Alview-Dairyland 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	41,086	2414.1	− 2432	−17.9	× 44 / 229	−3.4
4	41,087	2446.5	− 2473	−26.5	× 40 / 229	−4.6
5	41,090	2490.5	− 2502	−11.5	× 31 / 229	−1.6
6	41,091	2527.1	− 2531	−3.9	× 34 / 229	−0.6
7	41,094	2536.0	− 2552	−16	× 43 / 229	−3
8	41,095	2563.9	− 2567	−3.1	× 37 / 229	−0.5
Sum, rounded to a whole point						−14

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	37,988	2413.3	− 2432	−18.7	× 49 / 253	−3.6
4	37,990	2473.6	− 2473	0.6	× 45 / 253	0.1
5	37,992	2497.9	− 2502	−4.1	× 45 / 253	−0.7
6	37,994	2494.3	− 2531	−36.7	× 36 / 253	−5.2
7	37,997	2566.5	− 2552	14.5	× 34 / 253	1.9
8	37,999	2564.4	− 2567	−2.6	× 44 / 253	−0.5
Sum, rounded to a whole point						−8

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,890	2433.9	− 2432	1.9	× 36 / 233	0.3
4	38,893	2465.0	− 2473	−8	× 49 / 233	−1.7
5	38,894	2509.3	− 2502	7.3	× 43 / 233	1.3
6	38,897	2532.0	− 2531	1	× 41 / 233	0.2
7	38,899	2556.5	− 2552	4.5	× 30 / 233	0.6
8	38,901	2568.9	− 2567	1.9	× 34 / 233	0.3
Sum, rounded to a whole point						1

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,912	2429.4	− 2432	−2.6	× 41 / 242	−0.4
4	38,913	2472.1	− 2473	−0.9	× 33 / 242	−0.1
5	38,915	2504.6	− 2502	2.6	× 50 / 242	0.5
6	38,918	2526.9	− 2531	−4.1	× 45 / 242	−0.8
7	38,919	2562.4	− 2552	10.4	× 43 / 242	1.8
8	38,922	2573.4	− 2567	6.4	× 30 / 242	0.8
Sum, rounded to a whole point						2

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	39,063	2463.8	− 2432	31.8	× 42 / 256	5.2
4	39,064	2441.0	− 2473	−32	× 44 / 256	−5.5
5	39,065	2492.6	− 2502	−9.4	× 34 / 256	−1.2
6	39,066	2547.6	− 2531	16.6	× 47 / 256	3
7	39,067	2576.6	− 2552	24.6	× 41 / 256	3.9
8	39,068	2579.0	− 2567	12	× 48 / 256	2.3
Sum, rounded to a whole point						8

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,052	2390.1	− 2432	−41.9	× 46 / 251	−7.7
4	38,053	2441.1	− 2473	−31.9	× 46 / 251	−5.8
5	38,054	2529.5	− 2502	27.5	× 40 / 251	4.4
6	38,055	2527.6	− 2531	−3.4	× 44 / 251	−0.6
7	38,056	2547.4	− 2552	−4.6	× 31 / 251	−0.6
8	38,057	2568.6	− 2567	1.6	× 44 / 251	0.3
Sum, rounded to a whole point						−10

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,814	2412.5	− 2432	−19.5	× 33 / 259	−2.5
4	38,815	2456.8	− 2473	−16.2	× 53 / 259	−3.3
5	38,816	2503.8	− 2502	1.8	× 52 / 259	0.4
6	38,817	2560.7	− 2531	29.7	× 44 / 259	5
7	38,818	2550.6	− 2552	−1.4	× 43 / 259	−0.2
8	38,819	2555.5	− 2567	−11.5	× 34 / 259	−1.5
Sum, rounded to a whole point						−2

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,869	2439.8	− 2432	7.8	× 28 / 254	0.9
4	38,870	2445.3	− 2473	−27.7	× 34 / 254	−3.7
5	38,871	2470.9	− 2502	−31.1	× 56 / 254	−6.9
6	38,872	2547.4	− 2531	16.4	× 50 / 254	3.2
7	38,873	2588.0	− 2552	36	× 44 / 254	6.2
8	38,874	2534.0	− 2567	−33	× 42 / 254	−5.5
Sum, rounded to a whole point						−6

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,701	2443.2	− 2432	11.2	× 36 / 248	1.6
4	38,702	2471.7	− 2473	−1.3	× 26 / 248	−0.1
5	38,703	2507.5	− 2502	5.5	× 36 / 248	0.8
6	38,704	2525.6	− 2531	−5.4	× 54 / 248	−1.2
7	38,705	2563.2	− 2552	11.2	× 50 / 248	2.3
8	38,706	2575.9	− 2567	8.9	× 46 / 248	1.7
Sum, rounded to a whole point						5

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,474	2444.3	− 2432	12.3	× 38 / 241	1.9
4	38,475	2485.1	− 2473	12.1	× 36 / 241	1.8
5	38,476	2507.6	− 2502	5.6	× 29 / 241	0.7
6	38,477	2530.4	− 2531	−0.6	× 37 / 241	−0.1
7	38,478	2580.9	− 2552	28.9	× 51 / 241	6.1
8	38,479	2558.8	− 2567	−8.2	× 50 / 241	−1.7
Sum, rounded to a whole point						9

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −14, −8, 1, 2, 8, −10, −2, −6, 5, 9 → −1.5
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 6 · 2016→2017: 9 · 2017→2018: 1 · 2018→2019: 6 · 2019→2021: 18 · 2021→2022: 8 · 2022→2023: 4 · 2023→2024: 11 · 2024→2025: 4 → average 7.4
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 7.4 × 2.66 = 19.7. Upper limit 18.2, lower limit −21.2.

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.