Campbell Union: 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	86,399	2428.8	− 2432	−3.2	× 867 / 4734	−0.6
4	86,402	2463.5	− 2473	−9.5	× 847 / 4734	−1.7
5	86,403	2500.8	− 2502	−1.2	× 814 / 4734	−0.2
6	86,406	2512.9	− 2531	−18.1	× 768 / 4734	−2.9
7	86,407	2550.5	− 2552	−1.5	× 695 / 4734	−0.2
8	86,410	2552.8	− 2567	−14.2	× 743 / 4734	−2.2
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	80,184	2435.5	− 2432	3.5	× 853 / 4731	0.6
4	80,187	2471.0	− 2473	−2	× 850 / 4731	−0.4
5	80,188	2511.9	− 2502	9.9	× 812 / 4731	1.7
6	80,191	2524.3	− 2531	−6.7	× 765 / 4731	−1.1
7	80,192	2542.8	− 2552	−9.2	× 755 / 4731	−1.5
8	80,195	2566.3	− 2567	−0.7	× 696 / 4731	−0.1
Sum, rounded to a whole point						−1

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,391	2442.7	− 2432	10.7	× 792 / 4587	1.8
4	82,394	2467.7	− 2473	−5.3	× 827 / 4587	−1
5	82,395	2514.9	− 2502	12.9	× 815 / 4587	2.3
6	82,397	2529.7	− 2531	−1.3	× 747 / 4587	−0.2
7	82,399	2551.0	− 2552	−1	× 707 / 4587	−0.2
8	82,402	2561.1	− 2567	−5.9	× 699 / 4587	−0.9
Sum, rounded to a whole point						2

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,597	2449.1	− 2432	17.1	× 810 / 4542	3
4	82,599	2486.8	− 2473	13.8	× 776 / 4542	2.4
5	82,601	2508.3	− 2502	6.3	× 801 / 4542	1.1
6	82,603	2539.2	− 2531	8.2	× 747 / 4542	1.3
7	82,605	2558.4	− 2552	6.4	× 724 / 4542	1
8	82,607	2569.7	− 2567	2.7	× 684 / 4542	0.4
Sum, rounded to a whole point						9

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	83,211	2450.3	− 2432	18.3	× 791 / 4481	3.2
4	83,212	2483.5	− 2473	10.5	× 781 / 4481	1.8
5	83,213	2528.8	− 2502	26.8	× 767 / 4481	4.6
6	83,214	2538.7	− 2531	7.7	× 736 / 4481	1.3
7	83,215	2559.7	− 2552	7.7	× 701 / 4481	1.2
8	83,216	2582.9	− 2567	15.9	× 705 / 4481	2.5
Sum, rounded to a whole point						15

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	83,406	2438.4	− 2432	6.4	× 657 / 3901	1.1
4	83,407	2472.9	− 2473	−0.1	× 655 / 3901	0
5	83,408	2524.6	− 2502	22.6	× 690 / 3901	4
6	83,409	2531.0	− 2531	0	× 625 / 3901	0
7	83,410	2559.2	− 2552	7.2	× 652 / 3901	1.2
8	83,411	2567.8	− 2567	0.8	× 622 / 3901	0.1
Sum, rounded to a whole point						6

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	83,361	2436.4	− 2432	4.4	× 664 / 3832	0.8
4	83,362	2481.1	− 2473	8.1	× 642 / 3832	1.4
5	83,363	2515.9	− 2502	13.9	× 655 / 3832	2.4
6	83,364	2525.7	− 2531	−5.3	× 626 / 3832	−0.9
7	83,365	2555.1	− 2552	3.1	× 605 / 3832	0.5
8	83,366	2565.4	− 2567	−1.6	× 640 / 3832	−0.3
Sum, rounded to a whole point						4

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	83,372	2434.4	− 2432	2.4	× 667 / 3777	0.4
4	83,373	2468.3	− 2473	−4.7	× 659 / 3777	−0.8
5	83,374	2516.7	− 2502	14.7	× 631 / 3777	2.5
6	83,375	2521.2	− 2531	−9.8	× 601 / 3777	−1.6
7	83,376	2553.2	− 2552	1.2	× 611 / 3777	0.2
8	83,377	2565.9	− 2567	−1.1	× 608 / 3777	−0.2
Sum, rounded to a whole point						1

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	83,052	2423.4	− 2432	−8.6	× 615 / 3714	−1.4
4	83,053	2470.3	− 2473	−2.7	× 652 / 3714	−0.5
5	83,054	2509.5	− 2502	7.5	× 659 / 3714	1.3
6	83,055	2535.4	− 2531	4.4	× 574 / 3714	0.7
7	83,056	2542.7	− 2552	−9.3	× 601 / 3714	−1.5
8	83,057	2561.6	− 2567	−5.4	× 613 / 3714	−0.9
Sum, rounded to a whole point						−2

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,861	2416.4	− 2432	−15.6	× 635 / 3636	−2.7
4	82,862	2469.6	− 2473	−3.4	× 615 / 3636	−0.6
5	82,863	2517.9	− 2502	15.9	× 639 / 3636	2.8
6	82,864	2521.1	− 2531	−9.9	× 601 / 3636	−1.6
7	82,865	2564.8	− 2552	12.8	× 559 / 3636	2
8	82,866	2556.9	− 2567	−10.1	× 587 / 3636	−1.6
Sum, rounded to a whole point						−2

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −8, −1, 2, 9, 15, 6, 4, 1, −2, −2 → 2.4
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 7 · 2016→2017: 3 · 2017→2018: 7 · 2018→2019: 6 · 2019→2022: 9 · 2022→2023: 2 · 2023→2024: 3 · 2024→2025: 3 · 2025→2026: 0 → average 4.4
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 4.4 × 2.66 = 11.7. Upper limit 14.1, lower limit −9.3.

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.

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