General mental ability in South Asians: Data from three Roma (Gypsy) communities in Serbia

Rushton, J. Philippe; Čvorović, Jelena; Bons, Trudy Ann

doi:10.1016/j.intell.2006.09.002

Cited by 49 publications

(53 citation statements)

References 31 publications

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“…As such, the Standard and Advanced Progressive Matrices have been used extensively in many applied settings in the U.S. (e.g. Ackerman, 1992) and across many cultures (Owen, 1992;Raven, 2000;Rushton, Cvorovic, & Bons, 2007). However, the positive aspects of this test are marred by its lengthy administration time (40-60 minutes), making it difficult to use in time-constrained multivariate research or classroom settings.…”

Section: Discussionmentioning

confidence: 99%

A Life-History Model of Human Fitness Indicators

Sefcek

Figueredo

2010

Biodemography and Social Biology

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Section: Discussionmentioning

confidence: 99%

A Life-History Model of Human Fitness Indicators

Sefcek

Figueredo

2010

Biodemography and Social Biology

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“…Te Nijenhuis et al describe how Rushton tested Spearman's hypothesis in a series of studies at the item level using the various versions of Raven's Progressive Matrices (RPM) in Africa and in Serbia [11][12][13][14][15]. The g loadings of items were operationalized as the items' correlation with the total score on the RPM, which has a strong correlation with the general factor of intelligence.…”

Section: Introductionmentioning

confidence: 99%

Spearman’s Hypothesis Tested on Black Adults: A Meta-Analysis

Nijenhuis

Hoek

2016

J. Intell.

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Blacks generally score significantly lower on intelligence tests than Whites. Spearman's hypothesis predicts that there will be large Black/White differences on subtests of high cognitive complexity, and smaller Black/White differences on subtests of lower cognitive complexity. Spearman's hypothesis tested on samples of Blacks and Whites has consistently been confirmed in many studies on children and adolescents, but there are many fewer studies on adults. We carried out a meta-analysis where we collected the existing tests of Spearman's hypothesis on adults and collected additional datasets on Black and White adults that could be used to test Spearman's hypothesis. Our meta-analytical search resulted in a total of 10 studies with a total of 15 datapoints, with participants numbering 251,085 Whites and 22,326 Blacks in total. For all these data points, the correlation between the loadings of a general factor that is manifested in individual differences on all mental tests, regardless of content (g) and standardized group differences was computed. The analysis of all 15 data points yields a mean vector correlation of 0.57. Spearman's hypothesis is confirmed comparing Black and White adults. The differences between Black and White adults are strongly in line with those previously found for children and adults; however, because of lack of access to the original data, we could not test for measurement invariance.

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“…Jensen (1998, ch.10) quite convincingly argues that it is plausible that the true correlation between g loadings and B/W IQ test score differences is close to .90. Virtually all other group differences that have been studied using correlations between g loadings and group differences show substantial to high positive correlations (Rushton, Čvorovič, & Bons, 2007;Rushton & Jensen, 2003;te Nijenhuis & van der Flier, 2003). What makes these findings so important is that all studies computing correlations between heritabilities of subtests of an IQ battery and the g loadings of these same subtests show substantial to strong values of r (Jensen, 1987;Pedersen, Plomin, Nesselroade, & McClearn, 1992;Rijsdijk, Vernon, & Boomsma, 2002;Spitz, 1988).…”

Section: Introductionmentioning

confidence: 99%