John Swett Unified: math

The shaded band is this district'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	6,385	2397.1	− 2436	−38.9	× 113 / 871	−5
4	6,386	2441.5	− 2485	−43.5	× 125 / 871	−6.2
5	6,388	2436.9	− 2528	−91.1	× 115 / 871	−12
6	6,390	2464.8	− 2552	−87.2	× 121 / 871	−12.1
7	6,393	2512.8	− 2567	−54.2	× 130 / 871	−8.1
8	6,395	2481.2	− 2586	−104.8	× 124 / 871	−14.9
11	6,396	2552.7	− 2628	−75.3	× 143 / 871	−12.4
Sum, rounded to a whole point						−71

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	5,771	2373.3	− 2436	−62.7	× 106 / 863	−7.7
4	5,772	2444.7	− 2485	−40.3	× 122 / 863	−5.7
5	5,775	2465.8	− 2528	−62.2	× 124 / 863	−8.9
6	5,777	2458.3	− 2552	−93.7	× 112 / 863	−12.2
7	5,779	2491.4	− 2567	−75.6	× 120 / 863	−10.5
8	5,781	2515.5	− 2586	−70.5	× 137 / 863	−11.2
11	5,783	2570.5	− 2628	−57.5	× 142 / 863	−9.5
Sum, rounded to a whole point						−66

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	5,904	2386.7	− 2436	−49.3	× 107 / 795	−6.6
4	5,907	2429.0	− 2485	−56	× 106 / 795	−7.5
5	5,909	2447.0	− 2528	−81	× 120 / 795	−12.2
6	5,910	2470.4	− 2552	−81.6	× 112 / 795	−11.5
7	5,912	2501.9	− 2567	−65.1	× 93 / 795	−7.6
8	5,914	2487.6	− 2586	−98.4	× 119 / 795	−14.7
11	5,917	2558.6	− 2628	−69.4	× 138 / 795	−12
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	5,901	2367.5	− 2436	−68.5	× 108 / 712	−10.4
4	5,903	2451.6	− 2485	−33.4	× 106 / 712	−5
5	5,905	2443.0	− 2528	−85	× 101 / 712	−12.1
6	5,907	2473.8	− 2552	−78.2	× 98 / 712	−10.8
7	5,909	2504.9	− 2567	−62.1	× 105 / 712	−9.2
8	5,911	2483.5	− 2586	−102.5	× 86 / 712	−12.4
11	5,913	2549.4	− 2628	−78.6	× 108 / 712	−11.9
Sum, rounded to a whole point						−72

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	5,970	2382.4	− 2436	−53.6	× 109 / 729	−8
4	5,971	2435.4	− 2485	−49.6	× 99 / 729	−6.7
5	5,972	2443.0	− 2528	−85	× 112 / 729	−13.1
6	5,973	2444.8	− 2552	−107.2	× 91 / 729	−13.4
7	5,974	2481.1	− 2567	−85.9	× 96 / 729	−11.3
8	5,975	2517.2	− 2586	−68.8	× 100 / 729	−9.4
11	5,976	2577.4	− 2628	−50.6	× 122 / 729	−8.5
Sum, rounded to a whole point						−70

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	5,839	2373.0	− 2436	−63	× 84 / 610	−8.7
4	5,840	2404.9	− 2485	−80.1	× 102 / 610	−13.4
5	5,841	2427.9	− 2528	−100.1	× 88 / 610	−14.4
6	5,842	2440.3	− 2552	−111.7	× 71 / 610	−13
7	5,843	2442.6	− 2567	−124.4	× 90 / 610	−18.4
8	5,844	2462.5	− 2586	−123.5	× 94 / 610	−19
11	5,845	2528.2	− 2628	−99.8	× 81 / 610	−13.3
Sum, rounded to a whole point						−100

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	5,833	2356.9	− 2436	−79.1	× 89 / 611	−11.5
4	5,834	2429.6	− 2485	−55.4	× 95 / 611	−8.6
5	5,835	2431.7	− 2528	−96.3	× 98 / 611	−15.4
6	5,836	2433.3	− 2552	−118.7	× 78 / 611	−15.2
7	5,837	2457.1	− 2567	−109.9	× 72 / 611	−13
8	5,838	2459.7	− 2586	−126.3	× 91 / 611	−18.8
11	5,839	2535.2	− 2628	−92.8	× 88 / 611	−13.4
Sum, rounded to a whole point						−96

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	5,778	2351.5	− 2436	−84.5	× 83 / 605	−11.6
4	5,779	2406.3	− 2485	−78.7	× 94 / 605	−12.2
5	5,780	2446.4	− 2528	−81.6	× 89 / 605	−12
6	5,781	2428.8	− 2552	−123.2	× 101 / 605	−20.6
7	5,782	2460.0	− 2567	−107	× 81 / 605	−14.3
8	5,783	2461.4	− 2586	−124.6	× 81 / 605	−16.7
11	5,784	2527.8	− 2628	−100.2	× 76 / 605	−12.6
Sum, rounded to a whole point						−100

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	5,740	2362.6	− 2436	−73.4	× 90 / 647	−10.2
4	5,741	2400.6	− 2485	−84.4	× 85 / 647	−11.1
5	5,742	2437.0	− 2528	−91	× 99 / 647	−13.9
6	5,743	2455.7	− 2552	−96.3	× 90 / 647	−13.4
7	5,744	2464.3	− 2567	−102.7	× 106 / 647	−16.8
8	5,745	2458.6	− 2586	−127.4	× 84 / 647	−16.5
11	5,746	2542.0	− 2628	−86	× 93 / 647	−12.4
Sum, rounded to a whole point						−94

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	5,750	2368.8	− 2436	−67.2	× 72 / 636	−7.6
4	5,751	2399.6	− 2485	−85.4	× 89 / 636	−12
5	5,752	2428.5	− 2528	−99.5	× 92 / 636	−14.4
6	5,753	2423.9	− 2552	−128.1	× 94 / 636	−18.9
7	5,754	2473.4	− 2567	−93.6	× 96 / 636	−14.1
8	5,755	2471.7	− 2586	−114.3	× 107 / 636	−19.2
11	5,756	2516.4	− 2628	−111.6	× 86 / 636	−15.1
Sum, rounded to a whole point						−101

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −71, −66, −72, −72, −70, −100, −96, −100, −94, −101 → −84.2
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 5 · 2016→2017: 6 · 2017→2018: 0 · 2018→2019: 2 · 2019→2022: 30 · 2022→2023: 4 · 2023→2024: 4 · 2024→2025: 6 · 2025→2026: 7 → average 7.1
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 7.1 × 2.66 = 18.9. Upper limit −65.3, lower limit −103.1.

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 — for a district, the total across its schools. From 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.

Schools in John Swett Unified