The concept of accessibility is the foundation of a memory-based model (Scheufele, 2000). It assumes that individuals make judgments on the issues based on information that is easily available and retrievable from their memory (Tulving & Watkins, 1975; Hastie & Park, 1986; Iyengar, 1990). Tversky and Kahneman (1974) also argue that the formation of individuals' judgments directly correlates with "the ease in which instances or associations could be brought to mind" (p. 208). When individuals receive and process information, they develop memory traces that can be easily recalled to make decisions on a certain issue. Agenda-setting, in this regard, can make certain issue to be easily accessed in individual's memory when forming judgment about the issue.