San Martin Gwinn Environmental Science Academy: english

The shaded band is this school's normal range. If nothing about how it works changes, nearly every future year should land inside it. Zero means the typical student just meets the state standard. The small numbers under the years are how many students were tested.

Step 1 · Each year's result

For each grade tested, take the average (mean) scale score from the California Department of Education's results file, and subtract the lowest score that counts as "Standard Met" for that grade. That is the grade's distance from standard. Weight each grade by its share of the students tested, then add the grades up. Grades where the state hides the average because ten or fewer students tested are left out entirely.

2015 from sb_ca2015_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	87,946	2367.4	− 2432	−64.6	× 72 / 263	−17.7
4	87,948	2422.2	− 2473	−50.8	× 70 / 263	−13.5
5	87,950	2481.8	− 2502	−20.2	× 56 / 263	−4.3
6	87,952	2496.3	− 2531	−34.7	× 65 / 263	−8.6
Sum, rounded to a whole point						−44

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,635	2384.0	− 2432	−48	× 83 / 284	−14
4	81,638	2419.3	− 2473	−53.7	× 76 / 284	−14.4
5	81,640	2467.2	− 2502	−34.8	× 72 / 284	−8.8
6	81,641	2522.4	− 2531	−8.6	× 53 / 284	−1.6
Sum, rounded to a whole point						−39

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	83,905	2378.7	− 2432	−53.3	× 81 / 298	−14.5
4	83,908	2408.5	− 2473	−64.5	× 81 / 298	−17.5
5	83,909	2416.5	− 2502	−85.5	× 73 / 298	−20.9
6	83,911	2470.5	− 2531	−60.5	× 63 / 298	−12.8
Sum, rounded to a whole point						−66

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	84,127	2388.4	− 2432	−43.6	× 81 / 367	−9.6
4	84,130	2414.4	− 2473	−58.6	× 83 / 367	−13.3
5	84,131	2430.2	− 2502	−71.8	× 87 / 367	−17
6	84,134	2434.8	− 2531	−96.2	× 70 / 367	−18.3
7	84,135	2472.7	− 2552	−79.3	× 46 / 367	−9.9
Sum, rounded to a whole point						−68

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	84,739	2400.1	− 2432	−31.9	× 78 / 426	−5.8
4	84,740	2427.9	− 2473	−45.1	× 79 / 426	−8.4
5	84,741	2436.9	− 2502	−65.1	× 81 / 426	−12.4
6	84,742	2456.7	− 2531	−74.3	× 80 / 426	−14
7	84,743	2475.9	− 2552	−76.1	× 61 / 426	−10.9
8	84,744	2492.7	− 2567	−74.3	× 47 / 426	−8.2
Sum, rounded to a whole point						−60

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	84,908	2358.5	− 2432	−73.5	× 67 / 427	−11.5
4	84,909	2385.5	− 2473	−87.5	× 74 / 427	−15.2
5	84,910	2435.0	− 2502	−67	× 67 / 427	−10.5
6	84,911	2453.5	− 2531	−77.5	× 81 / 427	−14.7
7	84,912	2458.2	− 2552	−93.8	× 67 / 427	−14.7
8	84,913	2483.8	− 2567	−83.2	× 71 / 427	−13.8
Sum, rounded to a whole point						−80

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	84,841	2380.1	− 2432	−51.9	× 69 / 430	−8.3
4	84,842	2388.9	− 2473	−84.1	× 74 / 430	−14.5
5	84,843	2456.2	− 2502	−45.8	× 79 / 430	−8.4
6	84,844	2457.3	− 2531	−73.7	× 75 / 430	−12.9
7	84,845	2473.4	− 2552	−78.6	× 70 / 430	−12.8
8	84,846	2508.0	− 2567	−59	× 63 / 430	−8.6
Sum, rounded to a whole point						−66

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	84,836	2336.8	− 2432	−95.2	× 70 / 409	−16.3
4	84,837	2408.0	− 2473	−65	× 65 / 409	−10.3
5	84,838	2441.4	− 2502	−60.6	× 70 / 409	−10.4
6	84,839	2478.4	− 2531	−52.6	× 72 / 409	−9.3
7	84,840	2488.0	− 2552	−64	× 69 / 409	−10.8
8	84,841	2499.8	− 2567	−67.2	× 63 / 409	−10.4
Sum, rounded to a whole point						−67

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	84,530	2343.7	− 2432	−88.3	× 52 / 385	−11.9
4	84,531	2405.8	− 2473	−67.2	× 72 / 385	−12.6
5	84,532	2475.0	− 2502	−27	× 61 / 385	−4.3
6	84,533	2444.0	− 2531	−87	× 67 / 385	−15.1
7	84,534	2513.5	− 2552	−38.5	× 62 / 385	−6.2
8	84,535	2492.7	− 2567	−74.3	× 71 / 385	−13.7
Sum, rounded to a whole point						−64

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −44, −39, −66, −68, −60, −80, −66, −67, −64 → −61.6
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 5 · 2016→2017: 27 · 2017→2018: 2 · 2018→2019: 8 · 2019→2022: 20 · 2022→2023: 14 · 2023→2024: 1 · 2024→2025: 3 → average 10
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 10 × 2.66 = 26.6. Upper limit −35, lower limit −88.2.

Why 2.66? It is the standard factor from quality control, the work of Walter Shewhart and W. Edwards Deming. It turns "how much the result typically changes in a year" into "how far it can wander by chance alone".

Years with no result (no state tests were given in spring 2020) are skipped: the year-to-year change runs from the last year with a result to the next one.

Step 3 · Free or reduced-price meals

The share of enrolled students eligible for free or reduced-price meals. From 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.