Peter Hassmén is Professor of Psychology in the School of Health and Human Sciences, Southern Cross University, Australia. He has taught widely across Sport and Exercise Psychology and published extensively using both quantitative and qualitative research methods.Richard Keegan is Assistant Professor of Sport and Exercise Science in the Faculty of Health, University of Canberra, Australia. He also works as a Sport Psychologist, balancing his applied work with research, as well as teaching Sport and Exercise Psychology both at the under- and postgraduate level. David Piggott is Principal Lecturer in Sports Coaching in the School of Sport at Leeds Beckett University, UK. He has taught and published widely in Sports Coaching, Sport Psychology and Sociology and has a keen interest in the Philosophy of Science and Sociology of Knowledge.