In this longitudinal investigation of the emerging grammar of seven children, differences in linguistic acquisition were observed. Analyses revealed two distinct styles of syntactic acquisition that appeared to be sex- and speed-related with specific ties to particular utterance types and grammatical-relational specification. (Author/RM)

By age two, a child begins to form complex sentences by joining two or more sentences or by embedding one sentence into another. Formation of conjoined structures is a simpler process and emerges earlier than that of embedding structures. This paper attempts to answer the following questions: (1) Do children produce or understand embedding…

The acquisition of rules for formulating causative verbs was studied with children over a period of a few years. Most of the data is based on the spontaneous speech of the author's two daughters, from age 2;6 to 6;2 and from age 2;4 to 3;11. It was hypothesized that there are at least two prerequisites for the child's formulation of a general rule…

This is a longitudinal study of a child's acquisition of Mandarin phonology between the ages of 1;2 and 2;8. During this period, the child was much less verbal than many children reported in other child phonology studies. The study consists of two parts. The first part is a description of the child's "proto-language," in which he used…

This investigation studied the development of the form and function of negative sentences, and how it relates to the input on negation that children receive from their parents. The data came from three children: two from a previous study (Bellugi) and one the son of the investigators. A detailed analysis was carried out of the syntactic form and…

In any successful conversation, a speaker must select both what is said and how it is said on the basis of various estimates of the listener's abilities, knowledge and interests. Most research on linguistic input to children has focused on the tendency of speakers to simplify their speech for the younger listener. Little attention has been paid to…

The ability of children at different ages to distinguish instructions to "ask" from instructions to "tell" and the types of structures used to express these directives were studied. Subjects were 120 children, aged 2 years 6 months to 6 years 6 months. Children were instructed to either ask or tell an adult or another child to give them puzzle…