Study Search Results Your query returned 4 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. Most Downloaded (?) Study Title/Investigator 1. Evaluation of CASAWORKS for Families -- Phase I, 1999-2001 [United States] (ICPSR 21681) Morgenstern, Jon ; Nakashian, Mary R. 2. General Social Survey, 1972-2012 [Cumulative File] (ICPSR 34802) Smith, Tom W.; Hout, Michael; Marsden, Peter V. 3. National Longitudinal Study of Adolescent Health (Add Health), 1994-2008 (ICPSR 21600) Harris, Kathleen Mullan; Udry, J. Richard 4. New Hope Project: Income and Employment Effects on Children and Families, 1994-2003 [Restricted Use] (ICPSR 30282) Huston, Aletha; Miller, Cynthia; Duncan, Greg; et al.