The state of the art of research in second language acquisition is reviewed. A framework is first established for the examination of second language learning. The concept of proficiency is addressed with respect to its theoretical basis, rating scales, formal tests, and interlanguage studies. The social context of second language acquisition is…

Addresses recent advances in research and theory that relate to language shift in early childhood, cognitive, and academic consequences of bilingualism and second-language learning, and theoretical models for conceptualizing the development of bilingualism and second-language learning. Contains annotated bibliography. (47 references) (LET)