Conducted secondary analysis of existing data from two major national surveys of adults to examine whether number of siblings is related to sociability among men and women. The findings do not suggest a relationship between sibling number and being affiliative as an adult. (Author/NB)

Analyzes data from three major American data sets and reports that the effect of father's education on son's education varies considerably with size of family. Concludes that the American educational system has been more open for boys coming from small families than for those from large families. (KH)

Reports family background continues to be closely related to educational attainment. Suggests that because there is a strong negative relation between the number of siblings and scores on tests measuring verbal ability, recent reductions in sibling number would be expected to contribute to enhanced verbal ability and increasing years of schooling.…