Scrivener, Susan, and Johanna Walter (2001). National Evaluation of Welfare-to-Work Strategies—Evaluating two approaches to case management: Implementation, participation patterns, costs, and three-year impacts of the Columbus welfare-to-work program, Washington, DC: U.S. Department of Health and Human Services, Administration for Children and Families, Office of the Assistant Secretary for Planning and Evaluation; and the U.S. Department of Education. Available at https://www.mdrc.org/sites/default/files/full_95.pdf.