Schendel 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	44,900	2375.7	− 2432	−56.3	× 86 / 459	−10.5
4	44,901	2433.9	− 2473	−39.1	× 57 / 459	−4.9
5	44,904	2474.8	− 2502	−27.2	× 77 / 459	−4.6
6	44,905	2484.3	− 2531	−46.7	× 94 / 459	−9.6
7	44,908	2523.0	− 2552	−29	× 70 / 459	−4.4
8	44,909	2589.4	− 2567	22.4	× 75 / 459	3.7
Sum, rounded to a whole point						−30

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	41,626	2378.1	− 2432	−53.9	× 63 / 287	−11.8
4	41,628	2441.7	− 2473	−31.3	× 78 / 287	−8.5
5	41,630	2459.6	− 2502	−42.4	× 68 / 287	−10
6	41,632	2522.7	− 2531	−8.3	× 78 / 287	−2.3
Sum, rounded to a whole point						−33

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	42,655	2380.0	− 2432	−52	× 67 / 284	−12.3
4	42,656	2429.2	− 2473	−43.8	× 63 / 284	−9.7
5	42,658	2443.3	− 2502	−58.7	× 88 / 284	−18.2
6	42,661	2495.3	− 2531	−35.7	× 66 / 284	−8.3
Sum, rounded to a whole point						−48

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	42,665	2375.4	− 2432	−56.6	× 74 / 293	−14.3
4	42,668	2436.9	− 2473	−36.1	× 68 / 293	−8.4
5	42,669	2453.5	− 2502	−48.5	× 65 / 293	−10.8
6	42,672	2494.4	− 2531	−36.6	× 86 / 293	−10.7
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
3	42,795	2380.0	− 2432	−52	× 68 / 285	−12.4
4	42,796	2423.5	− 2473	−49.5	× 77 / 285	−13.4
5	42,797	2473.5	− 2502	−28.5	× 68 / 285	−6.8
6	42,798	2505.3	− 2531	−25.7	× 72 / 285	−6.5
Sum, rounded to a whole point						−39

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	41,663	2348.6	− 2432	−83.4	× 67 / 251	−22.3
4	41,664	2398.0	− 2473	−75	× 52 / 251	−15.5
5	41,665	2441.5	− 2502	−60.5	× 57 / 251	−13.7
6	41,666	2449.5	− 2531	−81.5	× 75 / 251	−24.4
Sum, rounded to a whole point						−76

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	42,538	2360.0	− 2432	−72	× 57 / 231	−17.8
4	42,539	2420.1	− 2473	−52.9	× 65 / 231	−14.9
5	42,540	2475.4	− 2502	−26.6	× 52 / 231	−6
6	42,541	2479.8	− 2531	−51.2	× 57 / 231	−12.6
Sum, rounded to a whole point						−51

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	42,559	2365.9	− 2432	−66.1	× 57 / 237	−15.9
4	42,560	2430.2	− 2473	−42.8	× 54 / 237	−9.8
5	42,561	2450.0	− 2502	−52	× 66 / 237	−14.5
6	42,562	2476.4	− 2531	−54.6	× 60 / 237	−13.8
Sum, rounded to a whole point						−54

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	42,394	2363.2	− 2432	−68.8	× 55 / 236	−16
4	42,395	2423.8	− 2473	−49.2	× 54 / 236	−11.3
5	42,396	2431.9	− 2502	−70.1	× 57 / 236	−16.9
6	42,397	2467.6	− 2531	−63.4	× 70 / 236	−18.8
Sum, rounded to a whole point						−63

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	42,153	2392.6	− 2432	−39.4	× 56 / 225	−9.8
4	42,154	2408.4	− 2473	−64.6	× 57 / 225	−16.4
5	42,155	2456.0	− 2502	−46	× 57 / 225	−11.7
6	42,156	2513.1	− 2531	−17.9	× 55 / 225	−4.4
Sum, rounded to a whole point						−42

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −30, −33, −48, −44, −39, −76, −51, −54, −63, −42 → −48
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 3 · 2016→2017: 15 · 2017→2018: 4 · 2018→2019: 5 · 2019→2021: 37 · 2021→2022: 25 · 2022→2023: 3 · 2023→2024: 9 · 2024→2025: 21 → average 13.6
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 13.6 × 2.66 = 36.2. Upper limit −11.8, lower limit −84.2.

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.