Wilsona Elementary: english

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	38,875	2333.7	− 2432	−98.3	× 161 / 879	−18
4	38,878	2405.4	− 2473	−67.6	× 135 / 879	−10.4
5	38,879	2451.8	− 2502	−50.2	× 140 / 879	−8
6	38,881	2478.7	− 2531	−52.3	× 141 / 879	−8.4
7	38,883	2489.1	− 2552	−62.9	× 149 / 879	−10.7
8	38,886	2501.2	− 2567	−65.8	× 153 / 879	−11.5
Sum, rounded to a whole point						−67

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,025	2379.9	− 2432	−52.1	× 153 / 879	−9.1
4	36,026	2387.9	− 2473	−85.1	× 162 / 879	−15.7
5	36,028	2455.3	− 2502	−46.7	× 136 / 879	−7.2
6	36,031	2472.7	− 2531	−58.3	× 141 / 879	−9.4
7	36,032	2510.9	− 2552	−41.1	× 136 / 879	−6.4
8	36,034	2525.4	− 2567	−41.6	× 151 / 879	−7.1
Sum, rounded to a whole point						−55

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,741	2375.2	− 2432	−56.8	× 134 / 850	−9
4	36,742	2406.5	− 2473	−66.5	× 152 / 850	−11.9
5	36,744	2426.4	− 2502	−75.6	× 156 / 850	−13.9
6	36,747	2465.6	− 2531	−65.4	× 134 / 850	−10.3
7	36,748	2486.4	− 2552	−65.6	× 141 / 850	−10.9
8	36,751	2535.3	− 2567	−31.7	× 133 / 850	−5
Sum, rounded to a whole point						−61

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,706	2369.2	− 2432	−62.8	× 113 / 833	−8.5
4	36,708	2408.6	− 2473	−64.4	× 136 / 833	−10.5
5	36,710	2420.4	− 2502	−81.6	× 152 / 833	−14.9
6	36,712	2438.4	− 2531	−92.6	× 161 / 833	−17.9
7	36,714	2515.5	− 2552	−36.5	× 119 / 833	−5.2
8	36,716	2501.4	− 2567	−65.6	× 152 / 833	−12
Sum, rounded to a whole point						−69

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,867	2381.1	− 2432	−50.9	× 140 / 801	−8.9
4	36,868	2400.5	− 2473	−72.5	× 121 / 801	−11
5	36,869	2442.9	− 2502	−59.1	× 127 / 801	−9.4
6	36,870	2460.4	− 2531	−70.6	× 140 / 801	−12.3
7	36,871	2494.5	− 2552	−57.5	× 145 / 801	−10.4
8	36,872	2524.0	− 2567	−43	× 128 / 801	−6.9
Sum, rounded to a whole point						−59

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,758	2337.8	− 2432	−94.2	× 133 / 815	−15.4
4	36,759	2394.8	− 2473	−78.2	× 137 / 815	−13.1
5	36,760	2407.9	− 2502	−94.1	× 131 / 815	−15.1
6	36,761	2441.2	− 2531	−89.8	× 153 / 815	−16.9
7	36,762	2445.1	− 2552	−106.9	× 127 / 815	−16.7
8	36,763	2465.0	− 2567	−102	× 134 / 815	−16.8
Sum, rounded to a whole point						−94

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,775	2344.2	− 2432	−87.8	× 143 / 806	−15.6
4	36,776	2396.1	− 2473	−76.9	× 122 / 806	−11.6
5	36,777	2402.9	− 2502	−99.1	× 136 / 806	−16.7
6	36,778	2433.7	− 2531	−97.3	× 136 / 806	−16.4
7	36,779	2457.9	− 2552	−94.1	× 142 / 806	−16.6
8	36,780	2469.9	− 2567	−97.1	× 127 / 806	−15.3
Sum, rounded to a whole point						−92

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,623	2365.7	− 2432	−66.3	× 118 / 785	−10
4	36,624	2380.6	− 2473	−92.4	× 150 / 785	−17.7
5	36,625	2429.5	− 2502	−72.5	× 128 / 785	−11.8
6	36,626	2436.4	− 2531	−94.6	× 123 / 785	−14.8
7	36,627	2448.8	− 2552	−103.2	× 127 / 785	−16.7
8	36,628	2468.0	− 2567	−99	× 139 / 785	−17.5
Sum, rounded to a whole point						−88

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,460	2351.1	− 2432	−80.9	× 128 / 782	−13.2
4	36,461	2405.5	− 2473	−67.5	× 130 / 782	−11.2
5	36,462	2418.3	− 2502	−83.7	× 139 / 782	−14.9
6	36,463	2447.3	− 2531	−83.7	× 132 / 782	−14.1
7	36,464	2460.5	− 2552	−91.5	× 124 / 782	−14.5
8	36,465	2470.2	− 2567	−96.8	× 129 / 782	−16
Sum, rounded to a whole point						−84

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,452	2358.2	− 2432	−73.8	× 124 / 771	−11.9
4	36,453	2402.8	− 2473	−70.2	× 120 / 771	−10.9
5	36,454	2435.8	− 2502	−66.2	× 128 / 771	−11
6	36,455	2410.0	− 2531	−121	× 133 / 771	−20.9
7	36,456	2477.9	− 2552	−74.1	× 136 / 771	−13.1
8	36,457	2433.7	− 2567	−133.3	× 130 / 771	−22.5
Sum, rounded to a whole point						−90

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −67, −55, −61, −69, −59, −94, −92, −88, −84, −90 → −75.9
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 12 · 2016→2017: 6 · 2017→2018: 8 · 2018→2019: 10 · 2019→2022: 35 · 2022→2023: 2 · 2023→2024: 4 · 2024→2025: 4 · 2025→2026: 6 → average 9.7
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 9.7 × 2.66 = 25.8. Upper limit −50.1, lower limit −101.7.

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 Wilsona Elementary

Elementary schools

Middle schools

Challenger Middle