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. 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. The 500 Family Study [1998-2000: United States] (ICPSR 4549) Schneider, Barbara; Waite, Linda J 2. Youth Development Study, 1988-2011 [St. Paul, Minnesota] (ICPSR 24881) Mortimer, Jeylan T.