Alpha: Jose Hernandez: 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
6	85,863	2460.5	− 2531	−70.5	× 125 / 156	−56.5
7	85,865	2515.0	− 2552	−37	× 31 / 156	−7.4
Sum, rounded to a whole point						−64

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	79,692	2477.9	− 2531	−53.1	× 125 / 299	−22.2
7	79,694	2507.2	− 2552	−44.8	× 141 / 299	−21.1
8	79,696	2545.5	− 2567	−21.5	× 33 / 299	−2.4
Sum, rounded to a whole point						−46

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
5	81,849	2453.9	− 2502	−48.1	× 114 / 409	−13.4
6	81,851	2491.6	− 2531	−39.4	× 59 / 409	−5.7
7	81,853	2491.4	− 2552	−60.6	× 118 / 409	−17.5
8	81,856	2552.3	− 2567	−14.7	× 118 / 409	−4.2
Sum, rounded to a whole point						−41

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
5	82,036	2448.5	− 2502	−53.5	× 53 / 321	−8.8
6	82,038	2471.1	− 2531	−59.9	× 106 / 321	−19.8
7	82,040	2520.8	− 2552	−31.2	× 60 / 321	−5.8
8	82,042	2536.4	− 2567	−30.6	× 102 / 321	−9.7
Sum, rounded to a whole point						−44

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
5	82,655	2406.0	− 2502	−96	× 42 / 259	−15.6
6	82,656	2478.0	− 2531	−53	× 64 / 259	−13.1
7	82,657	2512.9	− 2552	−39.1	× 98 / 259	−14.8
8	82,658	2515.2	− 2567	−51.8	× 55 / 259	−11
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
5	82,854	2396.6	− 2502	−105.4	× 32 / 219	−15.4
6	82,855	2440.3	− 2531	−90.7	× 64 / 219	−26.5
7	82,856	2478.7	− 2552	−73.3	× 59 / 219	−19.7
8	82,857	2490.1	− 2567	−76.9	× 64 / 219	−22.5
Sum, rounded to a whole point						−84

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,828	2318.0	− 2432	−114	× 58 / 265	−25
5	82,829	2408.1	− 2502	−93.9	× 28 / 265	−9.9
6	82,830	2426.5	− 2531	−104.5	× 58 / 265	−22.9
7	82,831	2459.3	− 2552	−92.7	× 61 / 265	−21.3
8	82,832	2480.0	− 2567	−87	× 60 / 265	−19.7
Sum, rounded to a whole point						−99

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,828	2319.1	− 2432	−112.9	× 50 / 270	−20.9
4	82,829	2346.0	− 2473	−127	× 58 / 270	−27.3
5	82,830	2378.1	− 2502	−123.9	× 24 / 270	−11
6	82,831	2432.0	− 2531	−99	× 31 / 270	−11.4
7	82,832	2424.9	− 2552	−127.1	× 54 / 270	−25.4
8	82,833	2487.7	− 2567	−79.3	× 53 / 270	−15.6
Sum, rounded to a whole point						−112

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,504	2340.2	− 2432	−91.8	× 53 / 289	−16.8
4	82,505	2370.6	− 2473	−102.4	× 51 / 289	−18.1
5	82,506	2410.9	− 2502	−91.1	× 57 / 289	−18
6	82,507	2400.3	− 2531	−130.7	× 51 / 289	−23.1
7	82,508	2463.8	− 2552	−88.2	× 27 / 289	−8.2
8	82,509	2463.4	− 2567	−103.6	× 50 / 289	−17.9
Sum, rounded to a whole point						−102

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −64, −46, −41, −44, −54, −84, −99, −112, −102 → −71.8
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 18 · 2016→2017: 5 · 2017→2018: 3 · 2018→2019: 10 · 2019→2022: 30 · 2022→2023: 15 · 2023→2024: 13 · 2024→2025: 10 → average 13
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 13 × 2.66 = 34.6. Upper limit −37.2, lower limit −106.4.

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.