That isn't the question that matters. What matter is what do we do with that knowledge? Because right now, the answer isn't a whole heck of a lot.

Systematically comparing schools on any metric accomplishes nothing. And every year for decades we act like we just need to identify the good schools and replicate their success, with literally actual regard given to what makes schools successful in the first place: functioning administration, involved parents, good and stable teachers. After that, curriculum and resources.

And a functioning administration is generally what gets sacrified first in pursuit of some across the board improvement in some flavor of the week metric.