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 Supported Work Evaluation Study, 1975-1979: Public Use Files (ICPSR 7865) Manpower Demonstration Research Corporation 2. Research on Pathways to Desistance [Maricopa County, AZ and Philadelphia County, PA]: Calendar Data, 2000-2010 [Restricted] (ICPSR 32282) Mulvey, Edward P.