Are Americans becoming more or less alike? Trends in race, class, and ability differences in intelligence

  • Williams W
  • Ceci S
  • 13

    Readers

    Mendeley users who have this article in their library.
  • 22

    Citations

    Citations of this article.

Abstract

American students' test scores have been slowly but steadily declining for the past half century. Some recent explanations for this decline have focused on dysgenic trends resulting from low-IQ parents outbreeding high- IQ parents. In this article, the authors examined the evi- dence for dysgenic trends by considering race-, class-, and ability-related changes in intelligence test scores over time. They concluded that (a) racial differences in intelligence decreased from 1973 to 1988 and have re- mained fairly constant since, (b) intelligence differences between the upper and lower thirds of social class groups have been decreasing slightly since 1932, and (c) Prelim- inary Scholastic Assessment Test-score differences be- tween the top and bottom quartiles have been relatively stable since 1961. Thus, the authors found no evidence supporting the dysgenic hypothesis. Rather, the combined evidence points to a growing convergence across racial, socioeconomic, and ability-related segments of American society.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • Wendy M. Williams

  • Stephen J. Ceci

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free