Psychology

is an emotional type of aggression which is caused by pain, upset or anger (Anshel, 2003; Cox, 2007, Wann, 1997). Its main aim is to hurt or harm another person.

is an aggression behavior that aimed at hurting another person to achieve result other than the hurt that the victim suffers (Wann, 1997). Its main aim is to gain some desired rewards, such as money, goods or trophies

Assertion or Assertiveness is an application of lawful use of force or strategy on another person in order to achieve specific objective with intention to cause harm (Wann, 1997).