La Vina 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	41,420	2328.9	− 2432	−103.1	× 29 / 169	−17.7
4	41,421	2415.2	− 2473	−57.8	× 40 / 169	−13.7
5	41,424	2413.6	− 2502	−88.4	× 25 / 169	−13.1
6	41,425	2512.3	− 2531	−18.7	× 20 / 169	−2.2
7	41,428	2519.4	− 2552	−32.6	× 23 / 169	−4.4
8	41,429	2493.8	− 2567	−73.2	× 32 / 169	−13.9
Sum, rounded to a whole point						−65

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,324	2360.5	− 2432	−71.5	× 33 / 182	−13
4	38,327	2365.5	− 2473	−107.5	× 32 / 182	−18.9
5	38,328	2461.2	− 2502	−40.8	× 41 / 182	−9.2
6	38,330	2498.7	− 2531	−32.3	× 28 / 182	−5
7	38,332	2567.0	− 2552	15	× 22 / 182	1.8
8	38,334	2555.8	− 2567	−11.2	× 26 / 182	−1.6
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
3	39,236	2388.7	− 2432	−43.3	× 26 / 190	−5.9
4	39,238	2401.5	− 2473	−71.5	× 35 / 190	−13.2
5	39,240	2451.1	− 2502	−50.9	× 31 / 190	−8.3
6	39,243	2508.2	− 2531	−22.8	× 44 / 190	−5.3
7	39,245	2529.3	− 2552	−22.7	× 32 / 190	−3.8
8	39,246	2586.8	− 2567	19.8	× 22 / 190	2.3
Sum, rounded to a whole point						−34

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	39,275	2412.6	− 2432	−19.4	× 31 / 194	−3.1
4	39,278	2411.1	− 2473	−61.9	× 23 / 194	−7.3
5	39,279	2489.3	− 2502	−12.7	× 36 / 194	−2.4
6	39,282	2490.5	− 2531	−40.5	× 32 / 194	−6.7
7	39,284	2525.3	− 2552	−26.7	× 42 / 194	−5.8
8	39,286	2540.5	− 2567	−26.5	× 30 / 194	−4.1
Sum, rounded to a whole point						−29

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	39,415	2346.6	− 2432	−85.4	× 22 / 177	−10.6
4	39,416	2407.3	− 2473	−65.7	× 30 / 177	−11.1
5	39,417	2474.5	− 2502	−27.5	× 22 / 177	−3.4
6	39,418	2521.3	− 2531	−9.7	× 32 / 177	−1.8
7	39,419	2532.7	− 2552	−19.3	× 30 / 177	−3.3
8	39,420	2562.2	− 2567	−4.8	× 41 / 177	−1.1
Sum, rounded to a whole point						−31

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	39,192	2385.0	− 2432	−47	× 21 / 143	−6.9
4	39,193	2425.4	− 2473	−47.6	× 24 / 143	−8
5	39,194	2442.6	− 2502	−59.4	× 23 / 143	−9.6
6	39,195	2470.8	− 2531	−60.2	× 21 / 143	−8.8
7	39,196	2548.7	− 2552	−3.3	× 26 / 143	−0.6
8	39,197	2566.3	− 2567	−0.7	× 28 / 143	−0.1
Sum, rounded to a whole point						−34

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	39,247	2379.4	− 2432	−52.6	× 23 / 138	−8.8
4	39,248	2422.5	− 2473	−50.5	× 20 / 138	−7.3
5	39,249	2458.4	− 2502	−43.6	× 24 / 138	−7.6
6	39,250	2515.4	− 2531	−15.6	× 23 / 138	−2.6
7	39,251	2536.2	− 2552	−15.8	× 23 / 138	−2.6
8	39,252	2579.5	− 2567	12.5	× 25 / 138	2.3
Sum, rounded to a whole point						−27

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	39,073	2329.8	− 2432	−102.2	× 27 / 143	−19.3
4	39,074	2421.9	− 2473	−51.1	× 22 / 143	−7.9
5	39,075	2478.1	− 2502	−23.9	× 21 / 143	−3.5
6	39,076	2517.2	− 2531	−13.8	× 27 / 143	−2.6
7	39,077	2547.5	− 2552	−4.5	× 22 / 143	−0.7
8	39,078	2531.4	− 2567	−35.6	× 24 / 143	−6
Sum, rounded to a whole point						−40

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,846	2368.9	− 2432	−63.1	× 24 / 138	−11
4	38,847	2358.1	− 2473	−114.9	× 25 / 138	−20.8
5	38,848	2436.8	− 2502	−65.2	× 22 / 138	−10.4
6	38,849	2493.4	− 2531	−37.6	× 22 / 138	−6
7	38,850	2566.6	− 2552	14.6	× 22 / 138	2.3
8	38,851	2536.5	− 2567	−30.5	× 23 / 138	−5.1
Sum, rounded to a whole point						−51

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −65, −46, −34, −29, −31, −34, −27, −40, −51 → −39.7
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 19 · 2016→2017: 12 · 2017→2018: 5 · 2018→2019: 2 · 2019→2022: 3 · 2022→2023: 7 · 2023→2024: 13 · 2024→2025: 11 → average 9
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 9 × 2.66 = 23.9. Upper limit −15.8, lower limit −63.6.

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.