This volume sheds empirical light on Complex Dynamic Systems Theory by providing analyses of two longitudinal, interactional datasets. The individual analyses traverse the domains of morphosyntax, semantics, pragmatics and discourse. As a whole, the collection demonstrates the impact of the ecosystem on individuals' use of language.

This book presents an array of new research on several current theoretical debates in the field of SLA. The studies address questions relating to ultimate attainment, first language transfer, universal properties of SLA, processing and second language (L2) grammar, and explore a number of grammatical features of the L2.

This book unites studies on second language acquisition and interculturality in a study abroad context, providing timely perspectives on research in each area while also exploring the interface between them. Chapters highlight innovative themes such as social networks, input matters, learner identities and study abroad in lingua franca contexts.

This accessible guide to Complex Dynamic Systems Theory (CDST) research presents practical methods and templates for how applied linguistics researchers can design and conduct research using the CDST framework and equips readers with the knowledge to ensure compatibility between empirical research designs and the theoretical tenets of complexity.