Ronnel B. King is an Associate Professor in the Faculty of Education, The Chinese University of Hong Kong.Herbert W. Marsh is an "ISI highly cited researcher" with 800+ publications, 150,000+citations, and a Google Scholar H-index = 193.Rhonda G. Craven (PhD, BA (Hons), University Medal, Dip Teach) is the inaugural Director of The Institute for Positive Psychology and Education at the Australian Catholic University.Theresa Dicke is the Educational and Developmental Psychology Program Leader at the Institute for Positive Psychology and Education (IPPE), Australian Catholic University.Frédéric Guay is a professor of Measurement and Evaluation at Université Laval and the chairholder of the Canada research chair on motivation, perseverance, and school success.