Groups: consist of at least 2 people who perceive themselves to be a member of that group when the existence of the group is recognized by at least one other
Deindividuation: sense of anonymity that individuals experience when they are acting as part of a group; this can result in group members engaging in extreme behaviors
Social responsibility
Prosocial behavior
Reciprocal altruism model
Humiliation’s kin selection theory: helping relatives to pass on the genes you share
Empathy altruism hypothesis: people help out genuine concern for another’s wellness; social exchange theory; altruistic vs egoistic