Students at shools where 40% or more of the student body is classified as low income receive 10 points towards exam school entrance. [0] Being a poor kid at a rich school is a penalty, while being a rich kid at a poor school is a bonus.
A student attending a school without bonus points would need to score 97 points. Class rank is a factor which effectively imposes quotas on schools regardless of students grades and or test scores. Back around 2016 there were a handful of schools where students needed to score in excess of 100 points to get into Latin.
Last year 408 high income students received bonus points while 29 low income students did not. The admission rates for these groups were 85% and 55% respectively. [1]
I don't believe this is true, but if you have citations I'd be happy to hear them.
For instance, their accountability data [1] shows that, in 2023, out of 409 kids taking their ELA MCAS test, 92 were categorized as "low income."
I find this hard to square with your statement (all students came from low-income schools but 88% are not low income?).
1. https://profiles.doe.mass.edu/accountability/report/district...