Wright Charter: 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	95,831	2387.4	− 2432	−44.6	× 72 / 326	−9.9
4	95,832	2421.7	− 2473	−51.3	× 43 / 326	−6.8
5	95,835	2434.1	− 2502	−67.9	× 60 / 326	−12.5
6	95,836	2500.5	− 2531	−30.5	× 47 / 326	−4.4
7	95,839	2541.1	− 2552	−10.9	× 57 / 326	−1.9
8	95,840	2563.0	− 2567	−4	× 47 / 326	−0.6
Sum, rounded to a whole point						−36

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	88,931	2402.2	− 2432	−29.8	× 49 / 337	−4.3
4	88,934	2410.6	− 2473	−62.4	× 73 / 337	−13.5
5	88,935	2476.7	− 2502	−25.3	× 46 / 337	−3.5
6	88,937	2503.1	− 2531	−27.9	× 56 / 337	−4.6
7	88,940	2551.1	− 2552	−0.9	× 58 / 337	−0.2
8	88,942	2571.7	− 2567	4.7	× 55 / 337	0.8
Sum, rounded to a whole point						−25

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,488	2426.3	− 2432	−5.7	× 51 / 333	−0.9
4	91,490	2448.2	− 2473	−24.8	× 52 / 333	−3.9
5	91,493	2464.3	− 2502	−37.7	× 73 / 333	−8.3
6	91,495	2508.0	− 2531	−23	× 50 / 333	−3.5
7	91,497	2550.9	− 2552	−1.1	× 54 / 333	−0.2
8	91,498	2569.0	− 2567	2	× 53 / 333	0.3
Sum, rounded to a whole point						−16

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,687	2429.9	− 2432	−2.1	× 55 / 332	−0.3
4	91,690	2463.1	− 2473	−9.9	× 54 / 332	−1.6
5	91,691	2469.8	− 2502	−32.2	× 46 / 332	−4.5
6	91,694	2514.2	− 2531	−16.8	× 66 / 332	−3.3
7	91,695	2540.9	− 2552	−11.1	× 59 / 332	−2
8	91,698	2570.2	− 2567	3.2	× 52 / 332	0.5
Sum, rounded to a whole point						−11

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	92,327	2430.9	− 2432	−1.1	× 48 / 310	−0.2
4	92,328	2459.1	− 2473	−13.9	× 53 / 310	−2.4
5	92,329	2512.7	− 2502	10.7	× 56 / 310	1.9
6	92,330	2526.8	− 2531	−4.2	× 49 / 310	−0.7
7	92,331	2562.1	− 2552	10.1	× 53 / 310	1.7
8	92,332	2574.9	− 2567	7.9	× 51 / 310	1.3
Sum, rounded to a whole point						2

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	92,585	2429.4	− 2432	−2.6	× 47 / 278	−0.4
4	92,586	2450.2	− 2473	−22.8	× 45 / 278	−3.7
5	92,587	2488.0	− 2502	−14	× 43 / 278	−2.2
6	92,588	2496.5	− 2531	−34.5	× 49 / 278	−6.1
7	92,589	2545.8	− 2552	−6.2	× 47 / 278	−1
8	92,590	2573.4	− 2567	6.4	× 47 / 278	1.1
Sum, rounded to a whole point						−12

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	92,491	2426.9	− 2432	−5.1	× 44 / 291	−0.8
4	92,492	2451.6	− 2473	−21.4	× 53 / 291	−3.9
5	92,493	2487.5	− 2502	−14.5	× 46 / 291	−2.3
6	92,494	2499.0	− 2531	−32	× 45 / 291	−4.9
7	92,495	2504.1	− 2552	−47.9	× 51 / 291	−8.4
8	92,496	2537.5	− 2567	−29.5	× 52 / 291	−5.3
Sum, rounded to a whole point						−26

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	92,386	2406.9	− 2432	−25.1	× 34 / 278	−3.1
4	92,387	2429.8	− 2473	−43.2	× 51 / 278	−7.9
5	92,388	2481.8	− 2502	−20.2	× 54 / 278	−3.9
6	92,389	2492.5	− 2531	−38.5	× 51 / 278	−7.1
7	92,390	2518.0	− 2552	−34	× 46 / 278	−5.6
8	92,391	2499.4	− 2567	−67.6	× 42 / 278	−10.2
Sum, rounded to a whole point						−38

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	92,110	2381.3	− 2432	−50.7	× 54 / 299	−9.2
4	92,111	2413.8	− 2473	−59.2	× 38 / 299	−7.5
5	92,112	2481.5	− 2502	−20.5	× 56 / 299	−3.8
6	92,113	2486.0	− 2531	−45	× 51 / 299	−7.7
7	92,114	2508.1	− 2552	−43.9	× 47 / 299	−6.9
8	92,115	2511.2	− 2567	−55.8	× 53 / 299	−9.9
Sum, rounded to a whole point						−45

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −36, −25, −16, −11, 2, −12, −26, −38, −45 → −23
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 11 · 2016→2017: 9 · 2017→2018: 5 · 2018→2019: 13 · 2019→2022: 14 · 2022→2023: 14 · 2023→2024: 12 · 2024→2025: 7 → average 10.6
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 10.6 × 2.66 = 28.2. Upper limit 5.2, lower limit −51.2.

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.