Calculating Liberal Bias
Study finds media bias leans to the 'left'.
But it really just found a comparison between 'news coverage' and 'political rhetoric'.
It really doesn't account for left/right leanings. Unless that is if they were to do another study to estimate the left/right leaning of each politician and then tie these results together.
The scary thing they found is that most media outlets do not diverge from the government line much at all (the centre in this case), most having to shift coverage of it to the left.
The study inadvertently calculated how much the independent media follows political interests.
Media Bias Is Real, Finds UCLA Political Scientist
Date: December 14, 2005
Contact: Meg Sullivan ( email@example.com )
While the editorial page of The Wall Street Journal is conservative, the newspaper's news pages are liberal, even more liberal than The New York Times. The Drudge Report may have a right-wing reputation, but it leans left. Coverage by public television and radio is conservative compared to the rest of the mainstream media. Meanwhile, almost all major media outlets tilt to the left.
These are just a few of the surprising findings from a UCLA-led study, which is believed to be the first successful attempt at objectively quantifying bias in a range of media outlets and ranking them accordingly.
"I suspected that many media outlets would tilt to the left because surveys have shown that reporters tend to vote more Democrat than Republican," said Tim Groseclose, a UCLA political scientist and the study's lead author. "But I was surprised at just how pronounced the distinctions are."
"Overall, the major media outlets are quite moderate compared to members of Congress, but even so, there is a quantifiable and significant bias in that nearly all of them lean to the left," said co‑author Jeffrey Milyo, University of Missouri economist and public policy scholar.
The results appear in the latest issue of the Quarterly Journal of Economics, which will become available in mid-December.
Groseclose and Milyo based their research on a standard gauge of a lawmaker's support for liberal causes. Americans for Democratic Action (ADA) tracks the percentage of times that each lawmaker votes on the liberal side of an issue. Based on these votes, the ADA assigns a numerical score to each lawmaker, where "100" is the most liberal and "0" is the most conservative. After adjustments to compensate for disproportionate representation that the Senate gives to low‑population states and the lack of representation for the District of Columbia, the average ADA score in Congress (50.1) was assumed to represent the political position of the average U.S. voter.
Groseclose and Milyo then directed 21 research assistants — most of them college students — to scour U.S. media coverage of the past 10 years. They tallied the number of times each media outlet referred to think tanks and policy groups, such as the left-leaning NAACP or the right-leaning Heritage Foundation.
Next, they did the same exercise with speeches of U.S. lawmakers. If a media outlet displayed a citation pattern similar to that of a lawmaker, then Groseclose and Milyo's method assigned both a similar ADA score.
"A media person would have never done this study," said Groseclose, a UCLA political science professor, whose research and teaching focuses on the U.S. Congress. "It takes a Congress scholar even to think of using ADA scores as a measure. And I don't think many media scholars would have considered comparing news stories to congressional speeches."
via... The Wide Awakes - who failed to grasp it