The DOI matches its Crossref record; 310 of the 310 references it cites were found in a registry or an index.
The nature of the black–white difference on various psychometric tests: Spearman's hypothesis
Abstract
Although the black and white populations in the United States differ, on average, by about one standard deviation (equivalent to 15 IQ points) on current IQ tests, they differ by various amounts on different tests. The present study examines the nature of the highly variable black–white difference across diverse tests and indicates the major systematic source of this between-population variation, namely, Spearman's g. Charles Spearman originally suggested in 1927 that the varying magnitude of the mean difference between black and white populations on a variety of mental tests is directly related to the size of the test's loading on g , the general factor common to all complex tests of mental ability. Eleven large-scale studies, each comprising anywhere from 6 to 13 diverse tests, show a significant and substantial correlation between tests' g loadings and the mean black–white difference (expressed in standard score units) on the various tests. Hence, in accord with Spearman's hypothesis, the average black–white difference on diverse mental tests may be interpreted as chiefly a difference in g , rather than as a difference in the more specific sources of test score variance associated with any particular informational content, scholastic knowledge, specific acquired skill, or type of test. The results of recent chronometric studies of relatively simple cognitive tasks suggest that the g factor is related, at least in part, to the speed and efficiency of certain basic information-processing capacities. The consistent relationship of these processing variables to g and to Spearman's hypothesis suggests the hypothesis that the differences between black and white populations in the rate of information processing may account for a part of the average black–white difference on standard IQ tests and their educational and occupational correlates.
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“The only other study which has examined Spearman's hypothesis in the context of intra-SIRE ancestry-related differences is Hu et al. [18].”
From Global Ancestry and Cognitive Ability (2019) · cites this paper as [18]
In the citing paper
“Previous meta-analyses and non-systematic reviews have generally supported SH in US W-B comparisons, with positive vector correlations observed across all cognitive batteries and samples (Jensen, 1985(Jensen, , 1998;;te Nijenhuis & van den Hoek, 2016).”
From A Meta-Analysis of Spearman’s Hypothesis in the United States (2026) · cites this paper as Jensen, 1985
In the citing paper
“Before the present study, the total literature of Spearman's hypothesis tested on Black and White adults in the US consists of only six datasets on adults, and five of these six studies are reported in Jensen [37] and one of these six is reported in Nyborg and Jensen [38]; the correlations for these studies ranged from r = 0.30 to 0.81.”
From Spearman’s Hypothesis Tested on Black Adults: A Meta-Analysis (2016) · cites this paper as [37]
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Metadata
- Authors
- Jensen, A. R.
- Affiliations
- University of California System (US)
- Corresponding author
- Jensen, Arthur R.
- Venue
- Behavioral and Brain Sciences
- Publisher
- Cambridge University Press (CUP)
- Published
- 1985-07
- Volume
- 8
- Issue
- 2
- Pages
- 193-219
- ISSN
- 0140-525X (ISSN-L)
- 1469-1825
- OpenAlex
- W1994167260
- Cited by
- 284
- References
- 289
- Citations by year
- 2026: 1 · 2025: 3 · 2024: 1 · 2023: 1 · 2022: 1 · 2021: 4 · 2020: 4 · 2019: 6 · 2018: 3 · 2017: 7 · 2016: 7 · 2015: 5 · 2014: 6 · 2013: 3 · 2012: 4
- FWCI
- 20.12
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Behavioral and Brain Sciences (publishedVersion)
- Topics
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Cognitive Abilities and Testing
- Social Sciences › Decision Sciences › Management Science and Operations Research › Psychometric Methodologies and Testing
- Social Sciences › Sociology and Political Science › Intergenerational and Educational Inequality Studies
- Keywords
- Spearman's hypothesis, general intelligence factor, g-loading, racial differences in intelligence, processing speed, psychometric tests
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