I suppose my questions would be:

1.) Isn't the school's staff's demographics often reflective of the students'?
2.) Are different activities categorized as the same offense? I.E. Yelling profanities at the teacher versus not returning to your seat.
3.) Does the study factor in disciplinary history?
4.) What were the students suspended for?

I know you can't answer these, but it seems like the article should considered these. Until it's made public, I'm skeptical of the findings. This is a lot like police brutality. It's typically based on proportion-to-population when the proportion-to-crimes is the important factor. The form of punishment in the article was suspension, but without knowing if they received more / less warnings then their white counterparts, it's impossible to know if it was racially motivated.

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