The Stanford-Binet intelligence test was administered by 104 third- and sixth-grade, disadvantaged black children in Negro non-standard dialect and in standard English. Younger children performed better than older children. No significant differences were found between dialect and standard-English test administrations. (ST)

Investigates levels and patterns of intellectual development of 131 socioeconomically disadvantaged children in university-based intervention group day care or community day care, or with little or no day care. Results suggest that high quality day care may positively change the intellectual development of socioeconomically disadvantaged children.…

Assessed the effects of preschool education on achievement in primary school for 88 impoverished African American children and their families. Found that the positive effects of a preschool intervention program on intellectual development and academic achievement were maintained through age 12 and that school-age intervention alone was less…

Examined differences in intelligence test scores of black and white five-year-olds born premature with low birth weight. Found that black children's IQ scores were 1 SD lower than those of white children. Adjustments for ethnic differences in poverty reduced the differential by half; adjustments for differences in home environment reduced it by…

Examined influences on African-American children's cognitive development between 6 months and 8 years. Found that more optimal patterns of development were associated with intensive early educational child care, responsive home stimulation, and higher maternal IQ. Child care experiences were related to cognitive performance through enhancing…