This is the first of three volumes of the Final Report for the National Evaluation of Family Support Programs. The three volumes report on distinctly different aspects of the study. This volume reports findings from a meta-analysis of existing research on programs that provide family support services. The second volume reports the findings from a small set of research studies of mature, well-implemented family support programs. The final volume is a set of case studies of the effect on the systems of family support services in three states of the additional funds for family support provided under federal legislation.