This paper argues that it is necessary for researchers and test developers in the area of language performance testing to have a clear understanding of the role of underlying performance capacities in second language performance. It critically evaluates the models proposed by Hymes, Canale and Swain, and Bachman. (71 references) (MDM)

Describes attempts to formalize and characterize a theory of communicative competence, focusing on the advantages of a preference model (which identifies and grades learning variables in order of importance) and of models developed on the premise of parallel distributed processing (which suggest that such rule-based processing are in fact gross…