This report gives estimates of the intellectual maturity based on the Goodenough-Harris Drawing Test (GHDT). The data were collected in Cycle III of the Health Examination Survey of noninstitutionalized U.S. youths during 1966-70. The GHDT instructions were modified for use in the survey to require each youth to draw two figures--a…

Until the 1970s, there were few signs of change in the historic difference of one standard deviation between average ability or achievement test scores of black and white students. From 1970 to the mid-to-late 1980s, there was a substantial convergence of the average achievement test scores of blacks and whites. From the mid-to-late 1980s to 1992,…