Using the infrastructure of a national welfare program we implemented the integrated early child development intervention on a large scale and showed its potential for improving children’s cognitive development. We found no effect of supplementation on developmental or health outcomes....

This paper presents estimates of TTW impacts on service enrollment, earnings, and benefit amounts during the first two years of program implementation. Estimates indicate that TTW had a small impact on promoting service enrollment during the first year of rollout. However, there is no compelling...

This report, the second from a large-scale study for the U.S. Department of Education’s Institute of Education Sciences of four early math programs, shows that the curriculum used by the study schools mattered. The study examined (1) Investigations in Number, Data, and Space (Investigations),...