User:Traycloys/notes

Edit to Race and intelligence
in a review of the results of a total of 6,246,729 participants in other tests of cognitive ability or aptitude, found a difference in mean scores between black people and white people of 1.1 standard deviations (SD). As IQ is normally distributed, a difference of 1.1 SD would put the mean IQ of the black population at the 14th percentile of the white population, meaning that about 86% of whites have an IQ greater than the average black IQ score.

Pages to link

 * Variability hypothesis