Study Search Results Your query returned 6 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. Most Downloaded Variable Relevance (?) Study Title/Investigator 1. National Longitudinal Study of Adolescent Health (Add Health), 1994-2008 (ICPSR 21600) Harris, Kathleen Mullan; Udry, J. Richard 2. Older Drug Users: A Life Course Study of Turning Points in Drug Use [in a large Southeastern Metropolitan Area], 2009-2010 (ICPSR 34296) Boeri, Miriam ; Whalen, Thor 3. General Social Survey, 1972-2012 [Cumulative File] (ICPSR 34802) Smith, Tom W.; Hout, Michael; Marsden, Peter V. 4. Monitoring the Future: A Continuing Study of American Youth (12th-Grade Survey), 2006 (ICPSR 20022) Johnston, Lloyd D.; Bachman, Jerald G.; O'Malley, Patrick M.; et al. 5. National Household Survey on Drug Abuse, 1995 (ICPSR 6950) United States Department of Health and Human Services. Substance Abuse and Mental Health Services Administration. Office of Applied Studies 1 more results in National Survey on Drug Use and Health (NSDUH) Series 6. Criminal Justice Drug Abuse Treatment Studies (CJ-DATS): National Criminal Justice Treatment Program (NCJTP) Survey in the United States, 2002-2008 (ICPSR 27382) Taxman, Faye S.