Evaluating Two Approaches to Case Management: Implementation, Participation Patterns, Costs, and Three-Year Impacts of the Columbus Welfare-to-Work Program. Data Sources, Samples, and Time Frame for the Analysis


This report draws data from several sources. The accompanying text box describes the data sources used for each analysis and presents the sample sizes that correspond to each source. To facilitate cross-program comparisons, the participation and cost analyses for Columbus cover a two-year period, as did the analogous analyses of other programs that were presented in earlier NEWWS reports. Analyses of the integrated and traditional programs' impacts on employment, earnings, and welfare receipt, however, cover three years of follow-up (because three years of employment and welfare data were available when the analysis was conducted).(25)

As mentioned earlier, the follow-up period covered in this report preceded the implementation of the state's TANF program. It is worth noting, however, that when Ohio Works First began in October 1997, the "embargo" on control services was lifted. In other words, control group members who were receiving welfare or who reapplied for assistance could then be mandated to participate in the state's welfare-to-work program. In addition, at this time all sample members  in the control, integrated, and traditional groups  began receiving integrated case management. (Future reports whose follow-up period extends past October 1997 will address this issue.)