San Juan Choices Charter: 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
7	62,230	2530.8	− 2552	−21.2	× 23 / 100	−4.9
8	62,233	2540.5	− 2567	−26.5	× 18 / 100	−4.8
11	62,234	2609.0	− 2583	26	× 59 / 100	15.3
Sum, rounded to a whole point						6

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
7	57,725	2506.3	− 2552	−45.7	× 27 / 117	−10.5
8	57,727	2534.9	− 2567	−32.1	× 28 / 117	−7.7
11	57,729	2585.6	− 2583	2.6	× 62 / 117	1.4
Sum, rounded to a whole point						−17

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	59,419	2471.6	− 2531	−59.4	× 25 / 140	−10.6
7	59,420	2535.1	− 2552	−16.9	× 21 / 140	−2.5
8	59,423	2525.5	− 2567	−41.5	× 35 / 140	−10.4
11	59,425	2568.9	− 2583	−14.1	× 59 / 140	−5.9
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
6	59,536	2480.1	− 2531	−50.9	× 24 / 155	−7.9
7	59,537	2533.3	− 2552	−18.7	× 31 / 155	−3.7
8	59,540	2581.4	− 2567	14.4	× 34 / 155	3.2
11	59,541	2601.2	− 2583	18.2	× 66 / 155	7.7
Sum, rounded to a whole point						−1

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	59,788	2515.8	− 2531	−15.2	× 18 / 160	−1.7
7	59,789	2559.8	− 2552	7.8	× 33 / 160	1.6
8	59,790	2551.7	− 2567	−15.3	× 40 / 160	−3.8
11	59,791	2545.7	− 2583	−37.3	× 69 / 160	−16.1
Sum, rounded to a whole point						−20

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	58,395	2513.9	− 2531	−17.1	× 19 / 114	−2.9
7	58,396	2559.2	− 2552	7.2	× 29 / 114	1.8
8	58,397	2578.8	− 2567	11.8	× 26 / 114	2.7
11	58,398	2644.4	− 2583	61.4	× 40 / 114	21.5
Sum, rounded to a whole point						23

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	59,862	2525.4	− 2531	−5.6	× 15 / 123	−0.7
7	59,863	2541.9	− 2552	−10.1	× 30 / 123	−2.5
8	59,864	2543.8	− 2567	−23.2	× 29 / 123	−5.5
11	59,865	2590.7	− 2583	7.7	× 49 / 123	3.1
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
6	59,817	2528.9	− 2531	−2.1	× 15 / 119	−0.3
7	59,818	2515.2	− 2552	−36.8	× 32 / 119	−9.9
8	59,819	2538.1	− 2567	−28.9	× 23 / 119	−5.6
11	59,820	2557.6	− 2583	−25.4	× 49 / 119	−10.5
Sum, rounded to a whole point						−26

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	59,742	2485.2	− 2531	−45.8	× 17 / 133	−5.9
7	59,743	2513.2	− 2552	−38.8	× 28 / 133	−8.2
8	59,744	2526.4	− 2567	−40.6	× 38 / 133	−11.6
11	59,745	2557.2	− 2583	−25.8	× 50 / 133	−9.7
Sum, rounded to a whole point						−35

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	59,503	2470.8	− 2531	−60.2	× 25 / 139	−10.8
7	59,504	2542.8	− 2552	−9.2	× 25 / 139	−1.7
8	59,505	2541.0	− 2567	−26	× 29 / 139	−5.4
11	59,506	2543.5	− 2583	−39.5	× 60 / 139	−17.1
Sum, rounded to a whole point						−35

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. 6, −17, −29, −1, −20, 23, −6, −26, −35, −35 → −14
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 23 · 2016→2017: 12 · 2017→2018: 28 · 2018→2019: 19 · 2019→2021: 43 · 2021→2022: 29 · 2022→2023: 20 · 2023→2024: 9 · 2024→2025: 0 → average 20.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 20.3 × 2.66 = 54. Upper limit 40, lower limit −68.

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.