Study Search Results Your query returned 3 results. Series results are grouped under the most relevant study. You can ungroup series results. Results per page: 25 50 100 Sort by: Study Relevance Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. Variable Relevance (?) Study Title/Investigator 1. Monitoring the Future: A Continuing Study of American Youth (12th-Grade Survey), 2004 (ICPSR 4264) Johnston, Lloyd D.; Bachman, Jerald G.; O'Malley, Patrick M.; et al. 3 more results in Monitoring the Future (MTF) Series 2. National Survey of Parents and Youth (NSPY), 1998-2004 -- Restricted Use Files (ICPSR 27868) David, Susan; Hornik, Robert; Maklan, David 3. Center for Education and Drug Abuse Research (CEDAR): Etiological and Prospective Family Study in Southwestern Pennsylvania, Baseline Data, 1990-2011 (ICPSR 33444) Tarter, Ralph E.