Amid growing controversy about the oft-cited "30-million-word gap," this investigation uses language data from five American communities across the socioeconomic spectrum to test, for the first time, Hart and Risley's (1995) claim that poor children hear 30 million fewer words than their middle-class counterparts during the early years…

Three-month-old Cameroonian Nso farmer and German middle-class infants were compared regarding learning and retention in a computerized mobile task. Infants achieving a preset learning criterion during reinforcement were tested for immediate and long-term retention measured in terms of an increased response rate after reinforcement and after a…

The relation of social and linguistic input measures to early vocabulary development was examined in 30 low-income African American mother-infant pairs. Observations were conducted when the child was 0 years, 1 month (0;1), 0;4, 0;8, 1;0, 1;6, and 2;0. Maternal input was coded for word types and tokens, contingent responsiveness, and…

An investigation was made of the relationship between sex-role orientation (as measured by the Bem Sex Role Inventory) and responsiveness in infant care (as determined by observations on the Nursing Child Assessment Feeding Scale). Subjects participating in the study consisted of 44 father/infant dyads. It was hypothesized that androgynous fathers…

Scores on the Parental Attitudes Research Instrument and on Rotter's Internality-Externality Scale were compared for 28 lower class black mothers of high risk infants and 34 mothers of same-age infants from the general population of a Southern University town. (GO)

Two studies examined the influences of concordant and nonconcordant attachment relationships to mothers and to child caregivers on children's behavior in child care. In both studies, the child's level of competence in play with the caregiver and engagement with peers was a function of attachment security with both mother and caregiver. (NH)

THIS ARTICLE PRESENTS SIZE AND GROWTH VELOCITY DATA COLLECTED DURING A LONGITUDINAL STUDY OF 111 NORMAL, HEALTHY NEGRO INFANTS FROM LOWER-MIDDLE-CLASS FAMILIES. DATA WERE OBTAINED FROM BIRTH RECORDS AND MEASUREMENTS TAKEN DURING ROUTINE PHYSICAL EXAMINATIONS. WHEN THIS NEGRO SAMPLE WAS COMPARED WITH WHITE INFANTS IN SIMILAR STUDIES IT WAS FOUND…

A study of 53 8- to 10-year-old children from African-American and white working- to middle-class families in Chattanooga (Tennessee) supports the hypothesis that, compared to white children, African-American children are less stereotyped in their responses to African-American and white infants. Gender differences are evident for Whites but not…

Ten normal white babies of middle class parents from the United States and 11 from Holland were observed for one 3-hour period every 2 weeks for the first 3 months of life. The observation form called for an observation about every 5 minutes, about 36 observations per visit. Although all the data on the American babies have not been completely…

This study investigated the response behavior of nine infants, aged 13-15 weeks, to a recurrent pattern of visual and verbal stimuli presented by their own mothers and by female strangers. The infants were presented with the following 2-minute sequence (repeated 3 times): (1) one-half minute of an unknown female leaning over the crib with a…