IQ decline and Piaget: Does the rot start at the top?
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The study design cannot distinguish between such possibilities, which implies that the Flynn effect between two cohorts may differ with the age at which they are assessed.
“The study design cannot distinguish between such possibilities, which also implies that the Flynn effect between two cohorts may differ with the age at which they are assessed (see the discussion in ref. 19)”
From Flynn effect and its reversal are both environmentally caused (2018) · cites this paper as [19]
The observed secular trend may be limited to young people born in the same time and place as the study population, since previous studies suggest the secular trend varies across age and countries.
“but the observed secular trend may be limited to young people born in the same time and place as our study population since previous studies have suggested that the secular trend of intelligence test scores vary across age and countries [4, 36].”
From The secular trend of intelligence test scores: The Danish experience for young men born between 1940 and 2000 (2021) · cites this paper as [36]
Cites
Selection against variants in the genome associated with educational attainment
Kong, A., Frigge, M. L., Thorleifsson, G., Stefansson, H., Young, A. I., Zink, F., Jonsdottir, G. A., Okbay, A., Sulem, P., Masson, G., et al. (2017) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1612113114 · Cited by 168 · see citing works
Why is working memory capacity related to matrix reasoning tasks?
Harrison, T. L., Shipstead, Z., & Engle, R. W. (2015) · Memory & Cognition · doi:10.3758/s13421-014-0473-3 · Cited by 74 · see citing works
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Flynn effect and its reversal are both environmentally caused
Bratsberg, B., & Rogeberg, O. (2018) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1718793115 · Cited by 199 · see citing works
Hegelund, E. R., Teasdale, T. W., Okholm, G. T., Osler, M., Sørensen, T. I. A., Christensen, K., & Mortensen, E. L. (2021) · PLOS ONE · doi:10.1371/journal.pone.0261117 · Cited by 12 · see citing works
- Authors
- Flynn, J. R., & Shayer, M.
- Affiliations
- University of Otago (NZ)
- Corresponding author
- Flynn, James R.
- Venue
- Intelligence
- Publisher
- Elsevier BV
- Published
- 2018-01
- Volume
- 66
- Pages
- 112-121
- ISSN
- 0160-2896 (ISSN-L)
- OpenAlex
- W2771275734
- Cited by
- 56
- References
- 2
- Citations by year
- 2026: 4 · 2025: 1 · 2024: 5 · 2023: 5 · 2022: 6 · 2021: 9 · 2020: 11 · 2019: 5 · 2018: 10
- FWCI
- 8.61
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Intelligence (publishedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- Topics
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Cognitive Abilities and Testing
- Social Sciences › Sociology and Political Science › Intergenerational and Educational Inequality Studies
- Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Economic Growth and Productivity
- Keywords
- IQ decline, IQ gains, Piagetian tests, top scorer, cohort comparison, Nordic countries, South Korea
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