ABSTRACT
An object of much recent research has been the identification of variables which mediate the agenda-setting function of the mass media. As McCombs (1976a: 2) states in his recent review of the agenda-setting literature, “No one contends that agenda-setting is an influence process operating at all times and all places in all people.” In his review, McCombs identifies a number of “contingent conditions” which have been shown by research to affect agenda-setting. These include the individual’s need for orientation, frequency of interpersonal discussion, level of media exposure, and voting decision state (decided versus undecided).
