Search Results Use the search box below to revise your search, or start a new search. Studies (1) Variables Publications Your query returned 1 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. Welfare Dimensions Summary Scores (WDSS): Measuring State Welfare Policy Variations and Change in the United States, 1996-2003 (ICPSR 33561) De Jong, Gordon F.; Graefe, Deborah Roempke; Hall, Matthew; et al.