%0 Journal Article %T ¡°Terrorist¡± or ¡°Mentally Ill¡±: Motivated Biases Rooted in Partisanship Shape Attributions About Violent Actors %A Agostino Mazziotta %A Birte Siem %A Masi Noor %A Nour Kteily %J Social Psychological and Personality Science %@ 1948-5514 %D 2019 %R 10.1177/1948550618764808 %X We investigated whether motivated reasoning rooted in partisanship affects the attributions individuals make about violent attackers¡¯ underlying motives and group memberships. Study 1 demonstrated that on the day of the Brexit referendum pro-leavers (vs. pro-remainers) attributed an exculpatory (i.e., mental health) versus condemnatory (i.e., terrorism) motive to the killing of a pro-remain politician. Study 2 demonstrated that pro-immigration (vs. anti-immigration) perceivers in Germany ascribed a mental health (vs. terrorism) motive to a suicide attack by a Syrian refugee, predicting lower endorsement of punitiveness against his group (i.e., refugees) as a whole. Study 3 experimentally manipulated target motives, showing that Americans distanced a politically motivated (vs. mentally ill) violent individual from their in-group and assigned him harsher punishment¡ªpatterns most pronounced among high-group identifiers %K terrorism %K mental illness %K attributions %K punitiveness %K motivated reasoning %U https://journals.sagepub.com/doi/full/10.1177/1948550618764808