Do You Really Know How to Measure Outcomes?

Do you think we are able to even measure the outcomes we would care about? How common is it that people in the middle of data aren't swamped by those at the top and bottom. What do you think, if you look at the test, not a crummy test, what do you think should be on this one? In terms of Menea’s other tests, why did she get such low scores for literacy and new mercy?