Hi guys. I've chosen a psychology theory today to talk about. So the theory that I will be talking on is frustration aggression theory. The link between frustration being prevented from attaining a goal or engaging in behavior and aggression has been discussed in psychology for more half a century. Some even view it as a master explanation for understanding the cause of human violence. The basic premise of the frustration aggression hypothesis is twofold. First one is aggression is always produced by frustration and frustration is always produced by aggression