Ascend: english · Schoolio

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	3,137	2359.8	− 2432	−72.2	× 48 / 289	−12
4	3,139	2416.5	− 2473	−56.5	× 48 / 289	−9.4
5	3,141	2469.6	− 2502	−32.4	× 48 / 289	−5.4
6	3,143	2493.3	− 2531	−37.7	× 48 / 289	−6.3
7	3,145	2503.7	− 2552	−48.3	× 48 / 289	−8
8	3,147	2508.7	− 2567	−58.3	× 49 / 289	−9.9
Sum, rounded to a whole point						−51

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,846	2357.7	− 2432	−74.3	× 50 / 294	−12.6
4	2,849	2409.9	− 2473	−63.1	× 50 / 294	−10.7
5	2,850	2490.1	− 2502	−11.9	× 51 / 294	−2.1
6	2,852	2486.0	− 2531	−45	× 44 / 294	−6.7
7	2,854	2507.1	− 2552	−44.9	× 49 / 294	−7.5
8	2,856	2519.4	− 2567	−47.6	× 50 / 294	−8.1
Sum, rounded to a whole point						−48

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,921	2349.6	− 2432	−82.4	× 52 / 307	−14
4	2,922	2406.3	− 2473	−66.7	× 50 / 307	−10.9
5	2,925	2458.1	− 2502	−43.9	× 54 / 307	−7.7
6	2,927	2506.5	− 2531	−24.5	× 52 / 307	−4.1
7	2,928	2545.6	− 2552	−6.4	× 48 / 307	−1
8	2,931	2559.1	− 2567	−7.9	× 51 / 307	−1.3
Sum, rounded to a whole point						−39

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,923	2354.3	− 2432	−77.7	× 53 / 313	−13.2
4	2,925	2417.5	− 2473	−55.5	× 51 / 313	−9
5	2,927	2464.6	− 2502	−37.4	× 53 / 313	−6.3
6	2,929	2479.3	− 2531	−51.7	× 52 / 313	−8.6
7	2,931	2535.6	− 2552	−16.4	× 53 / 313	−2.8
8	2,933	2575.7	− 2567	8.7	× 51 / 313	1.4
Sum, rounded to a whole point						−38

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,942	2379.8	− 2432	−52.2	× 51 / 311	−8.6
4	2,943	2433.4	− 2473	−39.6	× 52 / 311	−6.6
5	2,944	2456.9	− 2502	−45.1	× 52 / 311	−7.5
6	2,945	2508.6	− 2531	−22.4	× 52 / 311	−3.7
7	2,946	2536.3	− 2552	−15.7	× 53 / 311	−2.7
8	2,947	2566.1	− 2567	−0.9	× 51 / 311	−0.1
Sum, rounded to a whole point						−29

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,840	2354.2	− 2432	−77.8	× 51 / 312	−12.7
4	2,841	2406.1	− 2473	−66.9	× 52 / 312	−11.2
5	2,842	2458.1	− 2502	−43.9	× 51 / 312	−7.2
6	2,843	2503.1	− 2531	−27.9	× 53 / 312	−4.7
7	2,844	2531.6	− 2552	−20.4	× 52 / 312	−3.4
8	2,845	2552.8	− 2567	−14.2	× 53 / 312	−2.4
Sum, rounded to a whole point						−42

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,774	2365.2	− 2432	−66.8	× 50 / 307	−10.9
4	2,775	2437.0	− 2473	−36	× 49 / 307	−5.7
5	2,776	2465.6	− 2502	−36.4	× 51 / 307	−6
6	2,777	2478.3	− 2531	−52.7	× 50 / 307	−8.6
7	2,778	2519.2	− 2552	−32.8	× 53 / 307	−5.7
8	2,779	2570.9	− 2567	3.9	× 54 / 307	0.7
Sum, rounded to a whole point						−36

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,738	2348.9	− 2432	−83.1	× 52 / 311	−13.9
4	2,739	2413.0	− 2473	−60	× 51 / 311	−9.8
5	2,740	2454.8	− 2502	−47.2	× 50 / 311	−7.6
6	2,741	2502.4	− 2531	−28.6	× 55 / 311	−5.1
7	2,742	2491.7	− 2552	−60.3	× 51 / 311	−9.9
8	2,743	2553.9	− 2567	−13.1	× 52 / 311	−2.2
Sum, rounded to a whole point						−48

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,706	2368.8	− 2432	−63.2	× 52 / 319	−10.3
4	2,707	2399.0	− 2473	−74	× 54 / 319	−12.5
5	2,708	2466.5	− 2502	−35.5	× 54 / 319	−6
6	2,709	2511.4	− 2531	−19.6	× 53 / 319	−3.3
7	2,710	2537.7	− 2552	−14.3	× 53 / 319	−2.4
8	2,711	2553.3	− 2567	−13.7	× 53 / 319	−2.3
Sum, rounded to a whole point						−37

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −51, −48, −39, −38, −29, −42, −36, −48, −37 → −40.9
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 3 · 2016→2017: 9 · 2017→2018: 1 · 2018→2019: 9 · 2019→2022: 13 · 2022→2023: 6 · 2023→2024: 12 · 2024→2025: 11 → average 8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 8 × 2.66 = 21.3. Upper limit −19.6, lower limit −62.2.

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.