Standardized tests are normed on “regular” students.
Eduhonesty: This ensures that our lower-performing students in poor and urban districts — or anywhere else for that matter — will get their asses kicked by these tests. No other result is possible. “Regular” or “average” students set the difficulty level of the test, with the intent that these students will fall into the middle of the test distribution. Lower students then must fall to the bottom.
No bully on the playground could come up with a better plan for making a kid feel like a loser.