Scholarship Prep 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.

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,521	2375.6	− 2432	−56.4	× 45 / 182	−13.9
4	45,523	2430.6	− 2473	−42.4	× 32 / 182	−7.5
5	45,525	2456.0	− 2502	−46	× 39 / 182	−9.9
6	45,526	2497.7	− 2531	−33.3	× 32 / 182	−5.9
7	45,529	2495.5	− 2552	−56.5	× 21 / 182	−6.5
8	45,531	2532.3	− 2567	−34.7	× 13 / 182	−2.5
Sum, rounded to a whole point						−46

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,538	2435.7	− 2432	3.7	× 25 / 193	0.5
4	45,540	2451.9	− 2473	−21.1	× 46 / 193	−5
5	45,542	2512.1	− 2502	10.1	× 28 / 193	1.5
6	45,544	2537.1	− 2531	6.1	× 47 / 193	1.5
7	45,546	2561.2	− 2552	9.2	× 28 / 193	1.3
8	45,548	2585.4	− 2567	18.4	× 19 / 193	1.8
Sum, rounded to a whole point						2

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,686	2425.3	− 2432	−6.7	× 50 / 245	−1.4
4	45,687	2483.7	− 2473	10.7	× 27 / 245	1.2
5	45,688	2528.3	− 2502	26.3	× 45 / 245	4.8
6	45,689	2531.3	− 2531	0.3	× 49 / 245	0.1
7	45,690	2549.7	− 2552	−2.3	× 48 / 245	−0.5
8	45,691	2563.9	− 2567	−3.1	× 26 / 245	−0.3
Sum, rounded to a whole point						4

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,374	2388.2	− 2432	−43.8	× 63 / 311	−8.9
4	45,375	2437.3	− 2473	−35.7	× 59 / 311	−6.8
5	45,376	2448.3	− 2502	−53.7	× 51 / 311	−8.8
6	45,377	2482.3	− 2531	−48.7	× 55 / 311	−8.6
7	45,378	2563.8	− 2552	11.8	× 37 / 311	1.4
8	45,379	2543.1	− 2567	−23.9	× 46 / 311	−3.5
Sum, rounded to a whole point						−35

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,336	2396.8	− 2432	−35.2	× 64 / 388	−5.8
4	45,337	2426.1	− 2473	−46.9	× 75 / 388	−9.1
5	45,338	2458.7	− 2502	−43.3	× 62 / 388	−6.9
6	45,339	2491.0	− 2531	−40	× 83 / 388	−8.6
7	45,340	2540.8	− 2552	−11.2	× 58 / 388	−1.7
8	45,341	2519.6	− 2567	−47.4	× 46 / 388	−5.6
Sum, rounded to a whole point						−38

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,175	2361.5	− 2432	−70.5	× 50 / 377	−9.4
4	45,176	2417.5	− 2473	−55.5	× 60 / 377	−8.8
5	45,177	2469.0	− 2502	−33	× 68 / 377	−6
6	45,178	2515.1	− 2531	−15.9	× 67 / 377	−2.8
7	45,179	2522.1	− 2552	−29.9	× 78 / 377	−6.2
8	45,180	2533.5	− 2567	−33.5	× 54 / 377	−4.8
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	44,917	2404.8	− 2432	−27.2	× 69 / 387	−4.8
4	44,918	2414.3	− 2473	−58.7	× 54 / 387	−8.2
5	44,919	2473.9	− 2502	−28.1	× 58 / 387	−4.2
6	44,920	2515.8	− 2531	−15.2	× 67 / 387	−2.6
7	44,921	2545.3	− 2552	−6.7	× 59 / 387	−1
8	44,922	2550.4	− 2567	−16.6	× 80 / 387	−3.4
Sum, rounded to a whole point						−24

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −46, 2, 4, −35, −38, −38, −24 → −25
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2017→2018: 48 · 2018→2019: 2 · 2019→2022: 39 · 2022→2023: 3 · 2023→2024: 0 · 2024→2025: 14 → average 17.7
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 17.7 × 2.66 = 47.1. Upper limit 22.1, lower limit −72.1.

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 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.