sports psychology
aggression = the intent to harms others outside the rules of the sport
reactive
out of control
deliberate and hostile
assertion = well motivated behaviour within the rules
controlled
goal-directed
not intended to harm
instinct theory
frustration-aggressive hypothesis
catharsis
aggressive cue hypothesis
social learning theory
preventing aggression
punish aggression fines and sending players off
reinforce non-aggressive behaviours
use mental rehearsal and relaxation
channel aggression into assertion