ABSTRACT
B. H. Raven and A. W. Kruglanski examined the bases for power preference. The interaction of bases of power is particularly well illustrated in an experiment conducted by Raven, H. H. Mansson, and E. Anthony in which expert and referent power was experimentally manipulated. Three sources of social power—expertness, reference, and legitimacy—result in social influence which is dependent upon the influencing agent. As compared to influence stemming from reward and coercion, the effects continue whether or not the influencee believes that his behavior will become apparent to the influencing agent. Herbert Kelman distinguishes three "sources of power of an agent," three "resources" possessed by the agent by which he may successfully exercise influence: means-control, attractiveness, and credibility. In Kelman's definitional statements and in his experimental operations, "credibility" seems to correspond to expert power. However, Kelman suggests that credibility leads to internalization.
