as far as economic backgrounds go.
Students generally perform better who are from higher income neighborhoods that can afford better facilities. The quality of educator
is better and these schools tend to be better all around. Using standardized testing has always come under attack
when there's a clash of economic backgrounds. Better neighborhoods pay for better educators better
facilities and have a focus on creating better test takers. Lower economic neighborhoods have the opposite.
At least that's what I've read. I'm sure there are stats that could prove either way.
Personally, I don't think it dumbs down the student, I think it just shows off the better student.