Study Search Results Your query returned 2 results. Series results are grouped under the most relevant study. You can ungroup series results. Results per page: 25 50 100 Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. (?) Study Title/Investigator 1. National Youth Survey [United States]: Wave II, 1977 (ICPSR 8424) Elliott, Delbert 5 more results in National Youth Survey (NYS) Series 2. Project on Human Development in Chicago Neighborhoods (PHDCN): Deviance of Peers, Wave 2, 1997-2000 (ICPSR 13615) Earls, Felton J.; Brooks-Gunn, Jeanne; Raudenbush, Stephen W.; et al.