Douglas City 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	99,787	2444.4	− 2432	12.4	× 24 / 125	2.4
4	99,788	2470.4	− 2473	−2.6	× 23 / 125	−0.5
5	99,791	2526.8	− 2502	24.8	× 21 / 125	4.2
6	99,792	2547.4	− 2531	16.4	× 25 / 125	3.3
7	99,795	2588.3	− 2552	36.3	× 19 / 125	5.5
8	99,796	2569.8	− 2567	2.8	× 13 / 125	0.3
Sum, rounded to a whole point						15

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	92,529	2470.4	− 2432	38.4	× 23 / 130	6.8
4	92,530	2512.7	− 2473	39.7	× 22 / 130	6.7
5	92,533	2531.7	− 2502	29.7	× 23 / 130	5.3
6	92,535	2551.9	− 2531	20.9	× 20 / 130	3.2
7	92,536	2589.1	− 2552	37.1	× 24 / 130	6.8
8	92,538	2622.9	− 2567	55.9	× 18 / 130	7.7
Sum, rounded to a whole point						37

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	95,302	2479.5	− 2432	47.5	× 18 / 131	6.5
4	95,304	2453.3	− 2473	−19.7	× 21 / 131	−3.2
5	95,306	2523.8	− 2502	21.8	× 23 / 131	3.8
6	95,309	2547.2	− 2531	16.2	× 26 / 131	3.2
7	95,311	2555.1	− 2552	3.1	× 21 / 131	0.5
8	95,313	2615.1	− 2567	48.1	× 22 / 131	8.1
Sum, rounded to a whole point						19

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	95,459	2479.1	− 2432	47.1	× 14 / 115	5.7
4	95,460	2512.2	− 2473	39.2	× 20 / 115	6.8
5	95,463	2484.1	− 2502	−17.9	× 15 / 115	−2.3
6	95,464	2573.7	− 2531	42.7	× 22 / 115	8.2
7	95,467	2583.9	− 2552	31.9	× 25 / 115	6.9
8	95,468	2615.5	− 2567	48.5	× 19 / 115	8
Sum, rounded to a whole point						33

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	96,135	2457.3	− 2432	25.3	× 27 / 120	5.7
4	96,136	2519.9	− 2473	46.9	× 15 / 120	5.9
5	96,137	2552.9	− 2502	50.9	× 19 / 120	8.1
6	96,138	2553.6	− 2531	22.6	× 14 / 120	2.6
7	96,139	2616.1	− 2552	64.1	× 22 / 120	11.8
8	96,140	2601.3	− 2567	34.3	× 23 / 120	6.6
Sum, rounded to a whole point						41

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	94,036	2464.7	− 2432	32.7	× 18 / 108	5.5
4	94,037	2476.6	− 2473	3.6	× 19 / 108	0.6
5	94,038	2545.5	− 2502	43.5	× 25 / 108	10.1
6	94,039	2582.6	− 2531	51.6	× 16 / 108	7.6
7	94,040	2617.3	− 2552	65.3	× 16 / 108	9.7
8	94,041	2575.7	− 2567	8.7	× 14 / 108	1.1
Sum, rounded to a whole point						35

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	96,303	2448.0	− 2432	16	× 18 / 110	2.6
4	96,304	2477.2	− 2473	4.2	× 18 / 110	0.7
5	96,305	2524.9	− 2502	22.9	× 21 / 110	4.4
6	96,306	2583.7	− 2531	52.7	× 22 / 110	10.5
7	96,307	2605.2	− 2552	53.2	× 16 / 110	7.7
8	96,308	2648.9	− 2567	81.9	× 15 / 110	11.2
Sum, rounded to a whole point						37

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	96,154	2440.7	− 2432	8.7	× 14 / 109	1.1
4	96,155	2470.4	− 2473	−2.6	× 22 / 109	−0.5
5	96,156	2515.0	− 2502	13	× 15 / 109	1.8
6	96,157	2555.7	− 2531	24.7	× 21 / 109	4.8
7	96,158	2603.1	− 2552	51.1	× 21 / 109	9.8
8	96,159	2642.4	− 2567	75.4	× 16 / 109	11.1
Sum, rounded to a whole point						28

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	96,024	2460.9	− 2432	28.9	× 21 / 116	5.2
4	96,025	2495.6	− 2473	22.6	× 16 / 116	3.1
5	96,026	2505.6	− 2502	3.6	× 20 / 116	0.6
6	96,027	2569.9	− 2531	38.9	× 17 / 116	5.7
7	96,028	2549.3	− 2552	−2.7	× 20 / 116	−0.5
8	96,029	2624.7	− 2567	57.7	× 22 / 116	10.9
Sum, rounded to a whole point						25

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	95,768	2472.0	− 2432	40	× 19 / 110	6.9
4	95,769	2476.5	− 2473	3.5	× 24 / 110	0.8
5	95,770	2552.7	− 2502	50.7	× 14 / 110	6.5
6	95,771	2547.7	− 2531	16.7	× 18 / 110	2.7
7	95,772	2572.7	− 2552	20.7	× 16 / 110	3
8	95,773	2617.4	− 2567	50.4	× 19 / 110	8.7
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. 15, 37, 19, 33, 41, 35, 37, 28, 25, 29 → 29.9
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 22 · 2016→2017: 18 · 2017→2018: 14 · 2018→2019: 8 · 2019→2021: 6 · 2021→2022: 2 · 2022→2023: 9 · 2023→2024: 3 · 2024→2025: 4 → average 9.6
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 9.6 × 2.66 = 25.5. Upper limit 55.4, lower limit 4.4.

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.

Schools in Douglas City Elementary

Douglas City Elementary