Escalon Charter 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
3	78,801	2425.6	− 2432	−6.4	× 21 / 45	−3
5	78,805	2419.1	− 2502	−82.9	× 12 / 45	−22.1
6	78,806	2513.5	− 2531	−17.5	× 12 / 45	−4.7
Sum, rounded to a whole point						−30

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	72,991	2385.8	− 2432	−46.2	× 27 / 82	−15.2
4	72,992	2442.6	− 2473	−30.4	× 26 / 82	−9.6
5	72,994	2535.8	− 2502	33.8	× 14 / 82	5.8
6	72,996	2474.1	− 2531	−56.9	× 15 / 82	−10.4
Sum, rounded to a whole point						−29

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	74,957	2402.7	− 2432	−29.3	× 27 / 114	−6.9
4	74,959	2411.8	− 2473	−61.2	× 29 / 114	−15.6
5	74,961	2498.3	− 2502	−3.7	× 27 / 114	−0.9
6	74,963	2541.2	− 2531	10.2	× 13 / 114	1.2
7	74,966	2529.2	− 2552	−22.8	× 18 / 114	−3.6
Sum, rounded to a whole point						−26

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	75,140	2409.8	− 2432	−22.2	× 20 / 131	−3.4
4	75,143	2434.6	− 2473	−38.4	× 33 / 131	−9.7
5	75,144	2471.0	− 2502	−31	× 27 / 131	−6.4
6	75,147	2513.7	− 2531	−17.3	× 23 / 131	−3
7	75,148	2562.9	− 2552	10.9	× 14 / 131	1.2
8	75,151	2523.7	− 2567	−43.3	× 14 / 131	−4.6
Sum, rounded to a whole point						−26

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	75,668	2424.7	− 2432	−7.3	× 35 / 150	−1.7
4	75,669	2466.0	− 2473	−7	× 21 / 150	−1
5	75,670	2499.9	− 2502	−2.1	× 26 / 150	−0.4
6	75,671	2525.4	− 2531	−5.6	× 25 / 150	−0.9
7	75,672	2536.5	− 2552	−15.5	× 29 / 150	−3
8	75,673	2553.1	− 2567	−13.9	× 14 / 150	−1.3
Sum, rounded to a whole point						−8

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	74,223	2430.0	− 2432	−2	× 37 / 123	−0.6
4	74,224	2466.3	− 2473	−6.7	× 17 / 123	−0.9
5	74,225	2528.1	− 2502	26.1	× 28 / 123	5.9
6	74,226	2533.2	− 2531	2.2	× 11 / 123	0.2
7	74,227	2552.0	− 2552	0	× 16 / 123	0
8	74,228	2590.3	− 2567	23.3	× 14 / 123	2.7
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
3	75,808	2438.3	− 2432	6.3	× 26 / 131	1.3
4	75,809	2461.5	− 2473	−11.5	× 38 / 131	−3.3
5	75,810	2537.5	− 2502	35.5	× 19 / 131	5.1
6	75,811	2561.7	− 2531	30.7	× 23 / 131	5.4
7	75,812	2527.6	− 2552	−24.4	× 12 / 131	−2.2
8	75,813	2564.2	− 2567	−2.8	× 13 / 131	−0.3
Sum, rounded to a whole point						6

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	75,788	2413.7	− 2432	−18.3	× 32 / 132	−4.4
4	75,789	2448.5	− 2473	−24.5	× 26 / 132	−4.8
5	75,790	2505.8	− 2502	3.8	× 30 / 132	0.9
6	75,791	2556.0	− 2531	25	× 16 / 132	3
7	75,792	2637.3	− 2552	85.3	× 15 / 132	9.7
8	75,793	2541.8	− 2567	−25.2	× 13 / 132	−2.5
Sum, rounded to a whole point						2

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	75,783	2436.1	− 2432	4.1	× 15 / 127	0.5
4	75,784	2450.8	− 2473	−22.2	× 33 / 127	−5.8
5	75,785	2521.0	− 2502	19	× 26 / 127	3.9
6	75,786	2548.9	− 2531	17.9	× 29 / 127	4.1
7	75,787	2577.4	− 2552	25.4	× 11 / 127	2.2
8	75,788	2645.0	− 2567	78	× 13 / 127	8
Sum, rounded to a whole point						13

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	75,452	2436.2	− 2432	4.2	× 25 / 134	0.8
4	75,453	2472.5	− 2473	−0.5	× 19 / 134	−0.1
5	75,454	2498.4	− 2502	−3.6	× 35 / 134	−0.9
6	75,455	2537.1	− 2531	6.1	× 28 / 134	1.3
7	75,456	2591.1	− 2552	39.1	× 27 / 134	7.9
Sum, rounded to a whole point						9

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −30, −29, −26, −26, −8, 7, 6, 2, 13, 9 → −8.2
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 1 · 2016→2017: 3 · 2017→2018: 0 · 2018→2019: 18 · 2019→2021: 15 · 2021→2022: 1 · 2022→2023: 4 · 2023→2024: 11 · 2024→2025: 4 → average 6.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 6.3 × 2.66 = 16.8. Upper limit 8.6, lower limit −25.

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.