Dunham 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	94,122	2408.6	− 2432	−23.4	× 28 / 105	−6.2
4	94,124	2431.8	− 2473	−41.2	× 23 / 105	−9
5	94,127	2513.2	− 2502	11.2	× 28 / 105	3
6	94,128	2540.9	− 2531	9.9	× 26 / 105	2.5
Sum, rounded to a whole point						−10

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	87,377	2489.8	− 2432	57.8	× 24 / 84	16.5
4	87,380	2451.5	− 2473	−21.5	× 26 / 84	−6.7
5	87,382	2514.0	− 2502	12	× 19 / 84	2.7
6	87,383	2576.4	− 2531	45.4	× 15 / 84	8.1
Sum, rounded to a whole point						21

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	89,867	2436.2	− 2432	4.2	× 30 / 92	1.4
4	89,868	2518.2	− 2473	45.2	× 24 / 92	11.8
5	89,870	2512.6	− 2502	10.6	× 26 / 92	3
6	89,873	2563.8	− 2531	32.8	× 12 / 92	4.3
Sum, rounded to a whole point						20

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,084	2465.6	− 2432	33.6	× 27 / 95	9.5
4	90,085	2480.2	− 2473	7.2	× 26 / 95	2
5	90,088	2589.7	− 2502	87.7	× 21 / 95	19.4
6	90,089	2558.6	− 2531	27.6	× 21 / 95	6.1
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	90,689	2473.8	− 2432	41.8	× 23 / 81	11.9
4	90,690	2505.3	− 2473	32.3	× 25 / 81	10
5	90,691	2530.0	− 2502	28	× 22 / 81	7.6
6	90,692	2620.9	− 2531	89.9	× 11 / 81	12.2
Sum, rounded to a whole point						42

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,919	2442.5	− 2432	10.5	× 22 / 71	3.3
4	90,920	2469.2	− 2473	−3.8	× 14 / 71	−0.7
5	90,921	2520.5	− 2502	18.5	× 21 / 71	5.5
6	90,922	2596.9	− 2531	65.9	× 14 / 71	13
Sum, rounded to a whole point						21

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,813	2454.6	− 2432	22.6	× 19 / 69	6.2
4	90,814	2504.2	− 2473	31.2	× 26 / 69	11.8
5	90,815	2472.8	− 2502	−29.2	× 12 / 69	−5.1
6	90,816	2518.6	− 2531	−12.4	× 12 / 69	−2.2
Sum, rounded to a whole point						11

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,762	2434.5	− 2432	2.5	× 27 / 68	1
4	90,763	2496.6	− 2473	23.6	× 16 / 68	5.6
5	90,764	2519.8	− 2502	17.8	× 25 / 68	6.5
Sum, rounded to a whole point						13

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,452	2436.5	− 2432	4.5	× 23 / 88	1.2
4	90,453	2524.2	− 2473	51.2	× 24 / 88	14
5	90,454	2562.8	− 2502	60.8	× 18 / 88	12.4
6	90,455	2560.5	− 2531	29.5	× 23 / 88	7.7
Sum, rounded to a whole point						35

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,113	2438.5	− 2432	6.5	× 26 / 79	2.1
4	90,114	2496.1	− 2473	23.1	× 21 / 79	6.1
5	90,115	2552.5	− 2502	50.5	× 21 / 79	13.4
6	90,116	2548.5	− 2531	17.5	× 11 / 79	2.4
Sum, rounded to a whole point						24

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −10, 21, 20, 37, 42, 21, 11, 13, 35, 24 → 21.4
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 31 · 2016→2017: 1 · 2017→2018: 17 · 2018→2019: 5 · 2019→2022: 21 · 2022→2023: 10 · 2023→2024: 2 · 2024→2025: 22 · 2025→2026: 11 → average 13.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 13.3 × 2.66 = 35.4. Upper limit 56.8, lower limit −14.

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.

Dunham Elementary