Three experiments explored the significance of deontic properties (involving rights and obligations) in representations of social categories. Preschool-aged children (M = 4.8), young school-aged children (M = 8.2), and adults judged the centrality of behavioral, psychological, and deontic properties for both familiar (Experiments 1 and 2, Ns = 50…

Children at 12, 18, 24, and 30 months of age were observed in same-age, same-sex dyads while they attempted to solve a simple cooperation problem. Each child was given an elicited imitation task that was used to index decentration. Although no dyad of 12 month olds could cooperate, 24 and 30 month olds could coordinate behavior quickly and…

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)

An assessment of the occurrence of three forms of humor (responsive, productive, and hostile) during the activities of 30 nursery school children. The three humor forms were not significantly correlated. The relation of the ongoing activities and the pattern of humor exhibited, along with the significant sex differences in humor expression are…

Examined four and seven year olds' recall of standard features of a repeated event as opposed to features that deviated from that event. Younger children had more difficulty determining which features occurred in the events. Concludes that younger children organize their memory for general and specific event episodes differently than older…

Two studies examined developmental changes in handwriting variability. Results indicated that, between 3 and 5 years, the number of grip patterns that children routinely use declines and the variability associated with pen-surface positioning declines. Older 3-year-olds used an adult grip pattern more often and were less variable in pen-surface…

Used growth curve analysis to describe the development of 186 preschoolers with vision impairments. Found that mental retardation and developmental delay were associated with lower developmental ages and slower growth rates. Visual function of 20/800 or worse was associated with lower developmental ages and slower growth rates in personal-social…

Focused on (1) the effect of mother-child interaction during a problem-solving task on subsequent, independent child performance; and (2) the variability in the division of task responsibilities and maternal regulation of the child as a function of task difficulty, child age, and task component. Participants were 60 three to five year olds and…

Examined children's ability to describe, understand the causes of, and realize the value of three types of pain. Preschoolers, elementary school students, and college students were interviewed using open-ended questions. Although older children had more complex and precise understandings of pain, this pattern differed according to the type of pain…

Investigated the manner in which the temporal order and variability of events influence three and seven year olds' event representation. Children participated in three events: a logical-invariant, a logical-variable, and an arbitrary-invariant event. Both the structure of the event and children's representational capabilities influenced children's…

Results suggest that gender schematization exerts an important influence in early sex-role development and illustrate the utility of a gender schematic approach to early sex-typing phenomena. (RH)

Observations and interviews of 20 middle-class preschoolers and their mothers were conducted to examine the emergence of the personal domain. Found that preschoolers make a conceptual distinction between personal and moral or conventional issues, and that mothers were more likely to negotiate with children over personal than social events. (MDM)

Tested understanding of correspondence on the part of 2.5- to 3.5-year olds who watched a toy hidden in a model and tried to find an analogous toy in a room. Retrieval scores increased with increasing model-room similarity; were higher for older than younger children; and were affected by object and size similarity. (BC)

Examined preschoolers' and second and fifth graders' development of two types of perspective taking: (1) perspective taking based on differences in the information available to two people; and (2) perspective taking based on differences in weighting the same information. (RH)

Examined relationship between mother-child conversational interactions when children were 30, 36, and 42 months old and children's recall of these activities 1 day and 3 weeks later. Found that at all ages, features of activities jointly handled and jointly discussed were remembered better than features jointly handled but discussed by mother only…