Phil Hiver is an 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.

Ali H. Al-Hoorie is an Assistant Professor at the English Language and Preparatory Year Institute, Royal Commission for Jubail and Yanbu, Saudi Arabia. His research interests include language motivation, complexity theory and advanced research methods in applied linguistics.

Sarah Mercer is Professor of Foreign Language Teaching at the University of Graz, Austria, where she is Head of ELT methodology. Her research interests include all aspects of the psychology surrounding the foreign language learning experience.