Whittier City: 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	38,464	2393.7	− 2436	−42.3	× 677 / 3903	−7.3
4	38,466	2427.3	− 2485	−57.7	× 677 / 3903	−10
5	38,467	2451.7	− 2528	−76.3	× 656 / 3903	−12.8
6	38,470	2475.3	− 2552	−76.7	× 627 / 3903	−12.3
7	38,472	2490.2	− 2567	−76.8	× 611 / 3903	−12
8	38,474	2504.9	− 2586	−81.1	× 655 / 3903	−13.6
Sum, rounded to a whole point						−68

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,721	2414.0	− 2436	−22	× 646 / 3917	−3.6
4	35,722	2438.4	− 2485	−46.6	× 703 / 3917	−8.4
5	35,724	2463.4	− 2528	−64.6	× 662 / 3917	−10.9
6	35,726	2470.8	− 2552	−81.2	× 648 / 3917	−13.4
7	35,728	2491.1	− 2567	−75.9	× 623 / 3917	−12.1
8	35,731	2514.0	− 2586	−72	× 635 / 3917	−11.7
Sum, rounded to a whole point						−60

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,422	2426.9	− 2436	−9.1	× 686 / 3955	−1.6
4	36,424	2455.6	− 2485	−29.4	× 645 / 3955	−4.8
5	36,426	2482.5	− 2528	−45.5	× 689 / 3955	−7.9
6	36,428	2483.2	− 2552	−68.8	× 651 / 3955	−11.3
7	36,431	2500.8	− 2567	−66.2	× 660 / 3955	−11
8	36,433	2520.5	− 2586	−65.5	× 624 / 3955	−10.3
Sum, rounded to a whole point						−47

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,413	2445.4	− 2436	9.4	× 666 / 3949	1.6
4	36,414	2461.4	− 2485	−23.6	× 666 / 3949	−4
5	36,416	2494.8	− 2528	−33.2	× 632 / 3949	−5.3
6	36,418	2492.5	− 2552	−59.5	× 680 / 3949	−10.2
7	36,421	2503.2	− 2567	−63.8	× 633 / 3949	−10.2
8	36,422	2535.5	− 2586	−50.5	× 672 / 3949	−8.6
Sum, rounded to a whole point						−37

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,578	2441.1	− 2436	5.1	× 646 / 3889	0.8
4	36,579	2478.5	− 2485	−6.5	× 652 / 3889	−1.1
5	36,580	2494.4	− 2528	−33.6	× 664 / 3889	−5.7
6	36,581	2501.2	− 2552	−50.8	× 598 / 3889	−7.8
7	36,582	2515.5	− 2567	−51.5	× 689 / 3889	−9.1
8	36,583	2532.4	− 2586	−53.6	× 640 / 3889	−8.8
Sum, rounded to a whole point						−32

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,483	2417.5	− 2436	−18.5	× 582 / 3582	−3
4	36,484	2453.5	− 2485	−31.5	× 576 / 3582	−5.1
5	36,485	2472.9	− 2528	−55.1	× 582 / 3582	−9
6	36,486	2471.4	− 2552	−80.6	× 591 / 3582	−13.3
7	36,487	2483.1	− 2567	−83.9	× 615 / 3582	−14.4
8	36,488	2499.0	− 2586	−87	× 636 / 3582	−15.4
Sum, rounded to a whole point						−60

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,488	2434.9	− 2436	−1.1	× 584 / 3537	−0.2
4	36,489	2454.9	− 2485	−30.1	× 589 / 3537	−5
5	36,490	2488.1	− 2528	−39.9	× 584 / 3537	−6.6
6	36,491	2479.2	− 2552	−72.8	× 574 / 3537	−11.8
7	36,492	2487.8	− 2567	−79.2	× 587 / 3537	−13.1
8	36,493	2512.7	− 2586	−73.3	× 619 / 3537	−12.8
Sum, rounded to a whole point						−50

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,336	2432.6	− 2436	−3.4	× 581 / 3435	−0.6
4	36,337	2468.6	− 2485	−16.4	× 571 / 3435	−2.7
5	36,338	2489.8	− 2528	−38.2	× 593 / 3435	−6.6
6	36,339	2485.6	− 2552	−66.4	× 547 / 3435	−10.6
7	36,340	2503.3	− 2567	−63.7	× 571 / 3435	−10.6
8	36,341	2507.5	− 2586	−78.5	× 572 / 3435	−13.1
Sum, rounded to a whole point						−44

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,175	2433.6	− 2436	−2.4	× 539 / 3411	−0.4
4	36,176	2463.6	− 2485	−21.4	× 588 / 3411	−3.7
5	36,177	2501.8	− 2528	−26.2	× 588 / 3411	−4.5
6	36,178	2494.2	− 2552	−57.8	× 577 / 3411	−9.8
7	36,179	2516.0	− 2567	−51	× 551 / 3411	−8.2
8	36,180	2522.0	− 2586	−64	× 568 / 3411	−10.7
Sum, rounded to a whole point						−37

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,167	2431.4	− 2436	−4.6	× 541 / 3356	−0.7
4	36,168	2465.9	− 2485	−19.1	× 537 / 3356	−3.1
5	36,169	2491.6	− 2528	−36.4	× 577 / 3356	−6.3
6	36,170	2510.0	− 2552	−42	× 563 / 3356	−7
7	36,171	2519.1	− 2567	−47.9	× 585 / 3356	−8.3
8	36,172	2544.2	− 2586	−41.8	× 553 / 3356	−6.9
Sum, rounded to a whole point						−32

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −68, −60, −47, −37, −32, −60, −50, −44, −37, −32 → −46.7
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 8 · 2016→2017: 13 · 2017→2018: 10 · 2018→2019: 5 · 2019→2022: 28 · 2022→2023: 10 · 2023→2024: 6 · 2024→2025: 7 · 2025→2026: 5 → average 10.2
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 10.2 × 2.66 = 27.1. Upper limit −19.6, lower limit −73.8.

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.

Whittier City