Anaheim Elementary: 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	47,798	2381.1	− 2436	−54.9	× 2707 / 10603	−14
4	47,801	2424.2	− 2485	−60.8	× 2639 / 10603	−15.1
5	47,802	2443.1	− 2528	−84.9	× 2609 / 10603	−20.9
6	47,805	2475.5	− 2552	−76.5	× 2648 / 10603	−19.1
Sum, rounded to a whole point						−69

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	44,456	2387.3	− 2436	−48.7	× 2552 / 10378	−12
4	44,457	2427.2	− 2485	−57.8	× 2651 / 10378	−14.8
5	44,460	2448.2	− 2528	−79.8	× 2592 / 10378	−19.9
6	44,462	2473.5	− 2552	−78.5	× 2583 / 10378	−19.5
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	45,616	2388.8	− 2436	−47.2	× 2516 / 10204	−11.6
4	45,619	2424.6	− 2485	−60.4	× 2497 / 10204	−14.8
5	45,620	2440.3	− 2528	−87.7	× 2621 / 10204	−22.5
6	45,623	2470.1	− 2552	−81.9	× 2570 / 10204	−20.6
Sum, rounded to a whole point						−70

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,634	2397.0	− 2436	−39	× 2419 / 9922	−9.5
4	45,636	2431.7	− 2485	−53.3	× 2466 / 9922	−13.2
5	45,638	2447.1	− 2528	−80.9	× 2450 / 9922	−20
6	45,640	2475.3	− 2552	−76.7	× 2587 / 9922	−20
Sum, rounded to a whole point						−63

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,815	2401.9	− 2436	−34.1	× 2302 / 9350	−8.4
4	45,816	2441.2	− 2485	−43.8	× 2298 / 9350	−10.8
5	45,817	2457.9	− 2528	−70.1	× 2364 / 9350	−17.7
6	45,818	2482.1	− 2552	−69.9	× 2386 / 9350	−17.8
Sum, rounded to a whole point						−55

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,623	2381.3	− 2436	−54.7	× 1936 / 8204	−12.9
4	45,624	2419.7	− 2485	−65.3	× 1966 / 8204	−15.6
5	45,625	2433.9	− 2528	−94.1	× 2163 / 8204	−24.8
6	45,626	2461.7	− 2552	−90.3	× 2139 / 8204	−23.5
Sum, rounded to a whole point						−77

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,605	2386.9	− 2436	−49.1	× 1954 / 8001	−12
4	45,606	2428.2	− 2485	−56.8	× 1957 / 8001	−13.9
5	45,607	2440.3	− 2528	−87.7	× 1944 / 8001	−21.3
6	45,608	2458.4	− 2552	−93.6	× 2146 / 8001	−25.1
Sum, rounded to a whole point						−72

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,464	2395.1	− 2436	−40.9	× 1862 / 7676	−9.9
4	45,465	2426.1	− 2485	−58.9	× 1934 / 7676	−14.8
5	45,466	2438.4	− 2528	−89.6	× 1950 / 7676	−22.8
6	45,467	2459.3	− 2552	−92.7	× 1930 / 7676	−23.3
Sum, rounded to a whole point						−71

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,228	2392.9	− 2436	−43.1	× 1791 / 7435	−10.4
4	45,229	2427.2	− 2485	−57.8	× 1817 / 7435	−14.1
5	45,230	2441.7	− 2528	−86.3	× 1904 / 7435	−22.1
6	45,231	2459.7	− 2552	−92.3	× 1923 / 7435	−23.9
Sum, rounded to a whole point						−70

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,122	2388.1	− 2436	−47.9	× 1735 / 7113	−11.7
4	45,123	2427.1	− 2485	−57.9	× 1743 / 7113	−14.2
5	45,124	2441.9	− 2528	−86.1	× 1775 / 7113	−21.5
6	45,125	2462.0	− 2552	−90	× 1860 / 7113	−23.5
Sum, rounded to a whole point						−71

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −69, −66, −70, −63, −55, −77, −72, −71, −70, −71 → −68.4
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 3 · 2016→2017: 4 · 2017→2018: 7 · 2018→2019: 8 · 2019→2022: 22 · 2022→2023: 5 · 2023→2024: 1 · 2024→2025: 1 · 2025→2026: 1 → average 5.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 5.8 × 2.66 = 15.4. Upper limit −53, lower limit −83.8.

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.

Anaheim Elementary