Piaget's research on the processes and products of cognitive and representational development in early childhood is employed to outline the bases of early language development. The processes of assimilation and accommodation, leading to horizontal decalage; empirical and reflective abstraction, resulting in schemas and schemes; as well as…

Data on the complexity of relative clause formation in children indicate that right embedding precedes central embedding in development. Previous research on the subject argues that configurations where coreferential NP's function as subjects are less complex than configurations where coreferential NP's function as objects. It appears that the…

Two experiments indicating that children's linguistic generalizational biases change from a semantically-based system to a syntactical-structural system provide evidence for a semantic-relational bias in children's early grammars and support the notion that children's generalizational biases shift from a semantic-relational basis to a…

This report examines the question of whether grammatical rules are globally learned and applied. It also attempts to determine the underlying word order in English as well as the developmental sequence of the acquisition of Aux. A sentence-repetition test using positive statements, positive questions, and negative questions was administered to 30…

The question is addressed whether a child would develop a communication system if a conventional linguistic model is absent. Six congenitally deaf children, who were not exposed to Sign Language, were observed and videotaped at play in their homes at intervals of one to three months. The children ranged in age from 1 year, 5 months to 4 years, 1…

This project seeking to develop sound methodological research techniques for second-language is based on an initial pilot study which (1) identified and classifies the utterances of a child learning Spanish as a second language, and (2) determines whether there are any significant trends in the observed order of learning of kernels and transformed…