David Caldwell is a Lecturer in English Language and Literacy in the School of Education at The University of South Australia.
John Walsh is a Senior Lecturer in the Department of Linguistics at the University of Adelaide, Australia.
Elaine W. Vine is a Honorary Research Associate in the School of Linguistics and Applied Language Studies at Victoria University of Wellington, New Zealand.
Jon Jureidini is a child psychiatrist at the Women's and Children's Hospital, Adelaide, Australia.