What's more, there have been 10 random assignment studies of school vouchers (the best design possible) and 9 of them have found positive results for some or all participating students. (educationnext.org)
MIHOPE - Strong Start is the largest random assignment study to date examining the effects of home visiting services on birth and health outcomes and health care use. (mdrc.org)
This report, a Public / Private Ventures project distributed by MDRC, summarizes findings from a four - year random assignment study of an out - of - school - time program for middle - schoolers. (mdrc.org)