Study Search Results Your query returned 3 results. Series results are grouped under the most relevant study. You can ungroup series results. Results per page: 25 50 100 Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. Most Downloaded (?) Study Title/Investigator 1. American National Election Study: 1998 Pilot Study (ICPSR 2693) Sapiro, Virginia; Rosenstone, Steven J.; National Election Studies 2. Negro Political Participation Study, 1961-1962 (ICPSR 7255) Matthews, Donald; Prothro, James 3. Southern Primary and General Election Data, 1946-1972 (ICPSR 72) Bartley, Numan V.; Graham, Hugh D.