Search Results Use the search box below to revise your search, or start a new search. Studies (52) Variables Publications Your query returned 2 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. Monitoring the Future: A Continuing Study of American Youth (12th-Grade Survey), 1995 (ICPSR 6716) Johnston, Lloyd D.; Bachman, Jerald G.; O'Malley, Patrick M. 50 more results in Monitoring the Future (MTF) Series 2. National Survey of Weapon-Related Experiences, Behaviors, and Concerns of High School Youth in the United States, 1996 (ICPSR 2580) Sheley, Joseph F.; Wright, James D.