I believe the premise, but ...
http://en.wikipedia.org/wiki/History_of_the_race_and_intelligence_controversy
In 1912 the Columbia psychology graduate Frank Bruner reviewed the scientific literature on auditory perception in black and white subjects in Psychological Bulletin,[12] characterizing, "the mental qualities of the Negro as: lacking in filial affection, strong migratory instincts and tendencies; little sense of veneration, integrity or honor; shiftless, indolent, untidy, improvident, extravagant, lazy, lacking in persistence and initiative and unwilling to work continuously at details. Indeed, experience with the Negro in classrooms indicates that it is impossible to get the child to do anything with continued accuracy, and similarly in industrial pursuits, the Negro shows a woeful lack of power of sustained activity and constructive conduct."[6]
In 1916 George O. Ferguson conducted research in his Columbia Ph.D. thesis on "The psychology of the Negro",[13] finding them poor in abstract thought, but good in physical responses, recommending how this should be reflected in education.[14] In the same year Lewis Terman, in the manual accompanying the Stanford-Binet Intelligence Test,[15] referred to the higher frequency of morons among non-white American racial groups stating that further research into race difference on intelligence should be conducted and that the "enormously significant racial differences in general intelligence" could not be remedied by education.[14]
(Those are those early IQ test type studies)
In 1965 William Shockley, Nobel laureate in physics and professor at Stanford University, made a public statement at the Nobel conference on "Genetics and the Future of Man" about the problems of "genetic deterioration" in humans caused by "evolution in reverse". He claimed social support systems designed to help the disadvantaged had a regressive effect. Shockley subsequently claimed the most competent American population group were the descendants of original European settlers, because of the extreme selective pressures imposed by the harsh conditions of early colonialism.[37] Speaking of the "genetic enslavement" of African Americans, owing to an abnormally high birth rate, Shockley discouraged improved education as a remedy, suggesting instead sterilization and birth control.
(more recent)
