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. Changing Patterns of Homicide and Social Policy in Philadelphia, Phoenix, and St. Louis, 1980-1994 (ICPSR 2729) Zahn, Margaret A. 2. Evaluation of the Phoenix, Arizona, Homicide Clearance Initiative, 2003-2005 (ICPSR 26081) McEwen, Tom 3. Multiple Imputation for the Supplementary Homicide Reports: Evaluation in Unique Test Data, 1990-1995, Chicago, Philadelphia, Phoenix and St. Louis (ICPSR 36379) Roberts, John; Roberts, Aki 4. New Approach to Evaluating Supplementary Homicide Report (SHR) Data Imputation, 1990-1995 (ICPSR 20060) Wadsworth, Tim; Roberts, John M.