Search Results Use the search box below to revise your search, or start a new search. Studies (6) Variables Publications Your query returned 6 studies. Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. 1. Enhanced Services for the Hard-to-Employ Demonstration and Evaluation Project, Philadelphia, PA (ICPSR 33784) Bloom, Dan; Jacobs, Erin 2. General Social Survey, 1972-2012 [Cumulative File] (ICPSR 34802) Smith, Tom W.; Hout, Michael; Marsden, Peter V. 3. General Social Survey, 1972-2014 [Cumulative File] (ICPSR 36319) Smith, Tom W.; Hout, Michael; Marsden, Peter V. 4. Moving to Opportunity: Final Impacts Evaluation Science Article Data, 2008-2010 (ICPSR 34860) Ludwig, Jens; Duncan, Greg; Gennetian, Lisa; et al. 5. National Longitudinal Study of Adolescent to Adult Health (Add Health), 1994-2008 [Public Use] (ICPSR 21600) Harris, Kathleen Mullan; Udry, J. Richard 6. 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.