Temporal stability of play behavior and its consistency among toys differing in complexity was assessed by observing 40 eight-month-old infants. The relationship of stability of play to temperament was examined. Findings support the idea that behavioral consistency in infancy is similar to that reported for older children. (RH)

The behavioral dynamics of three different types of early mother-infant interactions were examined. Mothers were instructed to play with, imitate, and hold the attention of their infants. Frequency of vocalization, gaze direction, and smiling by both interactants, tactile play by the mother, and crying by the infant were recorded. (PCB)

Two studies were conducted to (1) develop measure of infants' executive capacity, defined as difference between infants' most sophisticated level of functioning displayed first in free and then in elicited play and (2) to test several hypotheses regarding relationship between these performance and competence measures of child functioning and home…

The purpose of this study was to investigate the alternative forms of young children's help-seeking in free play and problem-solving contexts. A total of 72 children aged 18 (N=36) and 24 (N=36) months were observed in pairs in free play and problem-solving settings, as well as in different social contexts--same-age versus mixed-age pairing. Both…

The concurrent and predictive relations of sensorimotor behavior and play to language in the second year were assessed among 19 preterm and 20 full-term infants tested at 13 1/2 and 22 months of age. Numerous associations between play and language were identified; sensorimotor behavior and language in the same age period were relatively loosely…

Combinatorial abilities in language and elicited symbolic play were compared in a longitudinal study of 30 children at 20 and 28 months. In addition, multivariate analyses were used to assess the stability of individual differences. Generally, different symbolic play variables contributed unique explained variance to different language variables.…

Mothers' and fathers' socialization of one- and two-year-old children's sex-typed play behaviors was examined. For each parent, dyadic interactions were videotaped in the home on two occasions six months apart. Results are discussed in terms of implications for the social learning account of sex-role development. (Author/RH)

In a longitudinal study, infants 6 to 18 months of age were observed in their homes playing with their mothers and with peers to determine how they coordinated attention to people and objects. Person engagement declined with age, while coordinated joint engagement increased; both passive and coordinated joint engagement were much more likely when…

Home movies of eight normal children and eight children later diagnosed as autistic were analyzed based on: (1) Piagetian criteria of sensorimotor development and semiotic functioning, and (2) developmental levels of action competencies. The age range covered was 4 to 42 months of age. The analysis showed that, from the second year of life, timing…