This meta-analysis includes a comprehensive set of interventions to provide a quantitative assessment of their impact on child labour. The research reviewed 614 studies on child labour and forced labour identified by the ILO's "Research to Action" (RTA) project and an additional 40 recent studies to obtain a sample of 41 randomized and quasi-experimental impact evaluations suitable for the meta-analysis. As several outcomes and interventions are reported in these studies, 131 effect-size estimates were collected; of these, 86 refer to the child’s probability of engaging in any type of activity