Juniper: 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	91,439	2398.7	− 2432	−33.3	× 27 / 154	−5.8
4	91,442	2406.3	− 2473	−66.7	× 27 / 154	−11.7
5	91,443	2457.5	− 2502	−44.5	× 19 / 154	−5.5
6	91,446	2468.3	− 2531	−62.7	× 23 / 154	−9.4
7	91,447	2505.4	− 2552	−46.6	× 31 / 154	−9.4
8	91,450	2523.0	− 2567	−44	× 27 / 154	−7.7
Sum, rounded to a whole point						−49

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	84,913	2402.0	− 2432	−30	× 32 / 141	−6.8
4	84,916	2432.3	− 2473	−40.7	× 24 / 141	−6.9
5	84,918	2431.7	− 2502	−70.3	× 20 / 141	−10
6	84,920	2455.2	− 2531	−75.8	× 19 / 141	−10.2
7	84,921	2488.0	− 2552	−64	× 21 / 141	−9.5
8	84,923	2488.2	− 2567	−78.8	× 25 / 141	−14
Sum, rounded to a whole point						−57

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	87,266	2366.0	− 2432	−66	× 30 / 128	−15.5
4	87,267	2421.8	− 2473	−51.2	× 24 / 128	−9.6
5	87,269	2436.9	− 2502	−65.1	× 24 / 128	−12.2
6	87,272	2430.0	− 2531	−101	× 18 / 128	−14.2
7	87,273	2495.8	− 2552	−56.2	× 16 / 128	−7
8	87,275	2501.5	− 2567	−65.5	× 16 / 128	−8.2
Sum, rounded to a whole point						−67

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	87,523	2388.6	− 2432	−43.4	× 14 / 122	−5
4	87,526	2420.4	− 2473	−52.6	× 23 / 122	−9.9
5	87,528	2475.8	− 2502	−26.2	× 21 / 122	−4.5
6	87,530	2452.0	− 2531	−79	× 30 / 122	−19.4
7	87,532	2455.1	− 2552	−96.9	× 18 / 122	−14.3
8	87,534	2548.3	− 2567	−18.7	× 16 / 122	−2.5
Sum, rounded to a whole point						−56

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	88,157	2351.1	− 2432	−80.9	× 21 / 123	−13.8
4	88,158	2433.3	− 2473	−39.7	× 16 / 123	−5.2
5	88,159	2467.4	− 2502	−34.6	× 22 / 123	−6.2
6	88,160	2487.4	− 2531	−43.6	× 26 / 123	−9.2
7	88,161	2505.0	− 2552	−47	× 24 / 123	−9.2
8	88,162	2468.5	− 2567	−98.5	× 14 / 123	−11.2
Sum, rounded to a whole point						−55

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	86,431	2415.0	− 2432	−17	× 17 / 133	−2.2
4	86,432	2428.1	− 2473	−44.9	× 23 / 133	−7.8
5	86,433	2456.1	− 2502	−45.9	× 20 / 133	−6.9
6	86,434	2470.4	− 2531	−60.6	× 23 / 133	−10.5
7	86,435	2535.1	− 2552	−16.9	× 28 / 133	−3.6
8	86,436	2534.2	− 2567	−32.8	× 22 / 133	−5.4
Sum, rounded to a whole point						−36

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	88,494	2385.4	− 2432	−46.6	× 20 / 137	−6.8
4	88,495	2472.8	− 2473	−0.2	× 20 / 137	0
5	88,496	2445.2	− 2502	−56.8	× 19 / 137	−7.9
6	88,497	2471.5	− 2531	−59.5	× 25 / 137	−10.9
7	88,498	2512.0	− 2552	−40	× 24 / 137	−7
8	88,499	2543.1	− 2567	−23.9	× 29 / 137	−5.1
Sum, rounded to a whole point						−38

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	88,399	2410.2	− 2432	−21.8	× 29 / 131	−4.8
4	88,400	2434.8	− 2473	−38.2	× 19 / 131	−5.5
5	88,401	2496.4	− 2502	−5.6	× 17 / 131	−0.7
6	88,402	2446.9	− 2531	−84.1	× 27 / 131	−17.3
7	88,403	2525.7	− 2552	−26.3	× 21 / 131	−4.2
8	88,404	2550.2	− 2567	−16.8	× 18 / 131	−2.3
Sum, rounded to a whole point						−35

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	88,372	2427.3	− 2432	−4.7	× 30 / 140	−1
4	88,373	2470.8	− 2473	−2.2	× 27 / 140	−0.4
5	88,374	2442.9	− 2502	−59.1	× 22 / 140	−9.3
6	88,375	2467.0	− 2531	−64	× 15 / 140	−6.9
7	88,376	2496.3	− 2552	−55.7	× 30 / 140	−11.9
8	88,377	2565.3	− 2567	−1.7	× 16 / 140	−0.2
Sum, rounded to a whole point						−30

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	88,066	2423.1	− 2432	−8.9	× 25 / 146	−1.5
4	88,067	2462.2	− 2473	−10.8	× 25 / 146	−1.8
5	88,068	2492.9	− 2502	−9.1	× 30 / 146	−1.9
6	88,069	2470.0	− 2531	−61	× 27 / 146	−11.3
7	88,070	2506.5	− 2552	−45.5	× 20 / 146	−6.2
8	88,071	2492.9	− 2567	−74.1	× 19 / 146	−9.6
Sum, rounded to a whole point						−32

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −49, −57, −67, −56, −55, −36, −38, −35, −30, −32 → −45.5
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 8 · 2016→2017: 10 · 2017→2018: 11 · 2018→2019: 1 · 2019→2021: 19 · 2021→2022: 2 · 2022→2023: 3 · 2023→2024: 5 · 2024→2025: 2 → average 6.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 6.8 × 2.66 = 18.1. Upper limit −27.4, lower limit −63.6.

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.