There are two broad categories of aggression. These include hostile, affective, or retaliatory aggression and instrumental, predatory, or goal-oriented aggression. Empirical [[research]] indicates that there is a [[critical]] [[difference]] between the two, both psychologically and physiologically. Some research indicates that people with tendencies toward affective aggression have lower levels of [[intelligence]] than those with tendencies toward predatory aggression. | There are two broad categories of aggression. These include hostile, affective, or retaliatory aggression and instrumental, predatory, or goal-oriented aggression. Empirical [[research]] indicates that there is a [[critical]] [[difference]] between the two, both psychologically and physiologically. Some research indicates that people with tendencies toward affective aggression have lower levels of [[intelligence]] than those with tendencies toward predatory aggression. |