When children apologize, they accept responsibility for wrongdoings and act to reconcile social relationships. Apologies to siblings were coded in 40 families that were observed for 9 h when children were 2 1/2 and 4 1/2 years old, and again 2 years later. We found that sibling apologies were rare, generally simple in form, and more frequent after…

The ability to locate objects in the environment is adaptively important for mobile organisms. Research on location coding reveals that even toddlers have considerable spatial skill. Important information has been obtained using a disorientation task in which children watch a target object being hidden and are then blindfolded and rotated so they…

In our recent paper, "Semantic generality, input frequency and the acquisition of syntax" ("Journal of Child Language" 31, 61-99), we presented data from two-year-old children to examine the question of whether the semantic generality of verbs contributed to their ease and stage of acquisition over and above the effects of their typically high…

A study of 41 toddlers (ages 18-25 months) with hearing impairments and their hearing mothers and 54 typical toddlers and their hearing mothers, investigated whether the development of a normal mother-child relationship is disrupted by the inability of the child to understand his/her mother's normal means of communication. The study also explored…