David B. Zandvliet, Ph.D. (1999), is an Associate Professor at Simon Fraser University, Vancouver, Canada. An experienced researcher, he has published and presented widely on the topic of learning environments. His interests lie in the areas of science, and environmental education.
Barry J. Fraser, Ph.D. (1976), is a John Curtin Distinguished Professor at Curtin University, Perth, Australia. Widely considered a seminal thinker around research on students' psychosocial environment perceptions, his main research interests include science education, learning environments and educational evaluation.