Evergreen Union: 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	99,312	2416.9	− 2436	−19.1	× 134 / 709	−3.6
4	99,313	2462.6	− 2485	−22.4	× 109 / 709	−3.4
5	99,316	2498.1	− 2528	−29.9	× 130 / 709	−5.5
6	99,317	2516.3	− 2552	−35.7	× 118 / 709	−5.9
7	99,320	2534.2	− 2567	−32.8	× 108 / 709	−5
8	99,321	2565.1	− 2586	−20.9	× 110 / 709	−3.2
Sum, rounded to a whole point						−27

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	92,072	2425.0	− 2436	−11	× 120 / 740	−1.8
4	92,075	2451.9	− 2485	−33.1	× 145 / 740	−6.5
5	92,076	2484.9	− 2528	−43.1	× 107 / 740	−6.2
6	92,079	2497.7	− 2552	−54.3	× 135 / 740	−9.9
7	92,081	2551.7	− 2567	−15.3	× 127 / 740	−2.6
8	92,082	2551.5	− 2586	−34.5	× 106 / 740	−4.9
Sum, rounded to a whole point						−32

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	94,859	2442.6	− 2436	6.6	× 124 / 768	1.1
4	94,860	2457.5	− 2485	−27.5	× 124 / 768	−4.4
5	94,862	2474.7	− 2528	−53.3	× 152 / 768	−10.5
6	94,864	2507.6	− 2552	−44.4	× 112 / 768	−6.5
7	94,867	2533.3	− 2567	−33.7	× 125 / 768	−5.5
8	94,869	2571.8	− 2586	−14.2	× 131 / 768	−2.4
Sum, rounded to a whole point						−28

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	95,045	2426.7	− 2436	−9.3	× 127 / 765	−1.5
4	95,046	2462.1	− 2485	−22.9	× 123 / 765	−3.7
5	95,049	2489.3	− 2528	−38.7	× 124 / 765	−6.3
6	95,050	2504.7	− 2552	−47.3	× 148 / 765	−9.2
7	95,053	2545.1	− 2567	−21.9	× 111 / 765	−3.2
8	95,055	2555.3	− 2586	−30.7	× 132 / 765	−5.3
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	95,697	2450.9	− 2436	14.9	× 118 / 777	2.3
4	95,698	2465.2	− 2485	−19.8	× 117 / 777	−3
5	95,699	2493.9	− 2528	−34.1	× 133 / 777	−5.8
6	95,700	2498.4	− 2552	−53.6	× 130 / 777	−9
7	95,701	2544.2	− 2567	−22.8	× 146 / 777	−4.3
8	95,702	2556.6	− 2586	−29.4	× 121 / 777	−4.6
11	95,703	2498.6	− 2628	−129.4	× 12 / 777	−2
Sum, rounded to a whole point						−26

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	93,614	2422.9	− 2436	−13.1	× 111 / 718	−2
4	93,615	2456.5	− 2485	−28.5	× 131 / 718	−5.2
5	93,616	2477.0	− 2528	−51	× 105 / 718	−7.5
6	93,617	2492.4	− 2552	−59.6	× 123 / 718	−10.2
7	93,618	2518.1	− 2567	−48.9	× 121 / 718	−8.2
8	93,619	2534.3	− 2586	−51.7	× 116 / 718	−8.4
11	93,620	2515.7	− 2628	−112.3	× 11 / 718	−1.7
Sum, rounded to a whole point						−43

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	95,867	2412.7	− 2436	−23.3	× 121 / 717	−3.9
4	95,868	2474.4	− 2485	−10.6	× 107 / 717	−1.6
5	95,869	2484.4	− 2528	−43.6	× 134 / 717	−8.1
6	95,870	2506.6	− 2552	−45.4	× 119 / 717	−7.5
7	95,871	2511.0	− 2567	−56	× 122 / 717	−9.5
8	95,872	2534.1	− 2586	−51.9	× 114 / 717	−8.3
Sum, rounded to a whole point						−39

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	95,735	2435.5	− 2436	−0.5	× 125 / 728	−0.1
4	95,736	2468.9	− 2485	−16.1	× 123 / 728	−2.7
5	95,737	2490.4	− 2528	−37.6	× 107 / 728	−5.5
6	95,738	2529.1	− 2552	−22.9	× 125 / 728	−3.9
7	95,739	2538.6	− 2567	−28.4	× 113 / 728	−4.4
8	95,740	2544.1	− 2586	−41.9	× 120 / 728	−6.9
11	95,741	2537.5	− 2628	−90.5	× 15 / 728	−1.9
Sum, rounded to a whole point						−25

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	95,612	2415.8	− 2436	−20.2	× 131 / 742	−3.6
4	95,613	2476.6	− 2485	−8.4	× 129 / 742	−1.5
5	95,614	2507.5	− 2528	−20.5	× 117 / 742	−3.2
6	95,615	2523.2	− 2552	−28.8	× 118 / 742	−4.6
7	95,616	2543.2	− 2567	−23.8	× 119 / 742	−3.8
8	95,617	2540.2	− 2586	−45.8	× 116 / 742	−7.2
11	95,618	2505.5	− 2628	−122.5	× 12 / 742	−2
Sum, rounded to a whole point						−26

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	95,342	2444.5	− 2436	8.5	× 109 / 740	1.3
4	95,343	2469.4	− 2485	−15.6	× 139 / 740	−2.9
5	95,344	2512.1	− 2528	−15.9	× 128 / 740	−2.8
6	95,345	2540.9	− 2552	−11.1	× 117 / 740	−1.8
7	95,346	2524.2	− 2567	−42.8	× 123 / 740	−7.1
8	95,347	2545.7	− 2586	−40.3	× 110 / 740	−6
11	95,348	2520.6	− 2628	−107.4	× 14 / 740	−2
Sum, rounded to a whole point						−21

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	94,950	2432.9	− 2436	−3.1	× 119 / 748	−0.5
4	94,951	2486.5	− 2485	1.5	× 112 / 748	0.2
5	94,952	2508.3	− 2528	−19.7	× 143 / 748	−3.8
6	94,953	2539.7	− 2552	−12.3	× 127 / 748	−2.1
7	94,954	2582.4	− 2567	15.4	× 118 / 748	2.4
8	94,955	2530.8	− 2586	−55.2	× 111 / 748	−8.2
11	94,956	2571.9	− 2628	−56.1	× 18 / 748	−1.4
Sum, rounded to a whole point						−13

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −27, −32, −28, −29, −26, −43, −39, −25, −26, −21, −13 → −28.1
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: 4 · 2017→2018: 1 · 2018→2019: 3 · 2019→2021: 17 · 2021→2022: 4 · 2022→2023: 14 · 2023→2024: 1 · 2024→2025: 5 · 2025→2026: 8 → average 6.2
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 6.2 × 2.66 = 16.5. Upper limit −11.6, lower limit −44.6.

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 — 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.

Evergreen Union