Developmental Trajectories of Bullying and Social Dominance in Youth 1 Albert Reijntjes 1 Marjolijn Vermande 1 Frits A. Goossens 2 Tjeert Olthof 2 Rens van de Schoot 1 Liesbeth Aleva 1 Matty van der Meulen 3 1 Utrecht University, the Netherlands 2 VU University Amsterdam, the Netherlands 3 Groningen University, the Netherlands Address correspondence to Dr. Albert Reijntjes, Research Centre Psychosocial Development in Context, Utrecht University, Heidelberglaan 1, P.O. Box 80140, 3508 TC, Utrecht, the Netherlands, e-mail: a.h.a.reijntjes@uu.nl This research was funded by a grant (431-09-030) from the Netherlands Organization for Scientific Research (NWO) awarded to Dr. Goossens and Dr. Vermande. 1 Paper accepted for publication in Child Abuse & Neglect