Investigated deferred imitation ability for six actions in 14-month-old infants. After a week's delay, infants were tested on their ability to imitate the actions.Those who had been exposed to modeling produced significantly higher instances of the target actions. (SKC)

Compared head circumference and interaural distance in infants between birth and 22 weeks of age and in a small sample of preschool children and adults. Calculated changes in interaural time differences according to age. Found a large shift in distance. (SKC)

Tested infants of six to eight months and children of 5.5 years for their discrimination of silent intervals between elements of auditory patterns. Both groups could detect increments, and the context of a temporal increment influenced its detectability. (SKC)

Three experiments investigated the ability of seven-month-olds to categorize the facial expressions of happiness, fear, and surprise, which were depicted by degrees of intensity. Happiness could be distinguished in mild and extreme forms, but fear was difficult to discriminate from happiness or surprise. (SKC)

Examined eight-month-olds' ability to remember the location of a hidden object, using a nonsearch task. Results suggested that the infants remembered the object's location, and were surprised when it had been moved. (SKC)

Four experiments investigated the role of geometric path type in infants' ability to make spatial inferences about the location of a hidden object after the infants had been moved. In all but the fourth experiment, infants were able to retrieve the objects unless objects were located behind the infants. (SKC)

Used a set of six measures to analyze both the products and process of spatial grouping in 40 children between the ages of 18 and 42 months. Results confirmed and elaborated on previously established developmental findings for each measure. (SKC)

Investigated preschoolers' understanding of two distance principles: the direct-indirect and the same-plus principle. Children did better on tasks relevant to the principles than on principle-irrelevant tasks. Concluded that even young children conceive of distance as fixed intervals. (SKC)

Tested the hypothesis that some attempts to reduce the performance demands of concrete Piagetian operational tasks may have allowed children to solve those tasks with preoperational functions. Administered two previously used versions of the transitivity task for length and weight to 120 children six- to nine-years-old. The second version was…

Assessed a one-month, home-based intervention, designed to optimize parental reading of picture books to young children. Children in the experimental group scored significantly higher than control children on posttests of expressive language ability and had a higher mean length of utterance and a lower frequency of single words. (SKC)

Presents a framework for relating degree of bilingualism to aspects of linguistic awareness. Found the more fully bilingual a child was, the better his or her performance on metalinguistic tasks requiring high levels of analysis of knowledge. (SKC)

Examined the influence of familiarity with peers on social cognition in second and fourth grade children who segmented a videotape of the behavioral stream of a peer. Children given prior information broke the stream into fewer, larger segments. Prior information affected fourth graders more than second graders. (SKC)

Examined developmental changes in the influence of social goals on cooperative and competitive behavior in children between six and 13 years who played a game with a peer. Tendencies to engage in cooperative and combative moves and to use attentional words varied interactively with age, sex, order of instructions, instructions, and trials. (SKC)

Examined the role of cognitive mediators in identifying differences in aggression of incarcerated and nonincarcerated male and female adolescents. Found hostile-aggressive individuals more likely to hold beliefs supporting aggression and to be unconcerned about the consequences of violent actions. (SKC)

Evaluates the relations between visual attention received from peers and social competence in young preschool children by correlating Q-sort scores for social competence with visual regard. Results suggest that visual regard from peers may index general social visibility rather than social competence. (SKC)