Study Search Results Your query returned 10 results. Series results are grouped under the most relevant study. You can ungroup series results. Use the search box below to revise your search, or start a new search. Results per page: 25 50 100 Sort by: Study Relevance Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. Most Downloaded Variable Relevance (?) Study Title/Investigator 1. Census of Population and Housing, 1980 [United States]: Summary Tape File 5, Special Tabulations of Population 60 Years and Over (ICPSR 8658) United States Department of Commerce. Bureau of the Census 1 more result in Census of Population and Housing, 1980 [United States] Series 2. Norwegian Life History Study, 1971 (ICPSR 8545) Ramsoy, Natalie Rogoff; Skrede, Kari 3. Longitudinal Study of Generations, 1971, 1985, 1988, 1991, 1994, 1997: [California] (ICPSR 4076) Bengtson, Vern L. 4. Old Age in the United States, 1900 (ICPSR 8428) Jensen, Richard; Smith, Daniel Scott; Friedberger, Mark W.; et al. 5. United States Microdata Samples Extract File, 1940-1980: Demographics of Aging (ICPSR 8353) Inter-university Consortium for Political and Social Research 6. Age and Residence Differences in Household Composition, 1980: [United States] (ICPSR 9253) Cutler, Stephen J.; Coward, Raymond T.; Schmidt, Frederick E. 7. Old Age in the United States, 1880 (ICPSR 8427) Jensen, Richard; Smith, Daniel Scott; Friedberger, Mark W.; et al. 8. Longitudinal Study of Generations, 1971, 1985, 1988, 1991, 1994, 1997, 2000 [California] (ICPSR 22100) Bengtson, Vern L. 9. National Health Interview Survey, 1991 (ICPSR 6049) United States Department of Health and Human Services. National Center for Health Statistics 10. National Survey of Families and Households: Wave I, 1987-1988, and Wave II, 1992-1994 (ICPSR 6906) Bumpass, Larry L.; Sweet, James A.