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Black/white IQ differences: does age make the difference?

K R Vincent1

  • 1University of Houston, TX.

Journal of Clinical Psychology
|March 1, 1991
PubMed
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Intelligence test score gaps between Black and White adults remain stable, but differences between Black and White children are narrowing. This suggests improving educational and economic opportunities may be influencing cognitive development.

Area of Science:

  • Psychometrics
  • Developmental Psychology
  • Educational Psychology

Background:

  • Historical IQ score gaps between racial groups have been attributed to various factors, including potential test bias and socioeconomic disparities.
  • Previous research, notably Jensen's (1969) work, highlighted significant IQ differences between Black and White populations.
  • Societal changes in educational access and economic conditions over recent decades may impact cognitive performance metrics.

Purpose of the Study:

  • To analyze current racial differences in standardized intelligence test scores.
  • To investigate trends in IQ score disparities between Black and White children and adults.
  • To contextualize findings within the framework of potential IQ test bias and evolving socioeconomic factors.

Main Methods:

Related Experiment Videos

  • Comparative analysis of normative data from prominent intelligence assessments.
  • Examination of recent renorming data for the Wechsler Adult Intelligence Scale-Revised (WAIS-R).
  • Review of data from the Kaufman Assessment Battery for Children (KABC), Stanford-Binet IV, and Raven's Progressive Matrices.

Main Results:

  • A consistent one standard deviation IQ difference persists between Black and White adults.
  • A decline in IQ score differences is observed between Black and White children across multiple tests.
  • Data suggest a potential narrowing of the gap in cognitive assessments for younger demographics.

Conclusions:

  • The observed decline in IQ differences among children may indicate the positive influence of improved educational and economic opportunities.
  • While adult IQ gaps remain constant, trends in children's scores suggest a dynamic interplay between environment and cognitive assessment.
  • Further research is warranted to explore the long-term implications of these trends and the complex relationship between race, environment, and intelligence testing.