General mental ability in South Asians: Data from three Roma (Gypsy) communities in Serbia
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Rushton's item-level Raven's Progressive Matrices studies generally found group differences were greater on items with the highest item-total correlations, confirming Spearman's hypothesis.
“It was generally found that group differences were greater on those items of the RPM with the highest item-total correlations, which are the best measures of general factor of intelligence, which counts as a confirmation of Spearman's hypothesis.”
From Spearman’s Hypothesis Tested on Black Adults: A Meta-Analysis (2016) · cites this paper as [12]
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Evolutionary Personality Psychology
Buss, D. M. (1991) · Annual Review of Psychology · doi:10.1146/annurev.ps.42.020191.002331 · Cited by 930 · see citing works
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Rushton, J. P., & Jensen, A. R. (2010) · The Open Psychology Journal · doi:10.2174/1874350101003010009 · Cited by 48 · see citing works
“These correlated with the differences in pass rates between the twins and 94 Roma (Gypsies) living in Serbia (r = .32; P < .05).”
ResultInfluentialSelf-citationSpearman’s Hypothesis Tested on Black Adults: A Meta-Analysis
Te Nijenhuis, J., & Van den Hoek, M. (2016) · Journal of Intelligence · doi:10.3390/jintelligence4020006 · Cited by 18 · see citing works
Wicherts, J. M. (2017) · Intelligence · doi:10.1016/j.intell.2016.11.002 · Cited by 17 · see citing works
Factors Related to Mean Score Group Differences on Cognitive Ability Tests: A Systematic Review
Cuppello, S., Zibarras, L. D., & Corr, P. J. (2025) · Trends in Psychology · doi:10.1007/s43076-025-00504-5
- Authors
- Rushton, J. P., Čvorović, J., & Bons, T. A.
- Affiliations
- Western University (CA)
- Serbian Academy of Sciences and Arts (RS)
- Corresponding author
- Rushton, J. Philippe
- ORCID
- Čvorović, Jelena
- Venue
- Intelligence
- Publisher
- Elsevier BV
- Published
- 2007-01
- Volume
- 35
- Issue
- 1
- Pages
- 1-12
- ISSN
- 0160-2896 (ISSN-L)
- OpenAlex
- W2100716030
- Cited by
- 55
- References
- 1
- Citations by year
- 2026: 1 · 2025: 3 · 2024: 2 · 2021: 1 · 2020: 4 · 2019: 5 · 2018: 3 · 2017: 1 · 2016: 11 · 2015: 7 · 2014: 3 · 2013: 2 · 2012: 2
- FWCI
- 2.11
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Intelligence (publishedVersion)
- Topics
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Cognitive Abilities and Testing
- Health Sciences › Health Professions › General Health Professions › Romani and Gypsy Studies
- Social Sciences › Sociology and Political Science › Social and Intergroup Psychology
- Keywords
- general intelligence, Roma, South Asians, Raven's Progressive Matrices, executive function, cross-cultural generalizability, item-total correlation, sex differences in intelligence, cranial capacity, age at first birth, offspring number, cultural bias in intelligence testing
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