Describes a study which examined the relationship between mother's speech and the rate of child syntax growth for 22 two-and-a-half-year-old children. Results suggest that linguistic experience does contribute to syntax development but that the relation between linguistic input and language growth is different for different domains of language and…

Examines the relationship between adult recasts of child utterances and the child's acquisition of syntactic structures. Results indicate that maternal recasts of specific morphemes were related to the acquisition of those specific morphemes during certain developmental periods, whereas other grammatical morphemes were facilitated by expansions…