This study was conducted to observe the effects of social class on the interaction of mothers and their 12-week-old infants. Data on the infants' cognitive and attentive behavior was also obtained. Each of 32 white and black infants from five different levels of social class was observed at home for two full hours of waking time. Observed infant…

Six hundred boys divided by age (6-8), race (black and white) and social class (middle and lower) were given tests for memory, intelligence, learning, and transfer. Findings indicated social class differences on learning and intelligence tests, with racial differences on intelligence, digit span, and paired-associate learning. (Author/MV)

The effect of differential knowledge of a referent on children's communication effectiveness was investigated. A total of 40 boys and 40 girls from kindergarten and second grade were given one or three opportunities to explore a maze-like construction approximately 22 square meters in area. Each child was then required to verbally describe the…

This study investigated the effects of training on reciprocity judgments in 43 white, middle class children, ages 38 to 68 months. Hypotheses were (1) children trained to make mature responses to interpersonal conflicts would make more mature judgments in illustrated story conflict situations than those receiving no training, (2) children exposed…

This research was designed to compare the responses of disadvantaged and advantaged 5-year-olds in typical Piagetian experiments, in order to determine whether differences exist in the normative characteristics of centering, conservation, egocentricity, space conception, and irreversibility. A sample of 60 children was drawn from a metropolitan…

This intensive longitudinal study of mother-infant interaction during the first year of life focuses on the development of attachment. Data on 26 middle-class families were collected by five methods: (1) naturalistic observation of each mother-infant pair during 4-hour home visits, which occurred at 3-week intervals from the infants' 3rd to 54th…

This study examined the effects of sex, structure, and social interaction on 18 white middle class children, nine boys and nine girls, attending a daycare center. The children were observed over a 6-week period during a 2 1/2-hour free-play time. Results showed that both sexes equally apportion all types of free-play time behavior, show the same…

Compares the cognitive development of four subcultural groups of boys (Black and White, and lower- and middle-class) in order to test Arthur Jensen's theory. Nine-hundred subjects were studied for four years, and memory, intelligence, learning and transfer measures were employed. (Author/RH)

A research project attempted to discover whether residence in the Tremont Day Care Street Infant Center for 27 months had any significant effect on the cognitive, social and affective development of infants. Children entered this multilingual day care setting at 3 1/2 months and were from Chinese-speaking, Spanish-speaking, or English-speaking…

This paper, part of a long term study, reports the effect of a modified Montessori preschool experience on cognitive development, school-related behaviors, and social interactions and perceptions of disadvantaged children. Each of thirty-five disadvantaged Negro children (31 in nursery classes and 4 in elementary classes) was pair-matched with a…