Escuela Popular Accelerated Family Learning: 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	86,872	2350.2	− 2436	−85.8	× 30 / 149	−17.3
4	86,873	2394.1	− 2485	−90.9	× 34 / 149	−20.7
5	86,876	2395.1	− 2528	−132.9	× 25 / 149	−22.3
6	86,877	2432.5	− 2552	−119.5	× 23 / 149	−18.4
7	86,880	2468.2	− 2567	−98.8	× 14 / 149	−9.3
8	86,881	2492.7	− 2586	−93.3	× 23 / 149	−14.4
Sum, rounded to a whole point						−102

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,628	2386.2	− 2436	−49.8	× 37 / 163	−11.3
4	80,631	2410.3	− 2485	−74.7	× 29 / 163	−13.3
5	80,632	2424.4	− 2528	−103.6	× 33 / 163	−21
6	80,634	2483.3	− 2552	−68.7	× 23 / 163	−9.7
7	80,637	2463.4	− 2567	−103.6	× 25 / 163	−15.9
8	80,639	2439.3	− 2586	−146.7	× 16 / 163	−14.4
Sum, rounded to a whole point						−86

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,844	2363.4	− 2436	−72.6	× 41 / 158	−18.8
4	82,845	2387.0	− 2485	−98	× 25 / 158	−15.5
5	82,847	2404.6	− 2528	−123.4	× 25 / 158	−19.5
6	82,850	2424.4	− 2552	−127.6	× 23 / 158	−18.6
7	82,852	2418.1	− 2567	−148.9	× 21 / 158	−19.8
8	82,853	2447.7	− 2586	−138.3	× 23 / 158	−20.1
Sum, rounded to a whole point						−112

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	83,060	2345.5	− 2436	−90.5	× 33 / 150	−19.9
4	83,062	2385.3	− 2485	−99.7	× 34 / 150	−22.6
5	83,064	2446.1	− 2528	−81.9	× 25 / 150	−13.7
6	83,066	2392.8	− 2552	−159.2	× 19 / 150	−20.2
7	83,068	2438.7	− 2567	−128.3	× 22 / 150	−18.8
8	83,070	2451.9	− 2586	−134.1	× 17 / 150	−15.2
Sum, rounded to a whole point						−110

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	83,677	2360.6	− 2436	−75.4	× 40 / 167	−18.1
4	83,678	2374.1	− 2485	−110.9	× 31 / 167	−20.6
5	83,679	2409.0	− 2528	−119	× 30 / 167	−21.4
6	83,680	2428.7	− 2552	−123.3	× 26 / 167	−19.2
7	83,681	2397.7	− 2567	−169.3	× 21 / 167	−21.3
8	83,682	2420.0	− 2586	−166	× 19 / 167	−18.9
Sum, rounded to a whole point						−119

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	83,874	2352.3	− 2436	−83.7	× 35 / 203	−14.4
4	83,875	2365.4	− 2485	−119.6	× 44 / 203	−25.9
5	83,876	2407.5	− 2528	−120.5	× 31 / 203	−18.4
6	83,877	2415.5	− 2552	−136.5	× 32 / 203	−21.5
7	83,878	2410.3	− 2567	−156.7	× 30 / 203	−23.2
8	83,879	2409.0	− 2586	−177	× 31 / 203	−27
Sum, rounded to a whole point						−130

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	83,813	2353.5	− 2436	−82.5	× 26 / 207	−10.4
4	83,814	2398.9	− 2485	−86.1	× 41 / 207	−17.1
5	83,815	2427.1	− 2528	−100.9	× 48 / 207	−23.4
6	83,816	2412.8	− 2552	−139.2	× 28 / 207	−18.8
7	83,817	2420.8	− 2567	−146.2	× 32 / 207	−22.6
8	83,818	2443.1	− 2586	−142.9	× 32 / 207	−22.1
Sum, rounded to a whole point						−114

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	83,819	2311.7	− 2436	−124.3	× 28 / 217	−16
4	83,820	2363.5	− 2485	−121.5	× 31 / 217	−17.4
5	83,821	2401.5	− 2528	−126.5	× 39 / 217	−22.7
6	83,822	2444.6	− 2552	−107.4	× 52 / 217	−25.7
7	83,823	2454.0	− 2567	−113	× 32 / 217	−16.7
8	83,824	2464.7	− 2586	−121.3	× 35 / 217	−19.6
Sum, rounded to a whole point						−118

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	83,496	2340.1	− 2436	−95.9	× 31 / 198	−15
4	83,497	2338.9	− 2485	−146.1	× 29 / 198	−21.4
5	83,498	2392.8	− 2528	−135.2	× 30 / 198	−20.5
6	83,499	2449.1	− 2552	−102.9	× 36 / 198	−18.7
7	83,500	2465.2	− 2567	−101.8	× 42 / 198	−21.6
8	83,501	2461.5	− 2586	−124.5	× 30 / 198	−18.9
Sum, rounded to a whole point						−116

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −102, −86, −112, −110, −119, −130, −114, −118, −116 → −111.9
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 16 · 2016→2017: 26 · 2017→2018: 2 · 2018→2019: 9 · 2019→2022: 11 · 2022→2023: 16 · 2023→2024: 4 · 2024→2025: 2 → average 10.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 10.8 × 2.66 = 28.7. Upper limit −83.2, lower limit −140.6.

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.