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. National Crime Surveys: Index of Crime Severity, 1977 (ICPSR 8295) Wolfgang, Marvin E.; Figlio, Robert M.; Tracy, Paul E.; et al.