There have been multiple studies which, not surprisingly, show that those who watch Fox are the most misinformed. A survey from Fairleigh Dickinson University found that those who listen to NPR could answer the most questions about current events. Those who watch Fox did the worst–even worse than those who do not watch any media. Daily Show viewers also did well.
People who watch no news at all can answer more questions about international current events than people who watch cable news, a survey by Fairleigh Dickinson University’s PublicMindfinds.
NPR and Sunday morning political talk shows are the most informative news outlets, while exposure to partisan sources, such as Fox News and MSNBC, has a negative impact on people’s current events knowledge.
People who watch MSNBC and CNN exclusively can answer more questions about domestic events than people who watch no news at all. People who only watch Fox did much worse. NPR listeners answered more questions correctly than people in any other category…
The largest effect is that of Fox News: all else being equal, someone who watched only Fox News would be expected to answer just 1.04 domestic questions correctly — a figure which is significantly worse than if they had reported watching no media at all. On the other hand, if they listened only to NPR, they would be expected to answer 1.51 questions correctly; viewers of Sunday morning talk shows fare similarly well. And people watching only The Daily Show with Jon Stewart could answer about 1.42 questions correctly…
News organizations’ tone and allocation of resources also apparently affected respondents’ abilities to answer questions. NPR has as many domestic bureaus as foreign ones; its listeners did best on questions about international events. “Daily Show” viewers were next. On domestic questions, people who watched Sunday news shows did nearly as well as NPR listeners.