Study Search Results Your query returned 5 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. 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 to Adult Health (Add Health), 1994-2008 [Public Use] (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.