That Has To Be The Explanation....

The Post speculates,

Why is it that teachers were more apt to see problems with the behavior or character of minority students? One board member, according to The Post's Michael Alison Chandler, was "perplexed" that disparities in measures of character education mirrored the gaps in academic achievement. No one should be surprised that students don't do well when their teachers expect less of them.

Yes, that must be it - all the teachers are racist and expect less of minority students, and that's what causes behavior problems in class.

It couldn't be something as mundane as, say, kids whose parents have little interest in school performance raising kids who share their values. Could it? Because you'll find the same correlation in predominantly white school districts as well.