Mmmm my favourite kind of controversial question! He ran into a bit of trouble explaining why australian skulls were bigger. Also he compared female to male brains without compensating for body size. And they tend to define "intelligence" in a way that favors those groups. Heck, on a pure size basis, the Neanderthals had it over us sapiens. If anything, why dont these people look at the culture, family background, and other factors.
Brain size=IQ level theory (Blacks vs Whites & Asians)
Brain size - Wikipedia
Last year he came out with a book, A Troublesome Inheritance, which announced that racial genes made Africans violent, over-trusting tribalists, and for similar reasons the Japanese were authoritarian, the English enterprising and the Finns violent and impulsive drunks. Wade, incidentally, insists he is not a racist. But, well, not so. To take a couple of examples, the conservative British news magazine, The Spectator,devoted a Wade-written cover story to the book, while the bulldog of British television interrogators, the usually relentless Jeremy Paxman, treated Wade to a respectful if slightly amused soft-soaping.
Biogeographic variation[ edit ] A number of studies have found that brain size and cranial morphology correlate with geographic ancestry in humans. The study found that human brain size varied with latitude of biogeographic ancestry. Sex[ edit ] Average brain weight for males and females over lifespan. From the study Changes in brain weights during the span of human life.
Edit GRE scores - used in U. Particularly small sample sizes for minority racial groups make it difficult to make useful comparisons, especially among a self-selected group of GRE test takers  Gaps are seen in other tests of cognitive ability or aptitude, including university admission exams such as the SAT and GRE , as well as employment tests for corporate settings and the military. In the United States, achievement tests find that by 12th grade black students are performing on average only as well as white students in 10th grade, and Asian students in 8th grade; Hispanic students do only slightly better than blacks.