Epic Charter (Excellence Performance Innovation Ci: 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.

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
11	45,517	2579.9	− 2583	−3.1	× 14 / 14	−3.1
Sum, rounded to a whole point						−3

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,521	2355.0	− 2432	−77	× 28 / 163	−13.2
4	45,523	2447.4	− 2473	−25.6	× 22 / 163	−3.5
5	45,525	2436.0	− 2502	−66	× 22 / 163	−8.9
6	45,527	2464.5	− 2531	−66.5	× 27 / 163	−11
7	45,529	2501.6	− 2552	−50.4	× 27 / 163	−8.3
8	45,531	2535.8	− 2567	−31.2	× 25 / 163	−4.8
11	45,533	2579.8	− 2583	−3.2	× 12 / 163	−0.2
Sum, rounded to a whole point						−50

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,670	2389.8	− 2432	−42.2	× 55 / 337	−6.9
4	45,671	2425.5	− 2473	−47.5	× 45 / 337	−6.3
5	45,672	2490.1	− 2502	−11.9	× 41 / 337	−1.4
6	45,673	2486.8	− 2531	−44.2	× 51 / 337	−6.7
7	45,674	2506.5	− 2552	−45.5	× 56 / 337	−7.6
8	45,675	2522.1	− 2567	−44.9	× 44 / 337	−5.9
11	45,676	2567.1	− 2583	−15.9	× 45 / 337	−2.1
Sum, rounded to a whole point						−37

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,358	2423.2	− 2432	−8.8	× 66 / 680	−0.9
4	45,359	2443.7	− 2473	−29.3	× 69 / 680	−3
5	45,360	2475.8	− 2502	−26.2	× 73 / 680	−2.8
6	45,361	2490.3	− 2531	−40.7	× 102 / 680	−6.1
7	45,362	2527.1	− 2552	−24.9	× 150 / 680	−5.5
8	45,363	2543.8	− 2567	−23.2	× 181 / 680	−6.2
11	45,364	2561.4	− 2583	−21.6	× 39 / 680	−1.2
Sum, rounded to a whole point						−26

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,320	2411.9	− 2432	−20.1	× 46 / 640	−1.4
4	45,321	2443.1	− 2473	−29.9	× 54 / 640	−2.5
5	45,322	2473.4	− 2502	−28.6	× 63 / 640	−2.8
6	45,323	2510.9	− 2531	−20.1	× 72 / 640	−2.3
7	45,324	2523.0	− 2552	−29	× 109 / 640	−4.9
8	45,325	2529.4	− 2567	−37.6	× 254 / 640	−14.9
11	45,326	2544.8	− 2583	−38.2	× 42 / 640	−2.5
Sum, rounded to a whole point						−31

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,159	2391.7	− 2432	−40.3	× 41 / 719	−2.3
4	45,160	2466.5	− 2473	−6.5	× 45 / 719	−0.4
5	45,161	2471.4	− 2502	−30.6	× 52 / 719	−2.2
6	45,162	2497.9	− 2531	−33.1	× 88 / 719	−4.1
7	45,163	2515.9	− 2552	−36.1	× 134 / 719	−6.7
8	45,164	2527.8	− 2567	−39.2	× 310 / 719	−16.9
11	45,165	2577.1	− 2583	−5.9	× 49 / 719	−0.4
Sum, rounded to a whole point						−33

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	44,901	2428.4	− 2432	−3.6	× 46 / 697	−0.2
4	44,902	2453.6	− 2473	−19.4	× 38 / 697	−1.1
5	44,903	2492.4	− 2502	−9.6	× 63 / 697	−0.9
6	44,904	2505.4	− 2531	−25.6	× 74 / 697	−2.7
7	44,905	2553.7	− 2552	1.7	× 133 / 697	0.3
8	44,906	2551.7	− 2567	−15.3	× 314 / 697	−6.9
11	44,907	2615.3	− 2583	32.3	× 29 / 697	1.3
Sum, rounded to a whole point						−10

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −3, −50, −37, −26, −31, −33, −10 → −27.1
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2017→2018: 47 · 2018→2019: 13 · 2019→2022: 11 · 2022→2023: 5 · 2023→2024: 2 · 2024→2025: 23 → average 16.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 16.8 × 2.66 = 44.7. Upper limit 17.6, lower limit −71.8.

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