Shedding Empirical Light on Complex Dynamic System Theory

We recently published Profiling Learner Language as a Dynamic System edited by ZhaoHong Han. In this post the editor explains why the book is important.

Profiling Learner Language as a Dynamic System was born out of an intense interest in contributing to the empirical basis in SLA of the new theoretical paradigm now known as Complex Dynamic System Theory (CDST) (de Bot, 2017; Larsen-Freeman, 2017; Lourdes & Han, 2017). Much of the work so far on CDST has remained rhetorical, and while a concerted effort has been made to push for empirical understandings, methodological insights are as yet incipient, though broad pointers are on the horizon. For example, the study needs to be longitudinal, and should focus on individual learners.

Many of the extant empirical studies have, however, tended to narrowly focus on one or a small number of linguistic elements, taking, a priori, each as part of a (sub)system, producing findings that are limited in scope and do not convincingly demonstrate, in one breath, the ‘complex,’ ‘dynamic,’ and ‘systemic’ nature of learner language.

This book seeks to help fill some of these gaps, by subjecting individuals’ systems to multiple lenses. Recognizing that revealing these properties necessitates a much larger undertaking than an individual study, the book has its five main chapters each target a particular aspect of interlanguage, traversing the domains of morpho-syntax, semantics, pragmatics, and discourse. The uniqueness of this approach lies also in employing the same longitudinal corpus involving two dyads interacting over a shared course requirement. The data analyses tracked both within-dyad and between-dyad similarities and differences, yielding both general patterns and idiosyncrasies. Together, the five sets of data analyses shed light on, and even go beyond, core claims of CDST.

For more information about this book please see our website.


If you found this interesting, you might also like Motivational Dynamics in Language Learning edited by Zoltán Dörnyei, Peter D. MacIntyre and Alastair Henry.

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