Search Results Use the search box below to revise your search, or start a new search. Studies (4) Variables Publications Your query returned 4 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. Faith Matters Survey, 2006 (ICPSR 36315) Putnam, Robert D.; Campbell, David E. 2. Mexico Panel Study, 2012 (ICPSR 35024) Greene, Kenneth 3. Values, Institutional Quality, and Development in Portugal, 2012-2013 (ICPSR 36289) Portes, Alejandro; Marques, Margarida 4. Youth-Parent Socialization Panel Study, 1965-1973 (ICPSR 7779) Jennings, M. Kent; Niemi, Richard G.