New Horizons Charter 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	28,622	2371.6	− 2436	−64.4	× 24 / 79	−19.6
4	28,623	2446.4	− 2485	−38.6	× 17 / 79	−8.3
5	28,626	2468.2	− 2528	−59.8	× 17 / 79	−12.9
6	28,627	2451.4	− 2552	−100.6	× 21 / 79	−26.7
Sum, rounded to a whole point						−67

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	26,731	2394.9	− 2436	−41.1	× 23 / 113	−8.4
4	26,733	2413.9	− 2485	−71.1	× 20 / 113	−12.6
5	26,736	2470.7	− 2528	−57.3	× 20 / 113	−10.1
6	26,737	2500.0	− 2552	−52	× 27 / 113	−12.4
7	26,739	2497.5	− 2567	−69.5	× 23 / 113	−14.1
Sum, rounded to a whole point						−58

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	27,239	2398.8	− 2436	−37.2	× 36 / 155	−8.6
4	27,240	2456.2	− 2485	−28.8	× 25 / 155	−4.6
5	27,243	2451.5	− 2528	−76.5	× 24 / 155	−11.8
6	27,245	2508.9	− 2552	−43.1	× 24 / 155	−6.7
7	27,246	2532.3	− 2567	−34.7	× 26 / 155	−5.8
8	27,248	2569.7	− 2586	−16.3	× 20 / 155	−2.1
Sum, rounded to a whole point						−40

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	27,195	2451.3	− 2436	15.3	× 41 / 177	3.5
4	27,197	2470.8	− 2485	−14.2	× 34 / 177	−2.7
5	27,199	2469.6	− 2528	−58.4	× 24 / 177	−7.9
6	27,201	2498.3	− 2552	−53.7	× 23 / 177	−7
7	27,203	2538.7	− 2567	−28.3	× 27 / 177	−4.3
8	27,205	2533.6	− 2586	−52.4	× 28 / 177	−8.3
Sum, rounded to a whole point						−27

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	27,300	2432.6	− 2436	−3.4	× 33 / 175	−0.6
4	27,301	2475.4	− 2485	−9.6	× 35 / 175	−1.9
5	27,302	2497.6	− 2528	−30.4	× 30 / 175	−5.2
6	27,303	2507.9	− 2552	−44.1	× 30 / 175	−7.6
7	27,304	2492.4	− 2567	−74.6	× 19 / 175	−8.1
8	27,305	2511.2	− 2586	−74.8	× 28 / 175	−12
Sum, rounded to a whole point						−35

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	27,207	2395.3	− 2436	−40.7	× 39 / 178	−8.9
4	27,208	2484.3	− 2485	−0.7	× 22 / 178	−0.1
5	27,209	2416.4	− 2528	−111.6	× 38 / 178	−23.8
6	27,210	2458.5	− 2552	−93.5	× 21 / 178	−11
7	27,211	2469.9	− 2567	−97.1	× 36 / 178	−19.6
8	27,212	2522.8	− 2586	−63.2	× 22 / 178	−7.8
Sum, rounded to a whole point						−71

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	27,160	2422.6	− 2436	−13.4	× 20 / 162	−1.7
4	27,161	2455.3	− 2485	−29.7	× 36 / 162	−6.6
5	27,162	2426.7	− 2528	−101.3	× 13 / 162	−8.1
6	27,163	2481.9	− 2552	−70.1	× 37 / 162	−16
7	27,164	2482.0	− 2567	−85	× 24 / 162	−12.6
8	27,165	2491.7	− 2586	−94.3	× 32 / 162	−18.6
Sum, rounded to a whole point						−64

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	27,010	2424.3	− 2436	−11.7	× 23 / 147	−1.8
4	27,011	2489.3	− 2485	4.3	× 21 / 147	0.6
5	27,012	2434.1	− 2528	−93.9	× 28 / 147	−17.9
6	27,013	2454.5	− 2552	−97.5	× 18 / 147	−11.9
7	27,014	2466.2	− 2567	−100.8	× 29 / 147	−19.9
8	27,015	2476.8	− 2586	−109.2	× 28 / 147	−20.8
Sum, rounded to a whole point						−72

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	26,893	2432.5	− 2436	−3.5	× 16 / 111	−0.5
4	26,894	2453.1	− 2485	−31.9	× 15 / 111	−4.3
5	26,895	2499.9	− 2528	−28.1	× 20 / 111	−5.1
6	26,896	2507.5	− 2552	−44.5	× 19 / 111	−7.6
7	26,897	2508.1	− 2567	−58.9	× 17 / 111	−9
8	26,898	2555.5	− 2586	−30.5	× 24 / 111	−6.6
Sum, rounded to a whole point						−33

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −67, −58, −40, −27, −35, −71, −64, −72, −33 → −51.9
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: 18 · 2017→2018: 13 · 2018→2019: 8 · 2019→2022: 36 · 2022→2023: 7 · 2023→2024: 8 · 2024→2025: 39 → average 17.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 17.3 × 2.66 = 46. Upper limit −5.9, lower limit −97.9.

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.