This report is one of a series on an evaluation of JOBS called for in the FSA that is being conducted under contract to the U.S. Department of Health and Human Services (HHS), with support from the U.S. Department of Education, by MDRC. The evaluation, which is currently known as the National Evaluation of Welfare-to-Work Strategies, employs a random assignment design, specifically called for in the FSA as well, to determine the effectiveness of the program in seven sites across the country. In three of these sites—Atlanta, Georgia (Fulton County), Grand Rapids, Michigan (Kent County), and Riverside, California (Riverside County)—the study includes an unusual three-way comparison, involving, in each site, random assignment to either of two different types of welfare-to-work programs operated side by side or to a control group receiving no program services.