Johnny is displaying antisocial behavior.
He is showing signs of aggression and unacceptable behaviors which are not appropriate within his society. He is hitting another child without any particular cause - he just wants to cause him harm and pain. This is a sign of antisocial behavior which can be a huge problem for Johnny if it continues into his adult life.
when playing the trust game, if the participants were told that the other player was a student at their university, the participants put on a psychological attitude of belonging, inclusiveness and membership, and this speaks about the in-group dynamics. On the contrary, when playing the trust game, if the participants were told that the other player was a student from a rival university, the participants put on a psychological attitude of not identifying, or nonmembership. This tells about the out-group dynamics of the participants. For example, people may find it psychologically meaningful to view themselves according to their race, culture, gender or religion. It has been found that the psychological membership of social groups and categories is associated with a wide variety of what situation is prevalent.
it made trade easier bc then they would not have to carry around cins and the reason they made paper money wus bc it was beginning to get too heavy to carry