Uva

... (UV, D-vitamin, melanin etc). There are respectable new studies including those of Nina Jablonski. There is rather good correlation between UV (UVA,UVB and UVC) high radiation and dark skin color. However hair and facial differences are interesting issues too. Haven't red much about these issues ...

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... abilities; Cross-cultural comparison; Measurement equivalence; Measurement invariance Find entire study here: http://wicherts.socsci.uva.nl/wichertsRavenAfr2010.pdf

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... Keywords: Systematic literature review; National IQ; Group differences in IQ Find entire study here: http://wicherts.socsci.uva.nl/wicherts2010AFRrejoinder.pdf

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... differences; Flynn Effect; Race differences; Cross-cultural comparison; National IQ Find entire study here: http://wicherts.socsci.uva.nl/wicherts2009.pdf

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... unknown. Keywords: Evolutionary psychology; Flynn Effect; Race differences; Brain size Find entire study here: http://wicherts.socsci.uva.nl/wichertsPAIDrejoinder.pdf

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