This article discusses the implications of "multicompetence" (Cook, 1991), defined as an individual's knowledge of more than one language, for language assessment. The growing psycholinguistic evidence highlighting variability in native speaker performance as a result of multicompetence is reviewed, evidence that further questions the validity of…

Explores the usefulness of a typology of contact mechanisms for one type of contact setting: that of a typical immigrant language, in this case the variety of Turkish that is spoken in the Netherlands. Examines the relevance of insertional code switching to the genesis of mixed languages--Dutch and Turkish. (Author/VWL)