Study Search Results Your query returned 3 results. Series results are grouped under the most relevant study. You can ungroup series results. Use the search box below to revise your search, or start a new search. Results per page: 25 50 100 Sort by: Study Relevance Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. Most Downloaded Variable Relevance (?) Study Title/Investigator 1. Monitoring the Future: A Continuing Study of American Youth (12th-Grade Survey), 2005 (ICPSR 4536) Johnston, Lloyd D.; Bachman, Jerald G.; O'Malley, Patrick M.; et al. 2 more results in Monitoring the Future (MTF) Series 2. Evaluation of SAFEChildren, a Family-Focused Prevention Program in Chicago, Illinois, 2006-2010 (ICPSR 33101) Tolan, Patrick; Henry, David; Gorman-Smith, Deborah; et al. 3. General Social Survey, 1972-2012 [Cumulative File] (ICPSR 34802) Smith, Tom W.; Hout, Michael; Marsden, Peter V.