The aim of this study was to investigate the way in which bullies, victims, bully/victims, and those not involved process social information. A peer nomination measure of bullying and victimization was administered twice over an interval of one year. The sample consisted of 236 (126 girls and 110 boys) children at the beginning of the study (T1) and 242 children one year later (T2) (mean age: 8 years). To test how children responded when provoked, both spontaneously and after prompting, we used provocation scenarios, and to test their attributional interpretations we used ambiguous scenarios. The results showed that children not involved in bullying responded in an assertive way to provocation more often than bullies and victims, but not more than bully/victims. In general, aggressive answers diminished after prompting and irrelevant answers increased. Appealing for the help of an adult or a peer was the strategy most often chosen. When the intent of the perpetrator was ambiguous, bully/ victims attributed more blame, were angrier, and would retaliate more than those not involved. Partly similar results were obtained when stably involved children were compared with those unstably involved. Suggestions for intervention are presented.The subject of bullying has become a focus of attention for researchers all over the world. Bullying is a negative, intentional behavior (physical, verbal or psychological harassment) displayed by children towards their peers. It is repeated over time and implies an imbalance of power. Olweus [1978, 1993], who may be considered a pioneer in this field, was the first to devote scientific attention to this type of aggression and to demonstrate the consequences for both bullies and victims. His example has since been followed by numerous researchers from different countries and continents [cf.