Increasing attention has been devoted to examining how agenda-setting occur in terms of their psychological mechanisms (Holbrook & Hill, 2005). Price and Tewksbury (1997) argued that agenda-setting effects are based on the accessibility model of information processing. Accessibility can be defined as "how much" or "how recently" a person has been exposed to certain issues (Kim et al., 2002). Specifically, individuals try to make less cognitive effort in forming social judgments, they are more likely to rely on the information that is easily accessible (Higgins, 1996). This leads to a greater probability that more accessible information will be used when people make judgments on certain issues (Iyeanger & Kinder, 1987; Scheufele & Tewksbury, 2007).