Search Results Use the search box below to revise your search, or start a new search. Studies (2) Variables Publications Your query returned 2 studies. Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. 1. Afrobarometer Round 5: The Quality of Democracy and Governance in 34 African Countries, 2011-2013 (ICPSR 36351) Mattes, Robert; Gyimah-Boadi, E.; Bratton, Michael 2. National Social Survey [United States] (ICPSR 35588) Miringoff, Marque-Luisa; Miringoff, Marc; Opdycke, Sandra; et al.