A much greater positive effect of the program was found with culturally deprived, preschool Negro children than with more advantaged Caucasian children. (Authors)

Used hierarchical linear modeling to explore the effects of the social context of Chapter 1 prekindergarten classrooms on 4-year-olds' learning. Found that children made smaller gains on the Preschool Inventory over the preschool year in classrooms with higher concentrations of minorities, children with special needs, recent immigrants, and…

Evaluates a two-year intervention program for low income families in which a toy demonstrator modeled verbal interactions with children ages two to four. Contrary to earlier results, finds no detectable program effects in children's IQ, achievement, or school adjustment three years post-program. Considers problems of ensuring that samples are…

Evaluated effects of Chicago Child-Parent Center and Expansion Program on 559 low-income, inner-city African American children. Found that program participation for two or three years after preschool and kindergarten was associated with higher reading achievement up to seventh grade and lower cumulative grade retention and special education…