The between - subjects effects comparing boys and girls revealed that boys
scored higher than girls on physical, F (1, 1641) = 36.46, p <.001, η2 =.02,
verbal, F (1, 1641) = 25.04, p <.001, η2 =.02 and relational
aggression F (1, 1641) = 5.10, p <.05, η2 =.003.
For example,
verbal aggression usually
scores in the lowest range (1 — 3), minor physical
aggression in the intermediate range (4 — 6) while severe
aggression resulting in injuries or even death rate in the high (7 — 9) or highest range (10 — 12), respectively.