The Head Start REDI (Research-based Developmentally Informed) program yields higher year-end language, literacy, and social development scores than typical Head Start classrooms because
◦ children who enroll in REDI programs are higher-SES.
◦ parents who enroll their children in REDI programs are more involved.
◦ it reduces the pressure typical Head Start classrooms put on children to learn.
◦ of its powerful impact on teaching quality.