Left Turn: How Liberal Media Bias Distorts the American Mind

Stuart Lecture Series on Institutional Corruption in America

May 1, 2013
Groseclose event poster

Tim GrosecloseMarvin Hoffenberg Chair of American Politics, University of California, Los Angeles 
Author of Left Turn: How Liberal Media Bias Distorts the American Mind (St. Martin's Griffin, 2012)

Professor Groseclose will discuss a way to measure quantitatively the slants of various news outlets.  He finds that nearly all mainstream news outlets have a liberal bias.  He estimates that the bias has shifted the views of voters by about 25 “PQ” points on a 100-point scale—approximately the difference between the average American voter and the average Texas voter.

Tim Groseclose is the Marvin Hoffenberg Professor of American Politics at UCLA. He has joint appointments in the political science and economics departments. He has held previous faculty appointments at Caltech, Stanford University, Ohio State University, Harvard University, and Carnegie Mellon University.  His research focuses on mathematical models of politics, Congress, and the media.  He has published more than two dozen scholarly articles, including some published in the American Economic Review, Quarterly Journal of Economics, American Political Science Review, American Journal of Political Science, and Journal of Politics.


Left Turn: How Liberal Media Bias Distorts the American Mind


Lewis Library 120

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