They did n ' t agree with the criterion of bullying in repetivity and unprovocative . and they believed a new criterion noted by rigby . those students involved in bullying could be classified into four categories 儿童把卷入欺负行为的儿童分为4类，消极的受害类和激惹的受害类，焦虑的欺负类和自信的欺负类。
