To ensure transparency the authors wish to include the following additional disclosure statement that was not included in the final publication. The Triple P-Positive Parenting Program is owned by The University of Queensland. The University, through its technology transfer company Uniquest Pty Ltd., has licensed Triple P International Pty Ltd to disseminate the program worldwide. Royalties stemming from this dissemination work are distributed to the Faculty of Health and Behavioural Sciences, the School of Psychology, Parenting and Family Support Centre, and contributory authors in accordance with the University's intellectual property policy. No author has any share or ownership in Triple P International. Matthew Sanders is the founder and lead author of the Triple P-Positive Parenting Program, and is a consultant to Triple P International. Trevor Mazzucchelli is a co-author of Stepping Stones Triple P.