Examined thresholds for two aspects of child care: adult-child ratio and group size. Investigated associations among different levels of these variables and with quality of care and children's social development. Findings suggest that meeting licensing standards for ratios and groups has a positive effect on ratings of the quality of care provided…

Second and fourth graders were classified according to their knowledge of soccer and their IQ and given two sort-recall tasks. Results demonstrated that the knowledge base played an important role in children's memory. Domain knowledge could not fully eliminate the effects of IQ on sort-recall tasks using domain-related materials. (GLR)

Three studies investigated the degree to which young children understand that the acquisition of certain types of knowledge depends on the modality of the sensory experience involved. Results suggest that an appreciation of the different types of knowledge our senses can provide develops between the ages of three and five years. (GLR)

Examined Korean second and third graders' understanding of multidigit addition and subtraction. Korean children showed exceptional competence in multidigit addition and subtraction, and their solutions were based on quantitative understanding of multidigit numbers. Results are compared to the literature on the performance and conceptual structures…

One experiment determined that the minimum angle at which infants can discriminate 2 sound presentations decreases substantially toward 48 weeks of age. In 3 succeeding experiments, infants aged 16, 20, and 28 weeks were able to discriminate sounds presented to each ear between 50 and 75 microseconds apart. (BC)

Observed the reactions of 3.5-month-old infants looking at a carrot that should have but did not appear in a window after passing behind a screen. The results of this and several similar experiments indicated that 3.5-month-old infants are able to represent and reason about hidden objects. (BC)

Four experiments tested four month olds on visual discrimination tasks. As the time allotted to solve these problems was shortened, infants who looked at stimuli for a short amount of time performed better than other infants, indicating that performance superiority was attributable to speed of processing. (BC)

In two experiments, preschool children and adults were asked to judge which way an equilateral triangle was pointing under several contextual conditions. Results indicated that children and adults attended to both global and local levels of a pattern. (BC)

Postural sway was measured in 12- to 14-month-old infants and adults while they were standing in the light and dark. Infants did not sway significantly more in the dark than in the light, whereas adults did. These findings indicate that early regulation of standing posture does not depend on visual information. (Author)

The tendency of two year olds to select an unfamiliar over a familiar object was less when they were asked to choose between items than to identify a referent for an unfamiliar name. This result suggests that children have both an attraction for novel items and a tendency to honor lexical principles. (BC)

Four experiments tested three to six year olds' and adults' understanding of animals' growth changes. All subjects understood that animals get larger with age. Older children and adults, but not younger children, allowed for dramatic changes in the size and shape of animals over the animals' lifespans. (BC)

Interviewed 99 first and second graders in the fall and spring. Results indicated that children needed to understand the concepts of either the irreversibility or inevitability of death before understanding the concepts of cessation of life functions and causes of death. Children's understanding of human and animal death developed differently. (BC)

In one experiment, infants and children were accurate in their judgments about the knowledge of a baby, child, and adult. In two further experiments, children reported that an infant, child, or adult observer would be able to identify an object from an identifiable or nondescript part of the object. (BC)

A total of 50 children were observed at home at 33 months of age and then tested at 40 months on affective labeling, perspective taking, and false belief tasks. Individual differences at 40 months were associated with family discourse about feelings and causality at 33 months, verbal fluency of mother and child, and sibling cooperation. (BC)

Children of 5, 9, and 13 years of age were asked to allocate resources in hypothetical situations in which norms of equity, equality, or need were applicable. Young children were insensitive to the contextual information, whereas older children appropriately tailored their decisions to the situation. (BC)