African IQ and Mental Retardation

  title={African IQ and Mental Retardation},
  author={Leon J. Kamin},
  journal={South African Journal of Psychology},
  pages={1 - 9}
  • L. Kamin
  • Published 2006
  • Psychology
  • South African Journal of Psychology
Rushton and Jensen (2005), in an extensive review of racial differences in intelligence test scores, assert that some part of the difference between blacks and whites in mean intelligence (IQ) scores is genetic in origin. They cite earlier reviews by Lynn (1991) and by Lynn and Vanhanen (2002), as well as several more recent studies, which are said to indicate that the mean IQ of sub-Saharan black Africans is about 70 - at the borderline of mental retardation. The present article reviews… Expand
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