Males have greater g: Sex differences in general mental ability from 100,000 17- to 18-year-olds on the Scholastic Assessment Test

Jackson, Douglas N.; Rushton, J. Philippe

doi:10.1016/j.intell.2006.03.005

Cited by 94 publications

(62 citation statements)

References 34 publications

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“…These results are consistent with many previous studies looking at general intelligence (e.g. Jackson & Rushton, 2006). Results of Study 1, however, do not test the convergent validity of this scale relative to other measures of intelligence.…”

Section: Discussionsupporting

confidence: 91%

A Life-History Model of Human Fitness Indicators

Sefcek

Figueredo

2010

Biodemography and Social Biology

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Section: Discussionsupporting

confidence: 91%

A Life-History Model of Human Fitness Indicators

Sefcek

Figueredo

2010

Biodemography and Social Biology

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“…In five of these subtests, females scored higher than males, which does not correspond with previous findings suggesting higher general intelligence in males (Jackson & Rushton, 2006;Irwing & Lynn, 2005). The only subtest with significant outperformance of males was Numerical Signs, but the effect size of this difference was rather small (Cohen d 0.15).…”

Section: Discussioncontrasting

confidence: 97%

“…The same conclusions were drawn in their latter study using the Spanish version of WAIS-III (Colom et al, 2002). On the other hand, Jackson and Rushton (2006) concluded that in a sample of 102 516 subjects (17-18 years old adolescents), there is a clear evidence of small but non-trivial differences in general intelligence favoring males. This difference had a pointbiserial effect of 0.12 (equivalent to 3.63 IQ points) and was confirmed across all socioeconomic levels and ethnic groups.…”

supporting

confidence: 67%

Gender Differential Item Functioning in Slovak Version of Intelligence Structure Test 2000 - Revised

Kohút

Haľama²,

Dočkal³

et al. 2016

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Abstract:The study focused on the gender differential item functioning in Slovak version of the Intelligence Structure Test 2000 -Revised (Amthauer et al., 2011). The sample included 744 middle and high school students with mean age of 16.94 years. The non-parametric method SIBTEST for identification of items with differential functioning was used in order to detect uniform and non-uniform DIF. The analysis showed that the I-S-T 2000 R includes several items with DIF favoring either males or females, but in most subtests, with no or small effect on differences between genders. Substantial but nonsignificant effect of DIF items on subtest score was found for Verbal Analogy, which contained six items with DIF all favoring females. These items included verbal content related to areas more common for females such as diet or food. The results suggest that specific content of verbal intelligence items can be a potential source of gender bias.

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“…Translating these effects to IQ points (with a mean of 100 and standard deviation of 15) reveals a male/female difference of between 3.9 and 5.7 points. These values are somewhat higher but not inconsistent with those Jackson and Rushton (2006) report.…”

Section: Discussionsupporting

confidence: 72%

“…Jackson and Rushton (2006) estimated a 3.63 point IQ difference in favor of males (using g-factor scores derived from scholastic aptitude test performance). Looking at our data with ECTs as a proxy for GMA, effect sizes ranged from .26 (for reaction time) to .38 (for the factor score), again favoring males.…”

Section: Discussionmentioning

confidence: 99%