California School For The Deaf-Fremont (: math

The shaded band is this district'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
4	200	2411.9	− 2485	−73.1	× 14 / 125	−8.2
6	204	2380.2	− 2552	−171.8	× 27 / 125	−37.1
7	206	2394.9	− 2567	−172.1	× 19 / 125	−26.2
8	208	2400.6	− 2586	−185.4	× 26 / 125	−38.6
11	211	2419.7	− 2628	−208.3	× 39 / 125	−65
Sum, rounded to a whole point						−175

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
5	161	2414.9	− 2528	−113.1	× 15 / 117	−14.5
6	162	2389.2	− 2552	−162.8	× 15 / 117	−20.9
7	165	2430.3	− 2567	−136.7	× 30 / 117	−35.1
8	167	2420.7	− 2586	−165.3	× 19 / 117	−26.8
11	169	2433.2	− 2628	−194.8	× 38 / 117	−63.3
Sum, rounded to a whole point						−161

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	159	2359.4	− 2436	−76.6	× 11 / 128	−6.6
4	161	2426.0	− 2485	−59	× 11 / 128	−5.1
5	163	2394.4	− 2528	−133.6	× 11 / 128	−11.5
6	164	2398.7	− 2552	−153.3	× 18 / 128	−21.6
7	167	2376.6	− 2567	−190.4	× 16 / 128	−23.8
8	168	2443.2	− 2586	−142.8	× 32 / 128	−35.7
11	171	2434.2	− 2628	−193.8	× 29 / 128	−43.9
Sum, rounded to a whole point						−148

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	180	2389.2	− 2485	−95.8	× 13 / 112	−11.1
5	182	2452.8	− 2528	−75.2	× 12 / 112	−8.1
6	184	2340.8	− 2552	−211.2	× 18 / 112	−33.9
7	186	2439.0	− 2567	−128	× 17 / 112	−19.4
8	188	2384.7	− 2586	−201.3	× 15 / 112	−27
11	190	2463.2	− 2628	−164.8	× 37 / 112	−54.4
Sum, rounded to a whole point						−154

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	210	2392.0	− 2436	−44	× 11 / 118	−4.1
5	212	2398.0	− 2528	−130	× 16 / 118	−17.6
6	213	2398.3	− 2552	−153.7	× 14 / 118	−18.2
7	214	2395.0	− 2567	−172	× 20 / 118	−29.2
8	215	2377.2	− 2586	−208.8	× 22 / 118	−38.9
11	216	2471.0	− 2628	−157	× 35 / 118	−46.6
Sum, rounded to a whole point						−155

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	215	2393.7	− 2485	−91.3	× 11 / 72	−13.9
7	218	2398.8	− 2567	−168.2	× 17 / 72	−39.7
8	219	2400.5	− 2586	−185.5	× 15 / 72	−38.6
11	220	2441.0	− 2628	−187	× 29 / 72	−75.3
Sum, rounded to a whole point						−168

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
5	218	2387.4	− 2528	−140.6	× 14 / 67	−29.4
8	221	2385.6	− 2586	−200.4	× 18 / 67	−53.8
11	222	2401.7	− 2628	−226.3	× 35 / 67	−118.2
Sum, rounded to a whole point						−201

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	219	2413.1	− 2552	−138.9	× 12 / 49	−34
8	221	2395.3	− 2586	−190.7	× 13 / 49	−50.6
11	222	2478.6	− 2628	−149.4	× 24 / 49	−73.2
Sum, rounded to a whole point						−158

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	219	2399.5	− 2552	−152.5	× 13 / 45	−44.1
8	221	2419.8	− 2586	−166.2	× 11 / 45	−40.6
11	222	2468.7	− 2628	−159.3	× 21 / 45	−74.3
Sum, rounded to a whole point						−159

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −175, −161, −148, −154, −155, −168, −201, −158, −159 → −164.3
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 14 · 2016→2017: 13 · 2017→2018: 6 · 2018→2019: 1 · 2019→2022: 13 · 2022→2023: 33 · 2023→2024: 43 · 2024→2025: 1 → average 15.5
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 15.5 × 2.66 = 41.2. Upper limit −123.1, lower limit −205.5.

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 — for a district, the total across its schools. From 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.

Schools in California School For The Deaf-Fremont (

California School For The Deaf-Fremont