Edgewood Academy: math

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
3	21,328	2391.0	− 2436	−45	× 69 / 425	−7.3
4	21,331	2447.7	− 2485	−37.3	× 67 / 425	−5.9
5	21,332	2463.6	− 2528	−64.4	× 63 / 425	−9.5
6	21,335	2539.3	− 2552	−12.7	× 71 / 425	−2.1
7	21,336	2538.4	− 2567	−28.6	× 90 / 425	−6.1
8	21,339	2486.8	− 2586	−99.2	× 65 / 425	−15.2
Sum, rounded to a whole point						−46

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	20,216	2441.7	− 2436	5.7	× 56 / 404	0.8
4	20,218	2437.9	− 2485	−47.1	× 62 / 404	−7.2
5	20,221	2487.1	− 2528	−40.9	× 64 / 404	−6.5
6	20,223	2520.3	− 2552	−31.7	× 70 / 404	−5.5
7	20,225	2550.0	− 2567	−17	× 67 / 404	−2.8
8	20,227	2539.7	− 2586	−46.3	× 85 / 404	−9.7
Sum, rounded to a whole point						−31

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	20,535	2446.4	− 2436	10.4	× 64 / 395	1.7
4	20,536	2478.2	− 2485	−6.8	× 59 / 395	−1
5	20,539	2471.3	− 2528	−56.7	× 63 / 395	−9
6	20,541	2543.8	− 2552	−8.2	× 71 / 395	−1.5
7	20,543	2525.3	− 2567	−41.7	× 69 / 395	−7.3
8	20,544	2517.0	− 2586	−69	× 69 / 395	−12.1
Sum, rounded to a whole point						−29

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	20,524	2445.1	− 2436	9.1	× 69 / 389	1.6
4	20,526	2485.9	− 2485	0.9	× 67 / 389	0.2
5	20,528	2493.1	− 2528	−34.9	× 54 / 389	−4.8
6	20,530	2553.4	− 2552	1.4	× 65 / 389	0.2
7	20,532	2552.2	− 2567	−14.8	× 68 / 389	−2.6
8	20,534	2535.2	− 2586	−50.8	× 66 / 389	−8.6
Sum, rounded to a whole point						−14

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	20,704	2445.3	− 2436	9.3	× 52 / 398	1.2
4	20,705	2501.6	− 2485	16.6	× 70 / 398	2.9
5	20,706	2503.9	− 2528	−24.1	× 66 / 398	−4
6	20,707	2562.0	− 2552	10	× 66 / 398	1.7
7	20,708	2524.1	− 2567	−42.9	× 71 / 398	−7.7
8	20,709	2537.2	− 2586	−48.8	× 73 / 398	−9
Sum, rounded to a whole point						−15

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	20,719	2437.8	− 2436	1.8	× 48 / 363	0.2
4	20,720	2457.5	− 2485	−27.5	× 57 / 363	−4.3
5	20,721	2495.9	− 2528	−32.1	× 55 / 363	−4.9
6	20,722	2545.0	− 2552	−7	× 59 / 363	−1.1
7	20,723	2497.2	− 2567	−69.8	× 71 / 363	−13.7
8	20,724	2509.1	− 2586	−76.9	× 73 / 363	−15.5
Sum, rounded to a whole point						−39

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	20,680	2450.7	− 2436	14.7	× 38 / 331	1.7
4	20,681	2479.1	− 2485	−5.9	× 47 / 331	−0.8
5	20,682	2427.9	− 2528	−100.1	× 62 / 331	−18.7
6	20,683	2597.8	− 2552	45.8	× 53 / 331	7.3
7	20,684	2503.8	− 2567	−63.2	× 61 / 331	−11.6
8	20,685	2486.1	− 2586	−99.9	× 70 / 331	−21.1
Sum, rounded to a whole point						−43

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	20,556	2437.4	− 2436	1.4	× 40 / 307	0.2
4	20,557	2478.5	− 2485	−6.5	× 46 / 307	−1
5	20,558	2493.6	− 2528	−34.4	× 48 / 307	−5.4
6	20,559	2525.7	− 2552	−26.3	× 64 / 307	−5.5
7	20,560	2560.6	− 2567	−6.4	× 51 / 307	−1.1
8	20,561	2516.3	− 2586	−69.7	× 58 / 307	−13.2
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	20,471	2445.4	− 2436	9.4	× 50 / 320	1.5
4	20,472	2472.9	− 2485	−12.1	× 44 / 320	−1.7
5	20,473	2481.2	− 2528	−46.8	× 46 / 320	−6.7
6	20,474	2555.4	− 2552	3.4	× 61 / 320	0.6
7	20,475	2516.6	− 2567	−50.4	× 63 / 320	−9.9
8	20,476	2532.4	− 2586	−53.6	× 56 / 320	−9.4
Sum, rounded to a whole point						−26

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −46, −31, −29, −14, −15, −39, −43, −26, −26 → −29.9
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 15 · 2016→2017: 2 · 2017→2018: 15 · 2018→2019: 1 · 2019→2022: 24 · 2022→2023: 4 · 2023→2024: 17 · 2024→2025: 0 → average 9.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 9.8 × 2.66 = 26.1. Upper limit −3.8, lower limit −56.

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.