what percent of non-low income students meet or exceed standards on the PSAE?

Earlier I posted some data on Proviso Township High Schools (District 209).

Proviso ranked 26th of 27 districts in suburban Cook County in the percent of students who meet or exceed standards on the Prairie State Achievement Exam. And District 209 would have to make substantial improvement--go from 22.5% passing to 33.9% to tie #25 Thornton, which is 4.3% behind #24 Thornton Fractional.

District 209 looks pretty bad.

But the story is actually worse than it first appears.

Let's assume that all low income students fail to meet standards. What percent of non-low income students meet or exceed standards? How do districts rank?

1	Evanston	108%
2	Rich	98%
3	Argo	95%
4	New Trier	94%
5	Thornton	92%
6	Elmwood Park	90%
7	Maine	87%
8	Northfield	86%
9	Oak Park & River Forest	85%
10	Township HSD 211	83%
11	Niles	82%
12	Lyons	82%
13	Township HSD 214	80%
14	Riverside-Brookfield	79%
15	Bloom	77%
16	Oak Lawn	77%
17	Lemont	77%
18	Con HSD 230	76%
19	Evergreen Park	75%
20	Thornton Fractional	75%
21	Bremen	73%
22	Homewood Flossmoor	72%
23	Reavis	69%
24	CHSD 218	63%
25	Leyden	62%
26	Ridgewood	59%
27	Proviso	34%

If one assumes every low income student fails the PSAE, only 34% District 209 students who are not low income meet or exceed standards. The next lowest district is 59%.

This is appalling. The district is severely dysfunctional. Remember, District 209 spends $25,360 per student which ranks the district seventh in spending of the 27 districts.

I'm curious where District 209 would rank among Chicago Public Schools using the methodology of considering what percent of non-low income students pass.

Could it be that District 209 operates the three least effective schools in the state, while spending money in excess of Riverside-Brookfield, Lyons Township and Homewood-Flossmoor?