Since its establishment in 1996, Connecticut's Job First Welfare Reform Program has been under rigorous evaluation. As a result, under a contract with the Connecticut Department of Social Services, Manpower Demonstration Research Corporation (MDRC) decided to study the effects of the Job First Program. During the study, nearly 5,000 single-parent welfare applicants and recipients in Manchester and New Haven were randomly assigned to either the Jobs First Program or to the Aid to Families with Dependent Children (AFDC) group (which operated under the prior welfare rules). The effects of the Jobs First Program were estimated by comparing how the two groups fared over a four-year period, and the results are revealed in this report. Users may choose to view the Executive Summary (a short review in HTML), the Summary Report (52 pages), or the Full Report (406 pages). In addition, the Web page provides access to the report's press release (issued February 20, 2002) and a description of Connecticut's Job First Program.