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Integrated Fertility Survey Series

The purpose of the Integrated Fertility Survey Series (IFSS) is to create a harmonized data set of ten component surveys of fertility and family growth. Integration of these data sets will allow for easier and more efficient use of family and fertility data over time. Data were harmonized from ten component studies of family and fertility, including the 1955 and 1960 Growth of American Families studies, 1965 and 1970 National Fertility Surveys, and the 1973, 1976, 1982, 1988, 1995, and 2002 National Surveys of Family Growth. IFSS staff harmonized all concepts that appeared in at least five of the component studies. In special cases, concepts that appear in as few as two component studies were also harmonized. Comparability notes, located on the IFSS Web site, outline the processes by which data were harmonized.

Most Recent Studies

Related Publications

Most Recent Publications

2015
Zobl, Sara R.,  Smock, Pamela J. Multiple Partner Fertility Among White Married Couples in the U.S., 1955. FP-15-02. Bowling Green, OH: Bowling Green State University, National Center for Family & Marriage.
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2014
Bailey, Martha J.,  Guldi, Melanie,  Hershbein, Brad J. Is there a case for a 'second demographic transition'? Three distinctive features of the post-1960 U.S. fertility decline. Human Capital in History: The American Record. Chicago, IL: University of Chicago Press.
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2014
Brewster, Karin L.,  Tillman, Kathryn H.,  Jokinen-Gordon, Hanna . Demographic characteristics of lesbian parents in the United States. Population Research and Policy Review. 33, (4), 503-526.
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2014
Hayford, Sarah R.,  Guzzo, Karen B.,  Smock, Pamela J. The decoupling of marriage and parenthood? Trends in the timing of marital first births, 1945-2002. Journal of Marriage and Family. 76, (3), 520-538.
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2014
Hayford, Sarah R.,  Sykes, Bart,  Benjamin Guzzo, Karen . Trends in Motherhood Before First Marriage. FP-14-04. Bowling Green, OH: Bowling Green University, National Center for Family & Marriage Research.
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2013
Bailey, Martha J. Fifty years of family planning: New evidence on the long-run effects of increasing access to contraception. Brookings Papers on Economic Activity. 46, (1), 341-409.
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