Six autistic children, age 3-6, and 6 children with Down syndrome were followed over a period of 12-26 months. Autistic children followed the same general developmental path as the Down syndrome children in the acquisition of grammatical and lexical aspects of language. (Author/JDD)

Vowel production of a 14-month-old girl was studied over a 6-month period. Sixty percent of the vowels were produced correctly. A complex pattern of vowel preferences and errors was partially related to prespeech babbling preferences and strongly related to word structure variables (monosyllabic versus disyllabic). (Author/JDD)

Children with language delays often manifest low rates of self-initiated expressive language, particularly in school settings. Children with mild to moderate language delays appear to develop this pattern as a means of coping with situations in which they believe they are unable to perform or may perform poorly. Interactive language training…

A comparison is presented of a mother's language to her Down Syndrome two-year-old and his normally developing twin. When interacting with the Down Syndrome twin, the mother used shorter mean length of utterance, greater type-token ratio, more confirmations, more verbal directives, fewer yes-no and true questions, and more directive questions.…

The goal of instruction in mainstream dialect (MD) acquisition should be to expand students' oral communication skills to include skills needed for academic and economic success, thereby making alternate dialect speakers bidialectic. This implies recognizing students' home dialect as a valid linguistic system and a part of their identity. Although…