White millennials show slightly less implicit bias against blacks, 2008 survey found

Respondents were asked to rate whether 48 Chinese characters were "pleasant" or "unpleasant" on a computer after being flashed an image of a black or white person. Respondents classified as more/less positive if proportion of "pleasant" responses by race differed by at least 10%.

Source: 2008 American National Election Studies
The Washington Post