Brisbane 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	82,552	2422.6	− 2432	−9.4	× 53 / 304	−1.6
4	82,555	2494.7	− 2473	21.7	× 42 / 304	3
5	82,556	2501.0	− 2502	−1	× 54 / 304	−0.2
6	82,559	2537.2	− 2531	6.2	× 54 / 304	1.1
7	82,560	2572.2	− 2552	20.2	× 45 / 304	3
8	82,563	2589.8	− 2567	22.8	× 56 / 304	4.2
Sum, rounded to a whole point						9

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	76,553	2461.0	− 2432	29	× 41 / 291	4.1
4	76,555	2474.6	− 2473	1.6	× 55 / 291	0.3
5	76,556	2524.5	− 2502	22.5	× 45 / 291	3.5
6	76,558	2546.0	− 2531	15	× 49 / 291	2.5
7	76,561	2586.9	− 2552	34.9	× 57 / 291	6.8
8	76,563	2629.7	− 2567	62.7	× 44 / 291	9.5
Sum, rounded to a whole point						27

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	78,606	2425.2	− 2432	−6.8	× 37 / 294	−0.9
4	78,607	2503.2	− 2473	30.2	× 46 / 294	4.7
5	78,609	2504.7	− 2502	2.7	× 55 / 294	0.5
6	78,611	2552.0	− 2531	21	× 48 / 294	3.4
7	78,614	2600.9	− 2552	48.9	× 53 / 294	8.8
8	78,615	2620.1	− 2567	53.1	× 55 / 294	9.9
Sum, rounded to a whole point						27

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	78,752	2462.9	− 2432	30.9	× 37 / 266	4.3
4	78,755	2471.9	− 2473	−1.1	× 38 / 266	−0.2
5	78,756	2545.7	− 2502	43.7	× 43 / 266	7.1
6	78,758	2528.6	− 2531	−2.4	× 50 / 266	−0.5
7	78,761	2611.2	− 2552	59.2	× 46 / 266	10.2
8	78,762	2621.2	− 2567	54.2	× 52 / 266	10.6
Sum, rounded to a whole point						32

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,278	2448.0	− 2432	16	× 58 / 271	3.4
4	79,279	2487.5	− 2473	14.5	× 41 / 271	2.2
5	79,280	2519.0	− 2502	17	× 37 / 271	2.3
6	79,281	2573.8	− 2531	42.8	× 45 / 271	7.1
7	79,282	2581.2	− 2552	29.2	× 46 / 271	5
8	79,283	2628.5	− 2567	61.5	× 44 / 271	10
Sum, rounded to a whole point						30

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,837	2435.4	− 2432	3.4	× 59 / 266	0.8
4	77,838	2462.2	− 2473	−10.8	× 49 / 266	−2
5	77,839	2508.4	− 2502	6.4	× 48 / 266	1.2
6	77,840	2548.0	− 2531	17	× 35 / 266	2.2
7	77,841	2590.1	− 2552	38.1	× 36 / 266	5.2
8	77,842	2630.5	− 2567	63.5	× 39 / 266	9.3
Sum, rounded to a whole point						17

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,522	2464.7	− 2432	32.7	× 49 / 285	5.6
4	79,523	2499.1	− 2473	26.1	× 65 / 285	6
5	79,524	2503.1	− 2502	1.1	× 49 / 285	0.2
6	79,525	2560.4	− 2531	29.4	× 48 / 285	5
7	79,526	2603.7	− 2552	51.7	× 35 / 285	6.3
8	79,527	2601.1	− 2567	34.1	× 39 / 285	4.7
Sum, rounded to a whole point						28

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,494	2479.3	− 2432	47.3	× 54 / 301	8.5
4	79,495	2505.9	− 2473	32.9	× 50 / 301	5.5
5	79,496	2506.6	− 2502	4.6	× 63 / 301	1
6	79,497	2538.5	− 2531	7.5	× 53 / 301	1.3
7	79,498	2612.0	− 2552	60	× 43 / 301	8.6
8	79,499	2592.7	− 2567	25.7	× 38 / 301	3.2
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	79,524	2461.1	− 2432	29.1	× 44 / 298	4.3
4	79,525	2520.6	− 2473	47.6	× 51 / 298	8.1
5	79,526	2526.4	− 2502	24.4	× 49 / 298	4
6	79,527	2522.6	− 2531	−8.4	× 60 / 298	−1.7
7	79,528	2593.3	− 2552	41.3	× 51 / 298	7.1
8	79,529	2596.6	− 2567	29.6	× 43 / 298	4.3
Sum, rounded to a whole point						26

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,190	2444.3	− 2432	12.3	× 46 / 303	1.9
4	79,191	2471.6	− 2473	−1.4	× 46 / 303	−0.2
5	79,192	2552.4	− 2502	50.4	× 51 / 303	8.5
6	79,193	2531.1	− 2531	0.1	× 49 / 303	0
7	79,194	2599.6	− 2552	47.6	× 59 / 303	9.3
8	79,195	2587.9	− 2567	20.9	× 52 / 303	3.6
Sum, rounded to a whole point						23

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. 9, 27, 27, 32, 30, 17, 28, 28, 26, 23 → 24.7
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 18 · 2016→2017: 0 · 2017→2018: 5 · 2018→2019: 2 · 2019→2021: 13 · 2021→2022: 11 · 2022→2023: 0 · 2023→2024: 2 · 2024→2025: 3 → average 6
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 6 × 2.66 = 16. Upper limit 40.7, lower limit 8.7.

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.