Workfare Evaluations and Meta-Analysis

Le résumé fourni par la source

This chapter describes meta-analysis and pointed out some of the limitations of these methods. It outlines United States efforts to conduct random assignment evaluations of mandatory welfare-to-work programmes and describes a unique database that was developed from information provided by these evaluations. Meta-analysis, widely used in medical and education research, provides a means for distilling the common key findings of an amalgam of policy evaluations. Meta-analysis is a quantitative approach, which consists of a family of statistical techniques that are applied to synthesize findings from multiple studies. Meta-analysis has two primary objects. The first is to provide statistically robust estimates of the size of a policy impact by pooling results across empirical studies, each of which may be based on a relatively small sample. Secondly, meta-analysis is used to explore characteristics that are associated with variations in the size of impacts observed in different settings and on differing occasions.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.