Aveson Global Leadership Academy: english

The shaded band is this school'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
6	36,193	2542.1	− 2531	11.1	× 68 / 239	3.2
7	36,196	2535.8	− 2552	−16.2	× 66 / 239	−4.5
8	36,197	2530.5	− 2567	−36.5	× 81 / 239	−12.4
11	36,200	2562.0	− 2583	−21	× 24 / 239	−2.1
Sum, rounded to a whole point						−16

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	33,778	2534.2	− 2531	3.2	× 57 / 234	0.8
7	33,781	2580.5	− 2552	28.5	× 70 / 234	8.5
8	33,782	2546.6	− 2567	−20.4	× 68 / 234	−5.9
11	33,784	2548.8	− 2583	−34.2	× 39 / 234	−5.7
Sum, rounded to a whole point						−2

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	34,369	2542.8	− 2531	11.8	× 77 / 268	3.4
7	34,370	2565.6	− 2552	13.6	× 68 / 268	3.5
8	34,373	2583.8	− 2567	16.8	× 69 / 268	4.3
11	34,375	2623.9	− 2583	40.9	× 54 / 268	8.2
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
6	34,373	2521.8	− 2531	−9.2	× 65 / 254	−2.4
7	34,376	2572.5	− 2552	20.5	× 74 / 254	6
8	34,377	2560.7	− 2567	−6.3	× 66 / 254	−1.6
11	34,380	2546.4	− 2583	−36.6	× 49 / 254	−7.1
Sum, rounded to a whole point						−5

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	34,535	2529.9	− 2531	−1.1	× 64 / 257	−0.3
7	34,536	2549.3	− 2552	−2.7	× 66 / 257	−0.7
8	34,537	2576.7	− 2567	9.7	× 79 / 257	3
11	34,538	2609.8	− 2583	26.8	× 48 / 257	5
Sum, rounded to a whole point						7

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	34,466	2521.7	− 2531	−9.3	× 30 / 143	−2
7	34,467	2555.1	− 2552	3.1	× 34 / 143	0.7
8	34,468	2542.7	− 2567	−24.3	× 54 / 143	−9.2
11	34,469	2666.8	− 2583	83.8	× 25 / 143	14.7
Sum, rounded to a whole point						4

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	34,525	2510.3	− 2531	−20.7	× 38 / 134	−5.9
7	34,526	2527.0	− 2552	−25	× 29 / 134	−5.4
8	34,527	2567.3	− 2567	0.3	× 37 / 134	0.1
11	34,528	2532.5	− 2583	−50.5	× 30 / 134	−11.3
Sum, rounded to a whole point						−23

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	34,377	2513.9	− 2531	−17.1	× 31 / 124	−4.3
7	34,378	2517.8	− 2552	−34.2	× 38 / 124	−10.5
8	34,379	2475.2	− 2567	−91.8	× 30 / 124	−22.2
11	34,380	2571.7	− 2583	−11.3	× 25 / 124	−2.3
Sum, rounded to a whole point						−39

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	34,224	2557.1	− 2531	26.1	× 28 / 116	6.3
7	34,225	2561.1	− 2552	9.1	× 29 / 116	2.3
8	34,226	2526.1	− 2567	−40.9	× 39 / 116	−13.8
11	34,227	2526.1	− 2583	−56.9	× 20 / 116	−9.8
Sum, rounded to a whole point						−15

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −16, −2, 19, −5, 7, 4, −23, −39, −15 → −7.8
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 14 · 2016→2017: 21 · 2017→2018: 24 · 2018→2019: 12 · 2019→2022: 3 · 2022→2023: 27 · 2023→2024: 16 · 2024→2025: 24 → average 17.6
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 17.6 × 2.66 = 46.8. Upper limit 39, lower limit −54.6.

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. From 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.