Cesar E Chavez Elementary: 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	11,740	2327.0	− 2432	−105	× 78 / 299	−27.4
4	11,742	2351.5	− 2473	−121.5	× 69 / 299	−28
5	11,744	2437.3	− 2502	−64.7	× 74 / 299	−16
6	11,746	2453.7	− 2531	−77.3	× 78 / 299	−20.2
Sum, rounded to a whole point						−92

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	10,753	2344.6	− 2432	−87.4	× 46 / 243	−16.5
4	10,754	2395.7	− 2473	−77.3	× 76 / 243	−24.2
5	10,756	2421.9	− 2502	−80.1	× 56 / 243	−18.5
6	10,758	2459.1	− 2531	−71.9	× 65 / 243	−19.2
Sum, rounded to a whole point						−78

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,079	2345.3	− 2432	−86.7	× 52 / 201	−22.4
4	11,080	2412.6	− 2473	−60.4	× 50 / 201	−15
5	11,083	2441.5	− 2502	−60.5	× 52 / 201	−15.7
6	11,084	2448.7	− 2531	−82.3	× 47 / 201	−19.2
Sum, rounded to a whole point						−72

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,090	2313.9	− 2432	−118.1	× 47 / 196	−28.3
4	11,093	2408.3	− 2473	−64.7	× 52 / 196	−17.2
5	11,094	2422.3	− 2502	−79.7	× 45 / 196	−18.3
6	11,097	2479.3	− 2531	−51.7	× 52 / 196	−13.7
Sum, rounded to a whole point						−78

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,160	2337.9	− 2432	−94.1	× 55 / 204	−25.4
4	11,161	2391.0	− 2473	−82	× 47 / 204	−18.9
5	11,162	2430.7	− 2502	−71.3	× 51 / 204	−17.8
6	11,163	2480.9	− 2531	−50.1	× 51 / 204	−12.5
Sum, rounded to a whole point						−75

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,008	2313.2	− 2432	−118.8	× 76 / 241	−37.5
4	11,009	2354.4	− 2473	−118.6	× 71 / 241	−34.9
5	11,010	2407.4	− 2502	−94.6	× 51 / 241	−20
6	11,011	2433.8	− 2531	−97.2	× 43 / 241	−17.3
Sum, rounded to a whole point						−110

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,167	2335.2	− 2432	−96.8	× 70 / 267	−25.4
4	11,168	2365.0	− 2473	−108	× 74 / 267	−29.9
5	11,169	2413.1	− 2502	−88.9	× 71 / 267	−23.6
6	11,170	2458.2	− 2531	−72.8	× 52 / 267	−14.2
Sum, rounded to a whole point						−93

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,150	2347.1	− 2432	−84.9	× 56 / 258	−18.4
4	11,151	2358.0	− 2473	−115	× 69 / 258	−30.8
5	11,152	2394.2	− 2502	−107.8	× 68 / 258	−28.4
6	11,153	2421.0	− 2531	−110	× 65 / 258	−27.7
Sum, rounded to a whole point						−105

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,113	2347.9	− 2432	−84.1	× 48 / 235	−17.2
4	11,114	2376.9	− 2473	−96.1	× 48 / 235	−19.6
5	11,115	2415.9	− 2502	−86.1	× 72 / 235	−26.4
6	11,116	2441.3	− 2531	−89.7	× 67 / 235	−25.6
Sum, rounded to a whole point						−89

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,050	2326.3	− 2432	−105.7	× 75 / 248	−32
4	11,051	2400.1	− 2473	−72.9	× 48 / 248	−14.1
5	11,052	2443.4	− 2502	−58.6	× 52 / 248	−12.3
6	11,053	2460.1	− 2531	−70.9	× 73 / 248	−20.9
Sum, rounded to a whole point						−79

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −92, −78, −72, −78, −75, −110, −93, −105, −89, −79 → −87.1
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: 6 · 2017→2018: 6 · 2018→2019: 3 · 2019→2021: 35 · 2021→2022: 17 · 2022→2023: 12 · 2023→2024: 16 · 2024→2025: 10 → average 13.2
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 13.2 × 2.66 = 35.1. Upper limit −52, lower limit −122.2.

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.