The polarized American: Views on humanity and the sources of hyper-partisanship2012 Article in Scientific Journalhyperpartisanship, political polarization, US citizensKaltenthaler, K., & Miller, W. J. (2012). The polarized American: Views on humanity and the sources of hyper-partisanship. American Behavioral Scientist, 56(12), 1718-1734.