Describes adjustments in speech patterns made by two- and three-year-olds when talking to their 14-month-old siblings and compares these changes with those made by mothers addressing their babies. Individual differences between the children indicate two types of influence on the adjustments made--pragmatic and emotional. (EKN)

A study was undertaken to separate elements of maternal speech heavily influenced by the children's language levels from those representing the mothers' consistent style or strategy for "teaching" language. A striking similarity was found between speech mothers used with their daughters and that used with their daughters' friends. (MSE)

Words artificially isolated from 12 parents' speech to their children aged 1;10-3;0 were significantly less intelligible to adult listeners than words originally spoken to an adult. While parents did not adjust the clarity of words, their speech was more redundant in anticipation of the children's comprehension. Research implications are…