Bullying in schools: Lessons from two decades of research

Bullying is described as aggressive behavior normally characterized by repe tition and imbalance of power, It may be considered as a normative in many group settings, but socially unacceptable within the ethos of a democratic society, The history of research and intervention on bullying in schools du ring the past two decades is summarized, School bullying emerges as an inte rnational issue, and we have increasing knowledge of its nature and effects , There is also growing experience of the effectiveness of a range of schoo l-based intervention strategies, These issues are discussed in relation to the 10 articles from 9 countries that constitute the remainder of this Spec ial Issue on Bullying in Schools, (C) 2000 Wiley-Liss, Inc.