Did anyone see
this story in the NYT today?
Cliff notes: a study claims that there is racial bias in calling fouls in the NBA.
My initial reaction was that it would be extremely difficult to create any study that could account for all the variables. But if you read the entire article, it appears that the study made a strong effort to do just that.
The NBA had its own study done, and came to a different conclusion. But the NYT engaged three "neutral" experts who concluded that the study finding bias was more persuasive.