The upshot: all these gaudy SAT scores, especially at the lower end, was purely a function of test optional and not the sudden increase of high scoring applicants. Common sense I know, but for those looking at Brown or any selective school, don't be put off by a 1480. It isn't a bad score. That being said, make no mistake that your odds are higher the higher your SAT, especially going from 1490 to 1570. Roughly 3x better if you believe Ivies follow the Dartmouth model of admissions.
Prior to covid, Brown's SAT:
2019-2020
1660 freshman enrolled
61% submitted an SAT, 48% submitted an ACT [109% test submission rate, roughly corresponding to 10% submitting both tests)
25%-50%-75%
1440-1500-1550
1,118 students submitted an SAT score. Of those, 559 scored below a 1500; 280 scored below a 1440,
Post-covid, test optional
2023-2024
1695 freshman enrolled
54% submitted an SAT 22% submitted an ACT [76% test submission rate; assuming 10% submitted both tests)
25%-50%-75%
1510-1540-1560
914 students submitted an SAT score. Of these, 457 scored below a 1540; 229 scored below a 1500.
Class of 2029 stats, taken from Brown's admissions page (not its CDS or IPEDS data). It hasn't reported its average SAT
Admitted students (not enrolled, which historically for most colleges admitted students have a slightly stronger profile than enrolled students, around 20 points less on the SAT)
https://admission.brown.edu/explore/brown-admission-numbers
1,768 admitted freshman
25%-75%
1480-1560
Brown has not reported its SAT submission rate, but assuming it is around 60%, 1,060 students submitted an SAT, 265 scored below a 1480. When data is officially released for enrolled freshman, the 25% SAT will most likely land around 1460 to 1470.