Several propositions deduced from the discrepancy hypothesis were tested with four-month-old infants using random shapes in a habituation/discrepancy paradigm. (JMB)

Results showed that the performance of the suburban and urban 10-year-olds on a Piaget-based map drawing task did not differ significantly, while the Appalachian children performed significantly better than one or both of the other groups on three out of the four spatial concepts. (JMB)

Twenty-two infants aged eight weeks and 23 infants aged 16 weeks were tested in a visual fixation paradigm for the detection and use of sound localization cues. (JMB)

Head turning to off-centered sound was videotaped monthly for 13 infants during their first three months of life. (JMB)

Results indicated that three- and four-year-olds judge area by a height plus width rule. This adding rule was interpreted in terms of a general purpose judgmental strategy that young children employ to make quantitative judgments. (JMB)

After studying photographs of real-world scenes, kindergartners, fourth graders, and adults were tested on their recognition memory in the landmark-in-context condition. For testing, the original scenes were paired with three types of foils: different landmark/different context, different landmark/original context, and original landmark/different…

Two tasks were used to evaluate the relationship between concept usage and the organization of knowledge in semantic memory for 7-, 11-, 15-, and 18-year-old subjects. (JMB)

Twenty-four socially withdrawn preschool children, identified through classroom observations, were assigned to one of three conditions: (1) socialization with a younger child during 10 play sessions, (2) socialization with an age mate during a similar series of sessions, and (3) no treatment. (JMB)

Behavioral observations and sociometric methods revealed a stable dominance hierarchy in eight groups of 12- to 14-year-old male and female adolescents at a summer camp. (JMB)

Examined cross-race acceptance on a rating-scale measure which assessed how much children liked to play and work with each of their classmates. A total of 38 Black and 116 White children were tested in the third grade in 1973 and again in the sixth grade in 1976. (JMB)

Interest in babies was assessed in 30 high school seniors and 32 college freshmen. Measures varied from passive perceptual responses to pictures, to behavioral reactions to a live baby in the presence and in the absence of an adult. (JMB)

Children's security of attachment to their mothers at age 18 months and their effective autonomous functioning at two years were related to the dimensions of ego-control and ego-resiliency at age four to five years. (JMB)

Reports two concurrent experiments which measured chicks' degree of imprinting to mechanical cohabitants and the relationship between preseparation behavior and reactions to the removal of the cohabitant. (JMB)

High and low SES mothers of one- and three-year-old children (N=104) were interviewed. Results showed that low SES mothers believed that infants acquire basic cognitive skills later and that the introduction of cognitively stimulating activities should occur later than did high SES mothers. (JMB)