Scholars of language development have long been challenged to understand the development of functional categories. Traditionally, it was assumed that children's language development initially relies on lexical elements, while functional elements become accessible only at later periods; and that it is lexical growth which bootstraps grammatical…

This review of research into the acquisition of grammatical coordination (i.e., the use of conjunctions) pulls together both English language and cross-linguistic data. Although the importance of pragmatic factors in language acquisition is not denied, the data make it clear that grammatical factors seem to play a significant role in the…

In four studies, 60 two- and three-year-olds were studied in an elicited imitation task wherein the linguistic form of sentences was varied according to conjunction structure and pattern of redundancy deletion in conjunction reduction. Both factors were found to affect imitation. (Author/RM)

This paper examines two- to five-year-old children's knowledge of inversion in English yes/no questions through a new experimental study. It challenges the view that the syntax for inversion develops slowly in child English and tests the hypothesis that grammatical competence for inversion is present from the earliest testable ages of the child's…