Dr. Lewis is a Professor in the Department of Psychology at the University of Guelph.

Dr. Hasking is a Distinguished Professor of Psychology at Curtin University.

Dr. Washburn is a Professor and the Chief of Psychology in the Department of Psychiatry and Behavioral Sciences at Northwestern University.

Dr. Gratz is a writer, clinician, and an affiliated faculty member at the University of Toledo.

Dr. Heath is a Professor at McGill University in the Department of Educational & Counselling Psychology.

Dr. Claes is a Professor at Ku Leuven in the Faculty of Psychology and Educational Sciences.

Dr. Whitlock is a developmental psychologist and public health specialist specializing in the mental health of adolescents and young people.

Dr. Plener is a Professor at the Medical University of Vienna where he is Head of the Department of Child and Adolescent Psychiatry.

Dr. Walsh is a Clinical Social Worker and author.

Dr. Muehlenkamp is a Professor at the University of Wisconsin - Eau Claire.