Westside Union 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	38,313	2413.8	− 2432	−18.2	× 987 / 5994	−3
4	38,315	2457.7	− 2473	−15.3	× 929 / 5994	−2.4
5	38,318	2495.7	− 2502	−6.3	× 986 / 5994	−1
6	38,320	2526.6	− 2531	−4.4	× 976 / 5994	−0.7
7	38,322	2542.2	− 2552	−9.8	× 1052 / 5994	−1.7
8	38,324	2572.4	− 2567	5.4	× 1064 / 5994	1
Sum, rounded to a whole point						−8

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,581	2412.1	− 2432	−19.9	× 984 / 6106	−3.2
4	35,583	2456.6	− 2473	−16.4	× 1038 / 6106	−2.8
5	35,584	2495.9	− 2502	−6.1	× 971 / 6106	−1
6	35,587	2527.4	− 2531	−3.6	× 1033 / 6106	−0.6
7	35,589	2551.2	− 2552	−0.8	× 1023 / 6106	−0.1
8	35,591	2577.1	− 2567	10.1	× 1057 / 6106	1.7
Sum, rounded to a whole point						−6

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,284	2408.5	− 2432	−23.5	× 1013 / 6236	−3.8
4	36,287	2454.1	− 2473	−18.9	× 1041 / 6236	−3.2
5	36,289	2488.4	− 2502	−13.6	× 1079 / 6236	−2.4
6	36,291	2523.8	− 2531	−7.2	× 1052 / 6236	−1.2
7	36,292	2549.7	− 2552	−2.3	× 1036 / 6236	−0.4
8	36,295	2571.5	− 2567	4.5	× 1015 / 6236	0.7
Sum, rounded to a whole point						−10

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,270	2424.8	− 2432	−7.2	× 983 / 6247	−1.1
4	36,272	2455.6	− 2473	−17.4	× 1058 / 6247	−2.9
5	36,274	2493.6	− 2502	−8.4	× 1064 / 6247	−1.4
6	36,276	2525.0	− 2531	−6	× 1087 / 6247	−1
7	36,278	2540.4	− 2552	−11.6	× 1039 / 6247	−1.9
8	36,280	2558.5	− 2567	−8.5	× 1016 / 6247	−1.4
Sum, rounded to a whole point						−10

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,433	2422.5	− 2432	−9.5	× 1046 / 6400	−1.6
4	36,434	2464.3	− 2473	−8.7	× 1018 / 6400	−1.4
5	36,435	2489.2	− 2502	−12.8	× 1084 / 6400	−2.2
6	36,436	2529.5	− 2531	−1.5	× 1115 / 6400	−0.3
7	36,437	2551.4	− 2552	−0.6	× 1106 / 6400	−0.1
8	36,438	2567.1	− 2567	0.1	× 1031 / 6400	0
Sum, rounded to a whole point						−5

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,330	2404.0	− 2432	−28	× 946 / 5991	−4.4
4	36,331	2461.5	− 2473	−11.5	× 1018 / 5991	−2
5	36,332	2484.1	− 2502	−17.9	× 991 / 5991	−3
6	36,333	2513.2	− 2531	−17.8	× 1079 / 5991	−3.2
7	36,334	2541.9	− 2552	−10.1	× 964 / 5991	−1.6
8	36,335	2542.3	− 2567	−24.7	× 993 / 5991	−4.1
Sum, rounded to a whole point						−18

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,335	2414.8	− 2432	−17.2	× 975 / 6021	−2.8
4	36,336	2450.9	− 2473	−22.1	× 1011 / 6021	−3.7
5	36,337	2490.8	− 2502	−11.2	× 1067 / 6021	−2
6	36,338	2510.4	− 2531	−20.6	× 1034 / 6021	−3.5
7	36,339	2542.4	− 2552	−9.6	× 973 / 6021	−1.6
8	36,340	2551.7	− 2567	−15.3	× 961 / 6021	−2.4
Sum, rounded to a whole point						−16

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,187	2410.2	− 2432	−21.8	× 897 / 5960	−3.3
4	36,188	2455.9	− 2473	−17.1	× 990 / 5960	−2.8
5	36,189	2488.7	− 2502	−13.3	× 1025 / 5960	−2.3
6	36,190	2523.8	− 2531	−7.2	× 1110 / 5960	−1.3
7	36,191	2526.3	− 2552	−25.7	× 952 / 5960	−4.1
8	36,192	2550.8	− 2567	−16.2	× 986 / 5960	−2.7
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	36,028	2416.4	− 2432	−15.6	× 964 / 5952	−2.5
4	36,029	2460.0	− 2473	−13	× 917 / 5952	−2
5	36,030	2495.6	− 2502	−6.4	× 1016 / 5952	−1.1
6	36,031	2523.4	− 2531	−7.6	× 1083 / 5952	−1.4
7	36,032	2531.9	− 2552	−20.1	× 1022 / 5952	−3.5
8	36,033	2544.5	− 2567	−22.5	× 950 / 5952	−3.6
Sum, rounded to a whole point						−14

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,026	2416.8	− 2432	−15.2	× 944 / 5885	−2.4
4	36,027	2447.4	− 2473	−25.6	× 994 / 5885	−4.3
5	36,028	2498.3	− 2502	−3.7	× 930 / 5885	−0.6
6	36,029	2526.0	− 2531	−5	× 1036 / 5885	−0.9
7	36,030	2530.5	− 2552	−21.5	× 976 / 5885	−3.6
8	36,031	2544.1	− 2567	−22.9	× 1005 / 5885	−3.9
Sum, rounded to a whole point						−16

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −8, −6, −10, −10, −5, −18, −16, −17, −14, −16 → −12
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 2 · 2016→2017: 4 · 2017→2018: 0 · 2018→2019: 5 · 2019→2022: 13 · 2022→2023: 2 · 2023→2024: 1 · 2024→2025: 3 · 2025→2026: 2 → average 3.6
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 3.6 × 2.66 = 9.6. Upper limit −2.4, lower limit −21.6.

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.

Westside Union Elementary