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The Integrated Fertility Survey Series (IFSS) is a project of the Population Studies aiming in view to produce a harmonized dataset of U.S. family and fertility surveys spanning five decades (1955-2002). IFSS integrates data from ten underlying component studies of family and fertility encompassing the Growth of American Families (GAF) in 1955 and 1960; National Fertility Surveys (NFS) in 1965 and 1970; as well as National Surveys of Family Growth (NSFG) in 1973, 1976, 1982, 1988, 1995, and 2002. The first release contains harmonized sociodemographic variables for all respondents from all ten component studies, including those related to marital status, race and ethnicity, etc. Thus it provides access to researchers, educators, students, policy makers, and others with a data resource to examine issues related to families and fertility in the United States. Potential users can download original/ harmonized datasets (along with documentation) and numerous analytic tools make it possible to quickly and easily explore the data and obtain information about changes in behaviors and attitudes across time.
The Research Data Center (RDC) of the Collaborative Research Center 882 "From heterogeneities to inequalities" at Bielefeld University provides external scientists access to the research data generated in the CRC 882. It provides access to both qualitative and quantitative data from the field of inequality research. The CRC 882 RDC supports external researchers who are reusing the data, as well as gives advice on data documentation and anonymization procedures to the researchers of the CRC to ensure high data quality. The datasets include, for example, a panel on youth crime, different series of interviews on ethnicity, paternal life and recalls of employees, as well as other panels, interview data and experimental data. In the further course of the Collaborative Research Center the database will be expanded with the data of future projects. External scientists can make an application for the scientific use of CRC 882 Research Data. In accordance with data privacy requirements, the access will be organized via controlled remote data access or via on-site use. For this purpose, the RDC provides workplaces for guest researchers.