This article addresses the special challenges associated with collecting longitudinal samples of the spontaneous sign language and spoken language production by young bimodal bilingual children. We discuss the methods used in our study of children in the United States and Brazil. Since one of our goals is to observe both sign language and speech,…

Reports on a study which followed the language development of a hearing son of deaf parents from his seventeenth month to twenty-third month. Various aspects of the child's language acquisition in sign and speech are described, as is his early ability to alternate languages (sign and speech) according to addressee. (SED)

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)