Adelante 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	85,656	2397.4	− 2432	−34.6	× 43 / 128	−11.6
4	85,657	2440.5	− 2473	−32.5	× 38 / 128	−9.6
5	85,659	2430.8	− 2502	−71.2	× 23 / 128	−12.8
6	85,661	2512.2	− 2531	−18.8	× 24 / 128	−3.5
Sum, rounded to a whole point						−38

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,475	2374.9	− 2432	−57.1	× 36 / 133	−15.5
4	79,477	2406.5	− 2473	−66.5	× 41 / 133	−20.5
5	79,479	2516.8	− 2502	14.8	× 35 / 133	3.9
6	79,481	2474.1	− 2531	−56.9	× 21 / 133	−9
Sum, rounded to a whole point						−41

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,638	2377.6	− 2432	−54.4	× 41 / 148	−15.1
4	81,640	2380.4	− 2473	−92.6	× 33 / 148	−20.6
5	81,641	2461.0	− 2502	−41	× 40 / 148	−11.1
6	81,644	2498.9	− 2531	−32.1	× 34 / 148	−7.4
Sum, rounded to a whole point						−54

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,825	2359.5	− 2432	−72.5	× 41 / 154	−19.3
4	81,826	2403.3	− 2473	−69.7	× 40 / 154	−18.1
5	81,829	2437.5	− 2502	−64.5	× 34 / 154	−14.2
6	81,830	2505.0	− 2531	−26	× 39 / 154	−6.6
Sum, rounded to a whole point						−58

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,329	2379.0	− 2432	−53	× 36 / 148	−12.9
4	82,330	2384.9	− 2473	−88.1	× 38 / 148	−22.6
5	82,331	2444.5	− 2502	−57.5	× 40 / 148	−15.5
6	82,332	2449.1	− 2531	−81.9	× 34 / 148	−18.8
Sum, rounded to a whole point						−70

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,649	2391.9	− 2432	−40.1	× 28 / 105	−10.7
4	80,650	2426.5	− 2473	−46.5	× 22 / 105	−9.7
5	80,651	2449.0	− 2502	−53	× 23 / 105	−11.6
6	80,652	2457.7	− 2531	−73.3	× 32 / 105	−22.3
Sum, rounded to a whole point						−54

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,536	2360.9	− 2432	−71.1	× 40 / 156	−18.2
4	82,537	2446.9	− 2473	−26.1	× 42 / 156	−7
5	82,538	2441.6	− 2502	−60.4	× 38 / 156	−14.7
6	82,539	2490.6	− 2531	−40.4	× 36 / 156	−9.3
Sum, rounded to a whole point						−49

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,502	2346.4	− 2432	−85.6	× 36 / 153	−20.1
4	82,503	2397.4	− 2473	−75.6	× 41 / 153	−20.3
5	82,504	2466.6	− 2502	−35.4	× 39 / 153	−9
6	82,505	2515.0	− 2531	−16	× 37 / 153	−3.9
Sum, rounded to a whole point						−53

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,516	2420.2	− 2432	−11.8	× 42 / 160	−3.1
4	82,517	2428.0	− 2473	−45	× 39 / 160	−11
5	82,518	2485.7	− 2502	−16.3	× 40 / 160	−4.1
6	82,519	2510.4	− 2531	−20.6	× 39 / 160	−5
Sum, rounded to a whole point						−23

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,202	2441.0	− 2432	9	× 48 / 164	2.6
4	82,203	2482.2	− 2473	9.2	× 39 / 164	2.2
5	82,204	2496.6	− 2502	−5.4	× 37 / 164	−1.2
6	82,205	2514.5	− 2531	−16.5	× 40 / 164	−4
Sum, rounded to a whole point						0

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −38, −41, −54, −58, −70, −54, −49, −53, −23, 0 → −44
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: 13 · 2017→2018: 4 · 2018→2019: 12 · 2019→2021: 16 · 2021→2022: 5 · 2022→2023: 4 · 2023→2024: 30 · 2024→2025: 23 → average 12.2
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 12.2 × 2.66 = 32.5. Upper limit −11.5, lower limit −76.5.

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.