Search Results Use the search box below to revise your search, or start a new search. Studies (8) Variables Publications Your query returned 4 studies. Series results are grouped under the most relevant study. Ungroup series results to view all results. Sort by: Study Relevance Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. Variable Relevance 1. Iowa Youth and Families Project, 1989-1992 (ICPSR 26721) Conger, Rand D.; Lasley, Paul; Lorenz, Frederick O.; et al. 2. Project on Human Development in Chicago Neighborhoods (PHDCN): Substance Use, Wave 1, 1994-1997 (ICPSR 13602) Earls, Felton J.; Brooks-Gunn, Jeanne; Raudenbush, Stephen W.; et al. 4 more results in Project on Human Development in Chicago Neighborhoods (PHDCN) Series 3. Adolescent Substance Abuse Prevention Study (ASAPS), 2001-2006 [Detroit, Houston, Los Angeles, Newark, New Orleans, St. Louis] (ICPSR 28641) Sloboda, Zili 4. Helping Young Smokers Quit: Identifying Best Practices for Tobacco Cessation, Phase II National Program Evaluation, 2003-2006 (ICPSR 33161) Mermelstein, Robin J.; Curry, Susan J.