This paper presents a model of second language acquisition based on the social‐psychology of acculturation. The model maintains that certain social and psychological variables cluster into a single variable, acculturation. The model predicts that learners will acquire the target language to the degree they acculturate to the target language group. Six studies that, in various, ways seek to test the Acculturation Model are reviewed and evaluated. Technical problems that affect such research are discussed, and the current status of the model is assessed.

The extent to which form-focused instruction contributes to the acquisition of second language implicit knowledge is controversial. Whereas Krashen (1993) has argued that the effects of FFI on acquisition are peripheral, N. Ellis (this issue) sees FFI as facilitative and even necessary for developing implicit L2 knowledge. This article examines the role of FFI in developing implicit knowledge by reviewing 11 studies that have examined the effect of FFI on learners' free production. The review suggests that FFI can contribute to the acquisition of implicit knowledge and points to two variables that appear to influence its success—the choice of the target structure and the extent of the instruction. FFI involving extensive instruction directed at “simple” structures was more likely to succeed. However, limited instruction directed at complex structures also proved effective, provided that the target structures are readily available in noninstructional input

A first language (also native language, mother tongue, arterial language, or L1) is the language(s) a person has learned from birth[1] or within the critical period, or that a person speaks the best and so is often the basis for sociolinguistic identity. In some countries, the terms native language or mother tongue refer to the language of one's ethnic group