Idealization plays a fundamental role in scientific inquiry. This article examines the case for maintaining the claim that the second language acquisition (SLA) of grammatical structures such as negation manifests identifiable stages of acquisition. It proposes that, while research has demonstrated the need for de-idealization, there is no need to…

This study applied systematic meta-analytic procedures to summarize findings from experimental and quasi-experimental investigations into the effectiveness of using the tools and techniques of corpus linguistics for second language learning or use, here referred to as data-driven learning (DDL). Analysis of 64 separate studies representing 88…

In bilinguals and second language learners, the native (L1) and nonnative (L2) languages coexist and interact. The L1 influences L2 production via forward transfer, as is seen with foreign accents. However, language transfer is bidirectional: even brief experience with an L2 can affect L1 production, via backward transfer. Here, we review the…

Demonstrates the operation of the universal principles of lexical simplification, through an examination of its use in translation; second language learning and teaching, and simplified reading texts. (Author/AM)

Examines the role of "routines" and grammatical patterns in first and second language acquisition by children and adults, specifically with regard to syntactic structures. (Author/AM)

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…