Search Results Use the search box below to revise your search, or start a new search. Studies (3) Variables Publications Your query returned 2 studies. Series results are grouped under the most relevant study. Ungroup series results to view all results. Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. 1. Afrobarometer Round 4: The Quality of Democracy and Governance in 20 African Countries, 2008 (ICPSR 36359) Bratton, Michael; Mattes, Robert; Gyimah-Boadi, E. 1 more result in Afrobarometer Survey Series 2. ANES 1992 Time Series Study (ICPSR 6067) Miller, Warren E.; Kinder, Donald R.; Rosenstone, Steven J.; et al.