This article constitutes the first empirical assessment of methodological quality in second language acquisition (SLA). We surveyed a corpus of 174 studies (N = 7,951) within the tradition of research on second-language interaction, one of the longest and most influential traditions of inquiry in SLA. Each report was coded for methodological…

Language is a complex adaptive system: Speakers are agents who interact with each other, and their past and current interactions feed into speakers' future behavior in complex ways. In this article, we describe the social cognitive linguistic basis for this analysis of language and a mathematical model developed in collaboration between…

Many millenia ago, a number of genetic changes endowed the human species with the remarkable capacity: (1) to construct highly complex systems of expressions--human languages; (2) to copy such systems, once created, from other members of the species; and (3) to use them for communicative and perhaps other purposes. This capacity is not uniform; it…

Language has a fundamentally social function. Processes of human interaction along with domain-general cognitive processes shape the structure and knowledge of language. Recent research in the cognitive sciences has demonstrated that patterns of use strongly affect how language is acquired, is used, and changes. These processes are not independent…

Reports on a two-phase study of second-language learner use of listener feedback, particularly their use of clarification questions in native speaker-nonnative speaker discourse. (29 references) (JL)

Reviews research on the social interaction and negotiation of second language (L2) learners and their interlocutors. This research illustrates ways in which negotiation contributes to conditions, processes, and outcomes of L2 learning by facilitating learners' comprehension and structural segmentation of L2 input, access to lexical form and…