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In this paper, we develop a new measurement model to distinguish people having genuinely moderate views across issues, being inattentive to politics or political surveys, or holding views poorly summarized by a single liberal–conservative dimension.

To approximate a natural experiment where some counties are randomly exposed to more Fox News, we focus on variation in the channel number -- i.e., when it has a lower number (e.g. 20), people watch Fox more often than when it has a higher channel number (e.g. 80).