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.

Phil Hiver is Assistant Professor at Florida State University, USA. His research interests include instructed language learning and the role of psycho-social factors in second language teaching and learning. He is the co-editor (with Sarah Mercer and Ali H. Al-Hoorie) of Engagement in the Second Language Classroom (Multilingual Matters, forthcoming).