Niemes (John H.) 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	20,498	2371.9	− 2432	−60.1	× 90 / 371	−14.6
4	20,499	2430.1	− 2473	−42.9	× 100 / 371	−11.6
5	20,502	2505.5	− 2502	3.5	× 86 / 371	0.8
6	20,503	2519.9	− 2531	−11.1	× 95 / 371	−2.8
Sum, rounded to a whole point						−28

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	19,456	2389.3	− 2432	−42.7	× 102 / 377	−11.6
4	19,458	2431.3	− 2473	−41.7	× 94 / 377	−10.4
5	19,460	2486.3	− 2502	−15.7	× 96 / 377	−4
6	19,462	2551.6	− 2531	20.6	× 85 / 377	4.6
Sum, rounded to a whole point						−21

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	19,751	2407.2	− 2432	−24.8	× 96 / 373	−6.4
4	19,752	2429.0	− 2473	−44	× 93 / 373	−11
5	19,755	2456.7	− 2502	−45.3	× 88 / 373	−10.7
6	19,757	2500.3	− 2531	−30.7	× 96 / 373	−7.9
Sum, rounded to a whole point						−36

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	19,749	2412.6	− 2432	−19.4	× 100 / 366	−5.3
4	19,751	2444.3	− 2473	−28.7	× 89 / 366	−7
5	19,753	2473.6	− 2502	−28.4	× 95 / 366	−7.4
6	19,755	2480.9	− 2531	−50.1	× 82 / 366	−11.2
Sum, rounded to a whole point						−31

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	19,929	2396.0	− 2432	−36	× 101 / 365	−10
4	19,930	2467.6	− 2473	−5.4	× 90 / 365	−1.3
5	19,931	2491.0	− 2502	−11	× 87 / 365	−2.6
6	19,932	2506.1	− 2531	−24.9	× 87 / 365	−5.9
Sum, rounded to a whole point						−20

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	19,952	2419.9	− 2432	−12.1	× 75 / 349	−2.6
4	19,953	2481.1	− 2473	8.1	× 92 / 349	2.1
5	19,954	2470.4	− 2502	−31.6	× 85 / 349	−7.7
6	19,955	2507.5	− 2531	−23.5	× 97 / 349	−6.5
Sum, rounded to a whole point						−15

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	19,927	2411.2	− 2432	−20.8	× 91 / 347	−5.5
4	19,928	2465.4	− 2473	−7.6	× 74 / 347	−1.6
5	19,929	2497.2	− 2502	−4.8	× 97 / 347	−1.3
6	19,930	2529.8	− 2531	−1.2	× 85 / 347	−0.3
Sum, rounded to a whole point						−9

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	19,863	2405.9	− 2432	−26.1	× 87 / 345	−6.6
4	19,864	2453.0	− 2473	−20	× 91 / 345	−5.3
5	19,865	2509.2	− 2502	7.2	× 70 / 345	1.5
6	19,866	2506.6	− 2531	−24.4	× 97 / 345	−6.9
Sum, rounded to a whole point						−17

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	19,800	2430.9	− 2432	−1.1	× 99 / 358	−0.3
4	19,801	2455.5	− 2473	−17.5	× 87 / 358	−4.3
5	19,802	2489.3	− 2502	−12.7	× 95 / 358	−3.4
6	19,803	2543.4	− 2531	12.4	× 77 / 358	2.7
Sum, rounded to a whole point						−5

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −28, −21, −36, −31, −20, −15, −9, −17, −5 → −20.2
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 7 · 2016→2017: 15 · 2017→2018: 5 · 2018→2019: 11 · 2019→2022: 5 · 2022→2023: 6 · 2023→2024: 8 · 2024→2025: 12 → average 8.6
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 8.6 × 2.66 = 22.9. Upper limit 2.7, lower limit −43.1.

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.