The age of onset in aggression is also a relevant factor in differentiating the nature and type of aggression. A significant amount of literature has indicated that aggression decreases throughout childhood (Dodge & Coie, 1998; Fite, Colder, Lochman, & Wells, 2008). However, there are differing beliefs as to when aggression reaches its peak. For instance, Tremblay (2000) posited that aggression peaks during preschool age as this is when children develop the capacity to inhibit their physical aggression, while other researchers have stated that aggression tends to come to its peak and begin to decrease around the fifth grade (Fite et al., 2008). Studies indicate that males tend to exhibit antisocial behaviours at a much earlier age than females