Saw this at one of the blogs in that link above — mindhacks
https://www.washingtonpost.com/news/wonk/wp/2014/12/08/across-america-whites-are-biased-and-they-dont-even-know-it/?utm_term=.4a6a0685484c
A cautionary note: The people who have taken the IAT at the Project Implicit website are not a random sample of Americans, either nationally or on a state-by-state basis. Rather, they’re people who, for some reason, chose to take an online test measuring their implicit biases — which may actually mean they are less biased than average. (After all, at least they wanted to know how biased they are.)
“Please keep in mind that this map describes volunteers for the online IAT,” says psychologist Anthony Greenwald of the University of Washington, who created the Implicit Association Test in 1995. “These volunteers are younger, more educated, more politically liberal, and more female than the U.S. population as a whole.”