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. Early Years of Marriage (EYM) Project, Years 1-4, 1986-1989 (ICPSR 4557) Veroff, Joseph; Douvan, Elizabeth; Hatchett, Shirley; et al. 2. Project on Human Development in Chicago Neighborhoods: Community Survey, 1994-1995 (ICPSR 2766) Earls, Felton J.; Brooks-Gunn, Jeanne; Raudenbush, Stephen W.; et al.