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. Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. 1. Process and Outcome Evaluation of the Gang Resistance Education and Training (G.R.E.A.T.) Program, 2006-2011 [UNITED STATES] (ICPSR 34899) Esbensen, Finn-Aage; Osgood, Wayne; Peterson, Dana; et al.