Covina-Valley Unified: 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	22,390	2418.8	− 2436	−17.2	× 800 / 6195	−2.2
4	22,392	2443.7	− 2485	−41.3	× 837 / 6195	−5.6
5	22,394	2483.5	− 2528	−44.5	× 871 / 6195	−6.3
6	22,396	2488.9	− 2552	−63.1	× 794 / 6195	−8.1
7	22,398	2507.3	− 2567	−59.7	× 861 / 6195	−8.3
8	22,400	2521.3	− 2586	−64.7	× 907 / 6195	−9.5
11	22,402	2557.6	− 2628	−70.4	× 1125 / 6195	−12.8
Sum, rounded to a whole point						−53

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	21,086	2435.9	− 2436	−0.1	× 758 / 6060	0
4	21,089	2459.8	− 2485	−25.2	× 785 / 6060	−3.3
5	21,091	2492.1	− 2528	−35.9	× 868 / 6060	−5.1
6	21,093	2503.3	− 2552	−48.7	× 849 / 6060	−6.8
7	21,095	2507.2	− 2567	−59.8	× 805 / 6060	−7.9
8	21,096	2529.7	− 2586	−56.3	× 860 / 6060	−8
11	21,098	2557.0	− 2628	−71	× 1135 / 6060	−13.3
Sum, rounded to a whole point						−44

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	21,445	2441.9	− 2436	5.9	× 820 / 6106	0.8
4	21,447	2464.0	− 2485	−21	× 769 / 6106	−2.6
5	21,448	2490.7	− 2528	−37.3	× 818 / 6106	−5
6	21,450	2512.5	− 2552	−39.5	× 846 / 6106	−5.5
7	21,452	2519.8	− 2567	−47.2	× 896 / 6106	−6.9
8	21,454	2534.1	− 2586	−51.9	× 808 / 6106	−6.9
11	21,457	2557.3	− 2628	−70.7	× 1149 / 6106	−13.3
Sum, rounded to a whole point						−39

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	21,431	2450.8	− 2436	14.8	× 724 / 5923	1.8
4	21,433	2473.9	− 2485	−11.1	× 825 / 5923	−1.5
5	21,435	2497.5	− 2528	−30.5	× 753 / 5923	−3.9
6	21,437	2505.2	− 2552	−46.8	× 828 / 5923	−6.5
7	21,439	2517.1	− 2567	−49.9	× 870 / 5923	−7.3
8	21,441	2524.4	− 2586	−61.6	× 886 / 5923	−9.2
11	21,443	2556.3	− 2628	−71.7	× 1037 / 5923	−12.6
Sum, rounded to a whole point						−39

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	21,603	2446.5	− 2436	10.5	× 739 / 5794	1.3
4	21,604	2481.1	− 2485	−3.9	× 739 / 5794	−0.5
5	21,605	2503.0	− 2528	−25	× 837 / 5794	−3.6
6	21,606	2499.8	− 2552	−52.2	× 769 / 5794	−6.9
7	21,607	2513.8	− 2567	−53.2	× 826 / 5794	−7.6
8	21,608	2539.4	− 2586	−46.6	× 880 / 5794	−7.1
11	21,609	2563.6	− 2628	−64.4	× 1004 / 5794	−11.2
Sum, rounded to a whole point						−36

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	21,566	2435.9	− 2436	−0.1	× 736 / 5461	0
4	21,567	2458.5	− 2485	−26.5	× 729 / 5461	−3.5
5	21,568	2482.5	− 2528	−45.5	× 729 / 5461	−6.1
6	21,569	2482.8	− 2552	−69.2	× 704 / 5461	−8.9
7	21,570	2500.5	− 2567	−66.5	× 730 / 5461	−8.9
8	21,571	2508.3	− 2586	−77.7	× 821 / 5461	−11.7
11	21,572	2527.3	− 2628	−100.7	× 1012 / 5461	−18.7
Sum, rounded to a whole point						−58

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	21,539	2445.3	− 2436	9.3	× 737 / 5437	1.3
4	21,540	2476.7	− 2485	−8.3	× 754 / 5437	−1.2
5	21,541	2494.2	− 2528	−33.8	× 743 / 5437	−4.6
6	21,542	2499.5	− 2552	−52.5	× 703 / 5437	−6.8
7	21,543	2506.8	− 2567	−60.2	× 732 / 5437	−8.1
8	21,544	2512.9	− 2586	−73.1	× 729 / 5437	−9.8
11	21,545	2540.9	− 2628	−87.1	× 1039 / 5437	−16.6
Sum, rounded to a whole point						−46

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	21,407	2441.4	− 2436	5.4	× 760 / 5486	0.7
4	21,408	2472.9	− 2485	−12.1	× 770 / 5486	−1.7
5	21,409	2499.3	− 2528	−28.7	× 773 / 5486	−4
6	21,410	2505.5	− 2552	−46.5	× 733 / 5486	−6.2
7	21,411	2512.1	− 2567	−54.9	× 727 / 5486	−7.3
8	21,412	2511.2	− 2586	−74.8	× 753 / 5486	−10.3
11	21,413	2536.9	− 2628	−91.1	× 970 / 5486	−16.1
Sum, rounded to a whole point						−45

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	21,316	2441.5	− 2436	5.5	× 732 / 5539	0.7
4	21,317	2467.2	− 2485	−17.8	× 774 / 5539	−2.5
5	21,318	2507.7	− 2528	−20.3	× 763 / 5539	−2.8
6	21,319	2519.1	− 2552	−32.9	× 759 / 5539	−4.5
7	21,320	2515.0	− 2567	−52	× 740 / 5539	−6.9
8	21,321	2523.9	− 2586	−62.1	× 745 / 5539	−8.4
11	21,322	2548.1	− 2628	−79.9	× 1026 / 5539	−14.8
Sum, rounded to a whole point						−39

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	21,370	2453.9	− 2436	17.9	× 712 / 5362	2.4
4	21,371	2472.1	− 2485	−12.9	× 743 / 5362	−1.8
5	21,372	2498.7	− 2528	−29.3	× 756 / 5362	−4.1
6	21,373	2535.2	− 2552	−16.8	× 740 / 5362	−2.3
7	21,374	2535.4	− 2567	−31.6	× 746 / 5362	−4.4
8	21,375	2537.9	− 2586	−48.1	× 746 / 5362	−6.7
11	21,376	2558.3	− 2628	−69.7	× 919 / 5362	−11.9
Sum, rounded to a whole point						−29

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −53, −44, −39, −39, −36, −58, −46, −45, −39, −29 → −42.8
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 9 · 2016→2017: 5 · 2017→2018: 0 · 2018→2019: 3 · 2019→2022: 22 · 2022→2023: 12 · 2023→2024: 1 · 2024→2025: 6 · 2025→2026: 10 → average 7.6
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 7.6 × 2.66 = 20.2. Upper limit −22.6, lower limit −63.

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.

Covina-Valley Unified