Sd Global Vision Academy: math

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	73,717	2421.6	− 2436	−14.4	× 38 / 86	−6.4
4	73,719	2523.6	− 2485	38.6	× 27 / 86	12.1
5	73,721	2482.0	− 2528	−46	× 21 / 86	−11.2
Sum, rounded to a whole point						−5

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	68,388	2422.7	− 2436	−13.3	× 40 / 100	−5.3
4	68,391	2472.1	− 2485	−12.9	× 35 / 100	−4.5
5	68,392	2511.3	− 2528	−16.7	× 25 / 100	−4.2
Sum, rounded to a whole point						−14

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	70,205	2414.4	− 2436	−21.6	× 46 / 210	−4.7
4	70,208	2473.7	− 2485	−11.3	× 43 / 210	−2.3
5	70,209	2503.1	− 2528	−24.9	× 33 / 210	−3.9
6	70,211	2525.4	− 2552	−26.6	× 31 / 210	−3.9
7	70,214	2563.0	− 2567	−4	× 29 / 210	−0.6
8	70,215	2584.8	− 2586	−1.2	× 28 / 210	−0.2
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	70,336	2438.8	− 2436	2.8	× 48 / 223	0.6
4	70,338	2470.5	− 2485	−14.5	× 46 / 223	−3
5	70,340	2516.6	− 2528	−11.4	× 42 / 223	−2.1
6	70,342	2524.3	− 2552	−27.7	× 29 / 223	−3.6
7	70,344	2577.7	− 2567	10.7	× 29 / 223	1.4
8	70,346	2584.2	− 2586	−1.8	× 29 / 223	−0.2
Sum, rounded to a whole point						−7

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	70,855	2438.3	− 2436	2.3	× 47 / 233	0.5
4	70,856	2479.1	− 2485	−5.9	× 46 / 233	−1.2
5	70,857	2532.8	− 2528	4.8	× 44 / 233	0.9
6	70,858	2541.4	− 2552	−10.6	× 44 / 233	−2
7	70,859	2553.3	− 2567	−13.7	× 28 / 233	−1.6
8	70,860	2610.9	− 2586	24.9	× 24 / 233	2.6
Sum, rounded to a whole point						−1

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	70,935	2416.3	− 2436	−19.7	× 47 / 263	−3.5
4	70,936	2469.1	− 2485	−15.9	× 44 / 263	−2.7
5	70,937	2507.0	− 2528	−21	× 40 / 263	−3.2
6	70,938	2517.2	− 2552	−34.8	× 44 / 263	−5.8
7	70,939	2550.7	− 2567	−16.3	× 47 / 263	−2.9
8	70,940	2566.4	− 2586	−19.6	× 41 / 263	−3.1
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	70,931	2403.9	− 2436	−32.1	× 43 / 269	−5.1
4	70,932	2530.9	− 2485	45.9	× 44 / 269	7.5
5	70,933	2477.7	− 2528	−50.3	× 46 / 269	−8.6
6	70,934	2518.8	− 2552	−33.2	× 41 / 269	−5.1
7	70,935	2545.8	− 2567	−21.2	× 47 / 269	−3.7
8	70,936	2578.8	− 2586	−7.2	× 48 / 269	−1.3
Sum, rounded to a whole point						−16

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	70,905	2415.7	− 2436	−20.3	× 49 / 279	−3.6
4	70,906	2489.3	− 2485	4.3	× 46 / 279	0.7
5	70,907	2533.2	− 2528	5.2	× 44 / 279	0.8
6	70,908	2526.5	− 2552	−25.5	× 46 / 279	−4.2
7	70,909	2569.0	− 2567	2	× 44 / 279	0.3
8	70,910	2568.3	− 2586	−17.7	× 50 / 279	−3.2
Sum, rounded to a whole point						−9

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	70,621	2438.1	− 2436	2.1	× 47 / 286	0.3
4	70,622	2515.4	− 2485	30.4	× 50 / 286	5.3
5	70,623	2495.1	− 2528	−32.9	× 48 / 286	−5.5
6	70,624	2571.1	− 2552	19.1	× 48 / 286	3.2
7	70,625	2572.7	− 2567	5.7	× 48 / 286	1
8	70,626	2617.7	− 2586	31.7	× 45 / 286	5
Sum, rounded to a whole point						9

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −5, −14, −16, −7, −1, −21, −16, −9, 9 → −8.9
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 9 · 2016→2017: 2 · 2017→2018: 9 · 2018→2019: 6 · 2019→2022: 20 · 2022→2023: 5 · 2023→2024: 7 · 2024→2025: 18 → average 9.5
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 9.5 × 2.66 = 25.3. Upper limit 16.4, lower limit −34.2.

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.