Proposes that phonological development involves the three fundamental processes of perception, organization and production. Acquisition proceeds by the suppression of natural phonological processes in a systematic fashion. Processes slide through a child's system, appearing first as constraints on perception, and later on organization and…

A study made to examine the development in production of the English verbal auxiliary and copula (VAC) "to be" compared a group of children with language dysfunction and a group of normal children. Two purposes were to see whether developmental differences are qualitative or quantitative and to calculate the importance of the VAC in language…

Two studies were conducted to discover possible patterns in question acquisition. For the production study, questions were collected from 22 children aged two to eleven. In the comprehension study, 100 children, aged three to five, were tested. The test controlled syntax and vocabulary and varied specific "wh-" question-words. (Author/RM)

Research was conducted to study systematically the comprehension and production of the pronouns "he, she, him, her" in the language of normal and linguistically deviant children. The purposes of the study were to: observe the manner in which normal children comprehend and produce these four pronouns, in terms of both their use and their…