PSYC100 Chapter Notes - Chapter 12: Group Decision-Making, Sales, Deindividuation
14 Nov 2016
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Advantages: provides security from predators and assistance in hunting and gathering food, provides mating opportunities. In-groups- groups to which particular people belong. Out-groups- groups to which people do not belong to. Two factors that are important in the formation of in/out groups: reciprocity- if person a helps/harms person b, then person b will help/harm person a. Ex: if you scratch my back, i will scratch yours: transitivity- other people ge(cid:374)erall(cid:455) share their frie(cid:374)ds" opi(cid:374)io(cid:374)s of other people. If person a and person b are friends, then if person a likes person c and dislikes person d, the person b will do the same. E(cid:454): (cid:373)(cid:455) (cid:271)est frie(cid:374)d does(cid:374)"t like him so neither do i. Once people characterize others as in-group or outgroup members, they treat others accordingly. Outgroup homogeneity effect- the tendency to view outgroup members as less varied than in-group members.
