Busemeyer 2022).”
From A quantum microtubule substrate of consciousness is experimentally supported and solves the binding and epiphenomenalism problems (2025) · cites this paper as Wang et al. 2014
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- Authors
- Wang, Z., Solloway, T., Shiffrin, R. M., & Busemeyer, J. R.
- Affiliations
- The Ohio State University (US)
- Indiana University Bloomington (US)
- Venue
- Proceedings of the National Academy of Sciences
- Publisher
- National Academy of Sciences
- Published
- 2014-06-16
- Volume
- 111
- Issue
- 26
- Pages
- 9431-9436
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- PMC
- PMC4084470
- OpenAlex
- W2057021283
- Cited by
- 289
- References
- 28
- Citations by year
- 2026: 39 · 2025: 29 · 2024: 15 · 2023: 23 · 2022: 25 · 2021: 19 · 2020: 23 · 2019: 23 · 2018: 18 · 2017: 26 · 2016: 26 · 2015: 20 · 2014: 3
- FWCI
- 22.76
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Proceedings of the National Academy of Sciences (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Social Sciences › Decision Sciences › General Decision Sciences › Decision-Making and Behavioral Economics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Applications
- Social Sciences › Decision Sciences › Management Science and Operations Research › Psychometric Methodologies and Testing
- Keywords
- quantum cognition, question order effects, attitude measurement, quantum probability, non-commutativity, judgment and decision making
- MeSH terms
- Attitude, Humans, Judgment, Models, Psychological, Probability Theory, Surveys and Questionnaires
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