Re:SAT score distributions in Michigan
by sokoloff on Thursday October 06, 2022 @10:30AM
(#33108644)
Isn't that likely driven by a selection bias? "Everyone in school A takes the test in-school" vs "School B does not offer the test, so a subset of school B's students take the test on a weekend."
From that alone, I'd expect school B's test results to substantially outperform school A's results.
The test was mandatory for all HS students to take, but I do think there is an element of selection bias. Those who took the test on the weekend may have been more invested in the result. They certainly dedicated at least an extra weekend's worth of time.
It would be particularly interesting to see this parsed out by the same economic and education related parameters in order to see how much an effect just having a smaller quieter "separate" test environment helps a student's score.