Study Search Results Your query returned 3 results. Results per page: 25 50 100 Sort by: Study Relevance Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. Most Downloaded Variable Relevance (?) Study Title/Investigator 1. Evaluation of the Hawaii Opportunity Probation with Enforcement (HOPE) Community Supervision Strategy, 2007-2009 (ICPSR 27921) Hawken, Angela 2. Latino MSM Community Involvement: HIV Protective Effects (ICPSR 34385) Ramirez-Valles, Jesus 3. Iowa Youth and Families Project, 1989-1992 (ICPSR 26721) Conger, Rand D.; Lasley, Paul; Lorenz, Frederick O.; et al.