Family Partnership Home Study 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	84,446	2426.4	− 2432	−5.6	× 25 / 157	−0.9
4	84,447	2462.7	− 2473	−10.3	× 19 / 157	−1.2
5	84,450	2446.7	− 2502	−55.3	× 15 / 157	−5.3
6	84,451	2517.9	− 2531	−13.1	× 11 / 157	−0.9
7	84,454	2554.3	− 2552	2.3	× 28 / 157	0.4
8	84,455	2566.9	− 2567	−0.1	× 20 / 157	0
11	84,458	2621.1	− 2583	38.1	× 39 / 157	9.5
Sum, rounded to a whole point						2

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	78,253	2469.2	− 2432	37.2	× 18 / 181	3.7
4	78,254	2462.9	− 2473	−10.1	× 27 / 181	−1.5
5	78,256	2492.7	− 2502	−9.3	× 24 / 181	−1.2
7	78,261	2577.7	− 2552	25.7	× 23 / 181	3.3
8	78,262	2569.8	− 2567	2.8	× 36 / 181	0.6
11	78,265	2602.4	− 2583	19.4	× 53 / 181	5.7
Sum, rounded to a whole point						10

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,409	2466.7	− 2432	34.7	× 20 / 187	3.7
4	80,411	2504.1	− 2473	31.1	× 19 / 187	3.2
5	80,414	2511.5	− 2502	9.5	× 20 / 187	1
6	80,416	2526.3	− 2531	−4.7	× 15 / 187	−0.4
7	80,418	2554.1	− 2552	2.1	× 27 / 187	0.3
8	80,420	2560.9	− 2567	−6.1	× 32 / 187	−1
11	80,422	2610.7	− 2583	27.7	× 54 / 187	8
Sum, rounded to a whole point						15

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,566	2434.2	− 2432	2.2	× 24 / 179	0.3
4	80,569	2479.9	− 2473	6.9	× 19 / 179	0.7
5	80,570	2539.8	− 2502	37.8	× 19 / 179	4
6	80,573	2534.8	− 2531	3.8	× 23 / 179	0.5
7	80,574	2558.2	− 2552	6.2	× 25 / 179	0.9
8	80,577	2605.0	− 2567	38	× 25 / 179	5.3
11	80,578	2618.0	− 2583	35	× 44 / 179	8.6
Sum, rounded to a whole point						20

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,047	2444.9	− 2432	12.9	× 25 / 201	1.6
4	81,048	2507.7	− 2473	34.7	× 16 / 201	2.8
5	81,049	2532.1	− 2502	30.1	× 16 / 201	2.4
6	81,050	2529.8	− 2531	−1.2	× 13 / 201	−0.1
7	81,051	2543.0	− 2552	−9	× 31 / 201	−1.4
8	81,052	2581.1	− 2567	14.1	× 36 / 201	2.5
11	81,053	2559.8	− 2583	−23.2	× 64 / 201	−7.4
Sum, rounded to a whole point						0

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,260	2391.8	− 2432	−40.2	× 26 / 238	−4.4
4	81,261	2458.9	− 2473	−14.1	× 22 / 238	−1.3
5	81,262	2517.1	− 2502	15.1	× 27 / 238	1.7
6	81,263	2507.7	− 2531	−23.3	× 23 / 238	−2.3
7	81,264	2548.0	− 2552	−4	× 20 / 238	−0.3
8	81,265	2610.5	− 2567	43.5	× 53 / 238	9.7
11	81,266	2647.0	− 2583	64	× 67 / 238	18
Sum, rounded to a whole point						21

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,222	2411.5	− 2432	−20.5	× 22 / 195	−2.3
4	81,223	2437.3	− 2473	−35.7	× 21 / 195	−3.8
5	81,224	2497.6	− 2502	−4.4	× 23 / 195	−0.5
6	81,225	2511.3	− 2531	−19.7	× 18 / 195	−1.8
7	81,226	2523.1	− 2552	−28.9	× 34 / 195	−5
8	81,227	2557.1	− 2567	−9.9	× 29 / 195	−1.5
11	81,228	2614.4	− 2583	31.4	× 48 / 195	7.7
Sum, rounded to a whole point						−7

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,234	2415.4	− 2432	−16.6	× 25 / 184	−2.3
4	81,235	2494.3	− 2473	21.3	× 21 / 184	2.4
5	81,236	2470.0	− 2502	−32	× 24 / 184	−4.2
6	81,237	2514.9	− 2531	−16.1	× 15 / 184	−1.3
7	81,238	2538.1	− 2552	−13.9	× 22 / 184	−1.7
8	81,239	2570.0	− 2567	3	× 31 / 184	0.5
11	81,240	2632.4	− 2583	49.4	× 46 / 184	12.4
Sum, rounded to a whole point						6

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,902	2418.4	− 2432	−13.6	× 30 / 205	−2
4	80,903	2472.4	− 2473	−0.6	× 29 / 205	−0.1
5	80,904	2550.0	− 2502	48	× 19 / 205	4.4
6	80,905	2522.7	− 2531	−8.3	× 22 / 205	−0.9
7	80,906	2578.4	− 2552	26.4	× 26 / 205	3.3
8	80,907	2585.8	− 2567	18.8	× 28 / 205	2.6
11	80,908	2628.4	− 2583	45.4	× 51 / 205	11.3
Sum, rounded to a whole point						19

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. 2, 10, 15, 20, 0, 21, −7, 6, 19 → 9.6
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: 5 · 2017→2018: 5 · 2018→2019: 20 · 2019→2022: 21 · 2022→2023: 28 · 2023→2024: 13 · 2024→2025: 13 → average 14.1
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 14.1 × 2.66 = 37.5. Upper limit 47.1, lower limit −27.9.

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.