In the second phase of the study, children were 10 years old to check that their aggression has changed: it has both men and women rated as aggressive at the age of eight ranked similar from friends. They are 10 years later, also has been ranked as aggressive are more likely to see themselves as proactive others, the rate and see the world as a place of aggression, these results demonstrate the existence of. aggression as a way of relating to people and see the world.