Answer:
During the school years, the nature of aggression changes as instrumental aggression increases and hostile aggression decreases.
Step-by-step explanation:
Humans engage in aggression when they seek to cause harm or pain to another person. Aggression takes two forms depending on one’s motives: hostile or instrumental.
Hostile aggression is motivated by feelings of anger with intent to cause pain; a fight in a bar with a stranger is an example of hostile aggression.
In contrast, instrumental aggression is motivated by achieving a goal and does not necessarily involve intent to cause pain .
There are many different theories as to why aggression exists. Some researchers argue that aggression serves an evolutionary function. Men are more likely than women to show aggression . From the perspective of evolutionary psychology, human male aggression, like that in nonhuman primates, likely serves to display dominance over other males, both to protect a mate and to perpetuate the male’s genes .