References to internal states (e.g., thoughts, feelings, and desires) indicate children's appreciation of people's inner worlds. Many children spend time playing video games; however, the nature of children's speech when doing so has received little attention. We investigated the use of internal state language (ISL) as 251 seven-year-olds played…

The two aims of the study were (a) to determine when infants begin to use force intentionally to defend objects to which they might have a claim and (b) to examine the relationship between toddlers' instrumental use of force and their tendencies to make possession claims. Infants' and toddlers' reactions to peers' attempts to take their toys were…

Twelve pairs of previously unacquainted 6-month-old infants were observed in the presence and absence of toys; interactive episodes beginning when an infant touched the peer or a toy held by the peer were examined. Results suggested that young peers influence each other's behavior, but the extent to which they do so depends on situational…

On 2 consecutive days, a total of 96 children were observed in groups of 3, once with scarce and once with ample toy resources. Sharing was affected by the number of toys and availability of duplicate toys. When pressured by peers, one year olds shared more often than did two year olds. (BC)

The distressed vocalizations of six-month-old infants interacting with peers in a playroom were statistically independent of the peer's vocalizations of distress. Absence of toys reliably predicted the extent of the infant's distress, whereas psychomotor development and sex did not. (Author/ DB)