2006-12-07T13:05:12-06:00 2010-01-23T01:09:47-06:00 Abstract from the study: "The impetus for our study was the contention of both Lynn and Rushton that persons in colder climates tend to have higher IQs than persons in warmer climates. We correlated mean IQ of 129 countries with per capita income, skin color, and winter and summer temperatures, conceptualizing skin color as a multigenerational reflection of climate. The highest correlations were − 0.92 (rho = − 0.91) for skin color, − 0.76 (rho = − 0.76) for mean high winter temperature, − 0.66 (rho = − 0.68) for mean low winter temperature, and 0.63 (rho = 0.74) for real gross domestic product per capita. The correlations with population of country controlled for are almost identical. Our findings provide strong support for the observation of Lynn and of Rushton that persons in colder climates tend to have higher IQs. These findings could also be viewed as congruent with, although not providing unequivocal evidence for, the contention that higher intelligence evolves in colder climates. The finding of higher IQ in Eurasians than Africans could also be viewed as congruent with the position of Diamond (1997) that knowledge and resources are transmitted more readily on the Eurasian west–east axis." In short, the average intelligence of a population or ethnic group varies across the globe. The field is currently trying to determine why higher intelligence was selected for (by natural selection) more among some groups than others. The skin color of a given group reflects their exposure to ultraviolet light over the past tens of thousands of years, with lighter skin associated with colder climates. Light skin was found to correlate with high intelligence, in terms of the averages of homogenous populations. The correlation between IQ and climate was, while quite strong, weaker. The highest scoring ethnic groups, are not pale Vikings but East Asians (Koreans, Japanese and Chinese). The journal Intelligence is peer-reviewed and shares a publisher with The Lancet. 26112 Skin Color & Intelligence, A Relationship fKV4CTGI0rzo/Esw4ToIDA== The peer-reviewed Journal Intelligence http://cat.inist.fr/?aModele=afficheN&cpsidt=17578982 1001408 2007-07-20T01:44:41-06:00