Mediators of IQ test score differences across racial and ethnic groups: The case for environmental and social justice

Mediators of IQ score differences of Whites with Hispanics and African Americans are reviewed in the WISC-IV, WISC-V, and WAIS-IV. Mediators included parent education, income and academic expectations for children and adolescents, and self-education, income and occupation for adults. Results showed that these variables account for substantial portions of variance in all group comparisons, but least for African Americans and adults. The critical...