Child Bully Assessment View Calculator The Stop Bullying Now campaign defines bullying as 'aggressive behavior that is intentional, repeated over time, and involves an imbalance of power or strength. A child who is being bullied has a hard time defending himself or herself'. Also, 15-20% of children who are bullied say they sometimes bully others. Bullying is serious, since bullied children may become depressed, lonely, anxious, have low self-esteem, feel sick, and think about suicide. If you are concerned that a child you know may be bullying other children, take this quick assessment to learn more about the warning signs and help you determine if the child may be a bully. Learn more about putting this calculator or other calculators on your website.