This report contains national estimates of school achievement for children aged 6-11, as measured by the Reading and Arithmetic subtests of the Wide Range Achievement Test (WRAT). This data was obtained in the second cycle of the Health Examination Survey, conducted in 1963-65. A probability sample of 7,417 children was selected to represent the…

This report presents national estimates of the intellectual development levels of noninstitutionalized children 6-11 years of age in the United States. These estimates were determined by scores on the Vocabulary and Block Design subtest of the WISC obtained in the Health Examination Survey of 1963-65. Findings are shown by age, sex, and grade in…

Data on the intellectual maturity of children 6-11 years of age in the noninstitutionalized population of the U. S. is analyzed in relation to their demographic and socioeconomic background. This is the second report on the Goodenough-Harris Drawing Test, administered in the Health Examination Survey of 1963-65, and deals with the results in…