Katz, Daniel; Braley, Kenneth (1933). “Racial stereotypes of one hundred college students”. The Journal of Abnormal and Social Psychology28 (3): 280–290. doi:10.1037/h0074049.
Critchfield, Austi (2017年11月15日). “This is Why Doughnuts Are Associated With Cops”. Spoon University. 2017年11月19日時点のオリジナルよりアーカイブ。2020年11月2日閲覧。 “The funny thing is, the whole cop and doughnuts thing is completely out of date -- today, an officer could just as easily swing through a McDonald’s drive through as he could a Krispy Kreme. Yet, the stereotype endures, even though police aren’t seen at doughnut shops in nearly the numbers they used to have been. In a way, it’s become a stereotype of itself, which is pretty meta.”
Critchfield, Austi (2017年11月15日). “This is Why Doughnuts Are Associated With Cops”. Spoon University. 2017年11月19日時点のオリジナルよりアーカイブ。2020年11月2日閲覧。 “The funny thing is, the whole cop and doughnuts thing is completely out of date -- today, an officer could just as easily swing through a McDonald’s drive through as he could a Krispy Kreme. Yet, the stereotype endures, even though police aren’t seen at doughnut shops in nearly the numbers they used to have been. In a way, it’s become a stereotype of itself, which is pretty meta.”