Carl Bialik has followed up on the NBA bias study. (See here for my earlier comments.) There was some interesting back-and-forth, and the problem had an interesting feature in that different parties were performing different analyses on different datasets. My only added comment is that I mentioned this stuff to Carl Morris yesterday and he pointed out that it would be interesting to see who were the players who were fouled against. For (almost) every foul there is a “foulee”, and you’d think that racism would manifest itself most as fouls called on a white guy playing against a black player or on a black guy facing a white player.