The study summarized in this paper deals with the grammatical analysis of the spontaneous speech of approximately 150 children who are classified as mentally disabled; educable (I.Q. range 50-80). The performance of these mentally disadvantaged children is compared with the performance of 200 normally developing children by using a clinical…

Paralinguistic and kinesic expression begin at birth and are essential to the development of language. Rhythm, for example, a suprasegmental event, appears to be present at birth or prior to birth. The relationship of physiology to communication is evident in the observations of extra-linguistic aspects of communication, such as movement, the use…

This article hypothesizes that language repetition of young children (in the sense used by Kobashigawa and Snow) does not help language acquisition. The evidence comes from the results of a prior study in which no indication was found that mothers who repeat themselves a great deal have children who acquire language more quickly. However,…