In contemporary methodological thinking, replication holds a central place. However, relatively little attention has been paid to replication in the context of complex dynamic systems theory (CDST), perhaps due to uncertainty regarding the epistemology-methodology match between these domains. In this paper, we explore the place of replication in…

The data-rich articles in this special issue invite readers to consider how grammar and multimodality enact social practices. In particular, they propose a reconceptualization of grammar, moving beyond an autonomous system of items and combinatorial rules to demonstrate how grammar is an embodied resource for social interaction. In this…

Agency has attracted considerable attention, especially of late. Nevertheless, perceptions of language learners as nonagentive persist. In this article the Douglas Fir Group's call for a transdisciplinary perspective is heeded in a Complex Dynamic Systems Theory's (CDST) conceptualization of agency. It is suggested that CDST maintains the…

The launching of The Journal for the Psychology of Language Learning is a signal achievement. I begin this commentary by speculating on why it is that the Psychology of Language Learning (PLL) has enjoyed such vigor of late. I expect that one reason is the coming together of a critical mass of researchers and strong leaders over their shared…

Bringing a complex systems perspective to bear on classroom-oriented research challenges researchers to think differently, seeing the classroom ecology as one dynamic system nested in a hierarchy of such systems at different levels of scale, all of which are spatially and temporally situated. This article begins with an introduction to complex…

As applied linguists know very well, how we use language both constructs and reflects our understanding. It is therefore important that we use terms that do justice to our concerns. In this presentation, I suggest that a more apt designation than "multilingual" or "second language acquisition" (SLA) is "multilingual"…

In this plenary address, I suggest that Complexity Theory has the potential to contribute a transdisciplinary theme to applied linguistics. Transdisciplinary themes supersede disciplines and spur new kinds of creative activity (Halliday 2001 [1990]). Investigating complex systems requires researchers to pay attention to system dynamics. Since…

Changes to research methodology motivated by the adoption of a complexity theory perspective on language development are considered. The dynamic, nonlinear, and open nature of complex systems, together with their tendency toward self-organization and interaction across levels and timescales, requires changes in traditional views of the functions…

Responds to a previous article that suggests the second-language-acquisition acquisition field has failed to realize academic respectability. Offers an overview of some of the more positive advances in the discipline. Concludes by calling for a whole systems approach to the study of second language acquisition. (Author/JL)