Introduction to Psychology 10th Edition by Rod Plotnik,Haig Kouyoumdjian

Exercise 27

The findings that identical twins are more alike in aggression and that not all abused children become aggressive are evidence for (a) _____ influences on aggression. The finding that people can learn aggressive behavior through observation, imitation, and self-reinforcement supports the influence of (b) _____ factors. The finding that frustration may lead to or trigger aggression supports the influence of (c) _____ factors. Unlike humans, aggression in animals is primarily influenced by (d) _____ factors.