Some positive results for the REDI program

The What Works Clearinghouse found this study met evidence standards and reports the findings.
This study examined whether the Head Start Research-based Developmentally Informed (REDI) program is more effective than the standard Head Start program at improving the language, emergent literacy, and social-emotional skills of preschoolers.
The study finds that students in the REDI group outperformed control students on one of three measures of language development (effect sizes ranged from –0.07 to 0.15) and two of three measures of emergent literacy skills (effect sizes ranged from 0.16 to 0.39).
In addition, REDI program students exhibited greater understanding of emotions, better social problem-solving skills, and higher levels of learning engagement than students in regular Head Start classrooms.