Strengths And Weaknesses Of Theory
It has explanatory power because it explains why most people prioritize the same issues as important. It also has predictive power because it predicts that if people are exposed to the same media, they will feel the same issues are important. Its meta-theoretical assumptions are balanced on the scientific side and it lays groundwork for further research. Furthermore, it has organizing power because it helps organize existing knowledge of media effects.
There are also limitations, such as media users may not be as ideal as the theory assumes. People may not be well-informed, deeply engaged in public affairs, thoughtful and skeptical. Instead, they may pay only casual and intermittent attention to public affairs and remain ignorant of the details. For people who have made up their minds, the effect is weakened. News media cannot create or conceal problems; they may only alter the awareness, priorities and salience people attached to a set of problems. Research has largely been inconclusive in establishing a causal relationship between public salience and media coverage.
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