Second language development can be viewed as a complex and dynamic process in which learners follow non-linear trajectories and develop their language over a period of time (Larsen-Freeman, 2006). Intrinsic to the view of Complex Dynamic Systems Theory (CDST), a system is composed of hierarchical, interdependent subcomponents (learner, learner…

From a complex dynamic systems (CDST) perspective, language is understood as a dynamic system comprised of subsystems that change and develop over time in response to learner-internal and -external factors (Verspoor et al., 2008). Accordingly, language development is seen as a process responsive to the dynamic interaction between the learner and…

Language proficiency is multi-componential in nature and, according to many SLA researchers and L2 practitioners, is best captured by the concepts of complexity, accuracy, and fluency (CAF). Two of the three studies reported in this paper adopted the Cognition Hypothesis (Robinson, 2003) as the means to address the question of whether increasing…

The major aim of the current paper is to review and discuss three prevailing approaches to the study of Second Language Acquisition (SLA) since the middle of the twentieth century: Contrastive Analysis (CA, henceforth), Error Analysis (EA) and Interlanguage (IL). It begins with a general overview of how the CA approach was formulated and developed…

Although a growing number of second language acquisition (SLA) studies take linguistic complexity as a dependent variable, the term is still poorly defined and often used with different meanings, thus posing serious problems for research synthesis and knowledge accumulation. This article proposes a simple, coherent view of the construct, which is…

The paper gives an overview of learner corpora and their application to second language learning and teaching. It is proposed that there are four core components in learner corpus research, namely, corpus linguistics expertise, a good background in linguistic theory, knowledge of SLA theory, and a good understanding of foreign language teaching…

Amaral and Roeper (this issue; henceforth A&R) argue that all speakers -- regardless of whether monolingual or bilingual -- have multiple grammars in their mental language representations. They further claim that this simple assumption can explain many things: optionality in second language (L2) language behaviour, multilingualism, language…

Optionality is a central phenomenon in second language acquisition (SLA), for which any adequate theory must account. Amaral and Roeper (this issue; henceforth A&R) offer an appealing approach to it, using Roeper's Multiple Grammars Theory, which was created with first language in mind but which extends very naturally to SLA. They include…

This article clarifies some ideas presented in this issue's keynote article (Amaral and Roeper, this issue) and discusses several issues raised by the contributors' comments on the nature of the Multiple Grammars (MG) theory. One of the key goals of the article is to unequivocally state that MG is not a parametric theory and that its…

The way we ask for something, or "request," is hardly the same across all contexts. The degree to which we show politeness in these instances is closely related to a number of contextual factors (Brown & Levinson, 1987), manifested in the linguistic features that we employ (Blum-Kulka, House & Kasper, 1989; Searle, 1975).…

This paper presents an extension of the Multiple Grammars Theory (Roeper, 1999) to provide a formal mechanism that can serve as a generative-based alternative to current descriptive models of interlanguage. The theory extends historical work by Kroch and Taylor (1997), and has been taken into a computational direction by Yang (2003). The proposal…

For learners to communicate efficiently in the L2, they must avoid pragmatic failure. In many cases, teachers' praxis centres on the learner's performance in the L2 or his role as a speaker, which neglects the importance of his role as interpreter of utterances. Assuming that, as hearers, learners also have a responsibility to avoid…

There has been considerable research that investigates whether reflexives in interlanguage grammars (ILGs) are constrained by Principle A of the Binding Theory. These earlier studies focused on the role of sentence type, including both finite and non-finite test sentences; they did not examine the role of antecedent type, namely distinguishing…

In the tradition of work by Shaughnessy (1977) and Bartholomae (1980) applying concepts from second language acquisition research to developing writing, we explore the commonalities of L1 and L2 writers on the specific level of linguistic choices needed to order information within and across sentence boundaries. We propose that many of the kinds…

One branch of research in second language acquisition has investigated the ways a learner's interlanguage (IL) varies between tasks. IL variation research has examined linguistic, psycholinguistic, and sociolinguistic constraints, and has revealed much about this phenomenon. An additional potentially-useful perspective that has, to this point,…