This article reports a meta-analysis of 42 experiments in 33 published studies involving processing instruction (PI) and production-based instruction (PB) used in the PI studies. The comparative effectiveness of PI and PB showed that although PI was more effective than PB for developing receptive knowledge, PB was just as effective as PI for…

Reviews the various definitions of communicative competence, and argues for a view of communicative competence as language use, a lesser but more readily achievable ambition for both theory and pedagogy. (Author/CB)

Argues that the teachability of language is constrained by what the learner is ready to acquire. The Teachability Hypothesis, based on this constraint, uses a speech processing approach to explain second language acquisition and contains important psycholinguistic information on which second language teaching methods could be based. (Author/CB)

Attempts to clarify the notion of language competence and draws on its relevance to language teaching practices. Language use competence may involve the adjustment of pre-assembled and memorized patterns and not so much the generation of expressions by direct reference to rules. (Author/CB)

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…

Reviews language attrition research as well as analyzes characteristics of acquisition and attrition of first- and second-language skills. The relationship between language and memory is also discussed. Research results are summarized in appendix. (Author/LMO)

Examination of existing empirical and theoretical literature suggests there is no conclusive support for the existence of a critical period for human speech learning. Assumption of a critical period may inhibit the search for testable hypotheses concerning observed adult-child differences in second language production. (Author/LMO)