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Prinz, Philip M.; Prinz, Elisabeth A. – Sign Language Studies, 1981
Studies the simultaneous language development in American Sign Language and spoken English by a hearing girl. Findings show: (1) a mixture of oral and manual babbling, (2) a code-switching ability across modalities, and (3) a single syntactic system incorporating rules from both languages but with two separate lexicons. (Author/PJM)
Descriptors: American Sign Language, Bilingualism, Child Language, Code Switching (Language)

Prinz, Philip M.; Prinz, Elisabeth A. – Sign Language Studies, 1979
Reports on an experiment describing the lexical development of a hearing child with a deaf mother and hearing father. Data confirm previous findings that (1) sign emerges before spoken word, (2) acquisition stages are similar in ASL and spoken English, and (3) the child initially develops one lexical system. (Author/AM)
Descriptors: American Sign Language, Child Language, English, Language Acquisition

Daniels, Marilyn – Sign Language Studies, 1994
Some 76 hearing children in prekindergarten classes, half receiving sign instruction and half not, were tested on English vocabulary acquisition. Children who received the sign instruction scored significantly higher on the Peabody Picture Vocabulary Test than children receiving sign instruction. (Contains 15 references.) (Author/LB)
Descriptors: American Sign Language, Child Language, Communicative Competence (Languages), Comparative Analysis