How did this study even make it into publication? If box scores are the source of the data, how as the race of a referee making a call determined? A referee crew can be all white, all black, two white/one black, or two black/one white. The study is invalid since there is no way to determine the race of the individual making a foul call for any mixed race crew. Dismissal of the study by the NBA is totally valid. Also, it would be nice if they released their own data, but confidentiality agreements with the referees would block that. So, where's the beef?