Study Search Results Your query returned 2 results. Use the search box below to revise your search, or start a new search. Results per page: 25 50 100 Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. (?) Study Title/Investigator 1. 21st Century Americanism: Nationally Representative Survey of the United States Population, 2004 (ICPSR 27601) Schildkraut, Deborah; Grosse, Ashley 2. Americans' Changing Lives: Waves I, II, III, IV, and V, 1986, 1989, 1994, 2002, and 2011 (ICPSR 4690) House, James S.