Study Search Results Your query returned 5 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. Project on Human Development in Chicago Neighborhoods (PHDCN): Deviance of Peers, Wave 1, 1994-1997 (ICPSR 13585) Earls, Felton J.; Brooks-Gunn, Jeanne; Raudenbush, Stephen W.; et al. 2 more results in Project on Human Development in Chicago Neighborhoods (PHDCN) Series 2. Toledo Adolescent Relationships Study (TARS): Wave 1, 2001 (ICPSR 4679) Giordano, Peggy C.; Longmore, Monica A.; Manning, Wendy D. 1 more results in Toledo Adolescent Relationships Study (TARS) Series 3. Drug Abuse Treatment Outcome Study--Adolescent (DATOS-A), 1993-1995: [United States] (ICPSR 3404) United States Department of Health and Human Services. National Institutes of Health. National Institute on Drug Abuse 4. National Longitudinal Study of Adolescent Health (Add Health), 1994-2008 (ICPSR 21600) Harris, Kathleen Mullan; Udry, J. Richard 5. Iowa Youth and Families Project, 1989-1992 (ICPSR 26721) Conger, Rand D.; Lasley, Paul; Lorenz, Frederick O.; et al.