H
Havard
Guest
Copypasted from Wikipedia:
Attempted explanations have included improved nutrition, a trend towards smaller families, better education, greater environmental complexity, and heterosis[8]. Another proposition is greater familiarity with multiple-choice questions and experience with brain-teaser IQ problems.
What I’m getting at is that the kinds of people who have the advantages stated in the above wiki article are more likely to live in post-Christian, urban parts of the West and Far East… I’m not surprised at the generalization.Many studies find that children who do not attend school for one reason or another score lower on the tests than their regularly attending peers. During the 1960s, when some Virginia counties closed their public schools to avoid racial integration, compensatory private schooling was available only for Caucasian children. On average, the scores of African-American children who did not receive formal education during that period decreased at a rate of about six IQ points per year.