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Field work has been completed for a national sample study of the growth of American families. Its objectives are: (1) to study expectations of size of family as one basis for better forecasts of births; (2) to describe differences in fertility behavior for major population strata; and (3) to test the relationship of basic social variables to fertility behavior. A national probability sample of white married women in the childbearing years has been interviewed and field work has been completed. The response rate was high.
Whelpton et al. (Tue,) studied this question.