/sci/ - Science & Math

>>5113178
>Upholding the idea that there are genetic differences between the races that would cause differences in intelligence is nothing more that propagating an idea which has been falsified.
When was this falsified? Where is any study that proves races have inherently equal intelligence?

And if races share the same distribution of intelligence genes (an incredibly unlikely scenario) why is there a persistent racial IQ gap?

Can science solve the racial intelligence gap?

>Michigan educators have spent years trying to address the persistent gap in achievement between white and minority students, but Michigan Merit Exam results released Thursday provided troubling news: The gap keeps widening.

>“We need to end this disparity in education, and we need to do this together as a state,” Flanagan said.

>“We are very concerned about (the gaps),” said Jeanne Farina, assistant superintendent for instructional services. District and building equity teams are looking at the gaps, she said, “and digging deep into the data to find out where did they start to fail and what we can do about it.”

http://amren.com/news/2012/06/racial-gaps-in-michigan-exam-results-a-concern/

As discussed in Herrnstein and Murray’s (1994) The Bell Curve, and Rushton’s (1995) Race, Evolution, and Behavior, the heritability of intelligence is now well established from numerous adoption, twin, and family studies. Particularly noteworthy are the genetic contributions of around 80% found in adult twins reared apart. And most transracial adoption studies provide evidence for the heritability of racial differences in IQ. For instance, Korean and Vietnamese children adopted into white American and white Belgian homes were examined in studies by E.A. Clark and J. Hanisee, by M. Frydman and R. Lynn, and by M. Winick et al. Many had been hospitalized for malnutrition. But they went on to develop IQs ten or more points higher than their adoptive national norms. By contrast, the famous Minnesota Transracial Adoption Study marked black/white differences emerged by age 17 even though the black children had been reared in white middle-class families (Weinberg, Scarr & Waldman, 1992).

>>3670708
Heritability of g has been shown numerous times to increase with age.

>>3550948
General cognitive ability (intelligence, often indexed by IQ scores) is one of the most highly heritable behavioral dimensions. In an attempt to identify some of the many genes (quantitative trait loci; QTL) responsible for the substantial heritability of this quantitative trait, the IQ QTL Project uses an allelic association strategy. Allelic frequencies are compared for the high and low extremes of the IQ dimension using DNA markers in or near genes that are likely to be relevant to neural functioning. Permanent cell lines have been established for low-IQ (mean IQ = 82; N = 18), middle-IQ (mean IQ = 105; N = 21), and high-IQ (mean IQ = 130; N = 24) groups and for a replication sample consisting of even more extreme low-IQ (mean IQ = 59; N = 17) and high-IQ (mean IQ = 142; N = 27) groups. Subjects are Caucasian children tested from 6 to 12 years of age. This first report of the IQ QTL Project presents allelic association results for 46 two-allele markers and for 26 comparisons for 14 multiple-allele markers. Two markers yielded significant (p < .01) allelic frequency differences between the high- and the low-IQ groups in the combined sample-a new HLA marker for a gene unique to the human species and a new brain-expressed triplet repeat marker (CTGB33). The prospects for harnessing the power of molecular genetic techniques to identify QTL for quantitative dimensions of human behavior are discussed.

>>2722417