智商与种族

Cumulative IQ gaps by race or ethnicity based on 1981 U.S. distributions. According to these findings, WAIS IQs for Whites (mean = 101.4, SD = 14.7) were higher than those for Blacks (mean = 86.9, SD = 13.0); distributions for Hispanics (mean = 91) and East Asians (mean = 106) are less precise because of overlap and small sample size. The modern debate focuses on what causes these disparities in average IQ. Based on Reynolds et al. 1987, p. 330.