Mary Collins Charter School at Cherry Valley: 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.

Measured against the grade bars

The state's math test uses one scale for every grade, so a score means the same thing in grade 3 as in grade 8.

3rd The average 3rd grader meets the grade 3 bar. 2441 vs. 2436.
4th The average 4th grader meets the grade 4 bar. 2516 vs. 2485.
5th The average 5th grader scores 15 points under the grade 5 bar. 2513 vs. 2528.
6th The average 6th grader scores 16 points under the grade 6 bar. 2536 vs. 2552.
7th The average 7th grader scores 13 points under the grade 7 bar. 2554 vs. 2567.
8th The average 8th grader scores just under the grade 7 bar. 2558 vs. 2567. The 8th-grade bar is 2586.

2026 results. "Meets standard" is the state's mark for being on track for that grade.

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	94,802	2413.1	− 2436	−22.9	× 50 / 286	−4
4	94,805	2456.7	− 2485	−28.3	× 55 / 286	−5.4
5	94,806	2491.1	− 2528	−36.9	× 46 / 286	−5.9
6	94,808	2512.5	− 2552	−39.5	× 55 / 286	−7.6
7	94,811	2572.3	− 2567	5.3	× 34 / 286	0.6
8	94,812	2550.9	− 2586	−35.1	× 46 / 286	−5.6
Sum, rounded to a whole point						−28

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	88,054	2415.6	− 2436	−20.4	× 46 / 251	−3.7
4	88,056	2471.7	− 2485	−13.3	× 47 / 251	−2.5
5	88,058	2508.6	− 2528	−19.4	× 56 / 251	−4.3
6	88,060	2536.8	− 2552	−15.2	× 39 / 251	−2.4
7	88,062	2545.8	− 2567	−21.2	× 30 / 251	−2.5
8	88,064	2591.2	− 2586	5.2	× 33 / 251	0.7
Sum, rounded to a whole point						−15

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,603	2414.3	− 2436	−21.7	× 53 / 257	−4.5
4	90,604	2485.8	− 2485	0.8	× 42 / 257	0.1
5	90,606	2516.2	− 2528	−11.8	× 50 / 257	−2.3
6	90,608	2511.6	− 2552	−40.4	× 52 / 257	−8.2
7	90,610	2520.2	− 2567	−46.8	× 31 / 257	−5.6
8	90,613	2548.2	− 2586	−37.8	× 29 / 257	−4.3
Sum, rounded to a whole point						−25

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,808	2394.9	− 2436	−41.1	× 37 / 244	−6.2
4	90,809	2463.1	− 2485	−21.9	× 48 / 244	−4.3
5	90,812	2520.0	− 2528	−8	× 41 / 244	−1.3
6	90,813	2531.3	− 2552	−20.7	× 49 / 244	−4.2
7	90,816	2558.0	− 2567	−9	× 41 / 244	−1.5
8	90,817	2562.0	− 2586	−24	× 28 / 244	−2.8
Sum, rounded to a whole point						−20

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,450	2385.9	− 2436	−50.1	× 40 / 252	−8
4	91,451	2453.4	− 2485	−31.6	× 40 / 252	−5
5	91,452	2498.0	− 2528	−30	× 51 / 252	−6.1
6	91,453	2520.9	− 2552	−31.1	× 42 / 252	−5.2
7	91,454	2555.9	− 2567	−11.1	× 40 / 252	−1.8
8	91,455	2564.1	− 2586	−21.9	× 39 / 252	−3.4
Sum, rounded to a whole point						−29

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	89,487	2492.4	− 2552	−59.6	× 41 / 122	−20
7	89,488	2538.1	− 2567	−28.9	× 40 / 122	−9.5
8	89,489	2561.0	− 2586	−25	× 41 / 122	−8.4
Sum, rounded to a whole point						−38

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,692	2402.7	− 2436	−33.3	× 51 / 275	−6.2
4	91,693	2494.8	− 2485	9.8	× 39 / 275	1.4
5	91,694	2523.3	− 2528	−4.7	× 49 / 275	−0.8
6	91,695	2512.4	− 2552	−39.6	× 44 / 275	−6.3
7	91,696	2525.2	− 2567	−41.8	× 48 / 275	−7.3
8	91,697	2541.1	− 2586	−44.9	× 44 / 275	−7.2
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	91,586	2404.3	− 2436	−31.7	× 50 / 280	−5.7
4	91,587	2487.7	− 2485	2.7	× 49 / 280	0.5
5	91,588	2513.5	− 2528	−14.5	× 42 / 280	−2.2
6	91,589	2532.7	− 2552	−19.3	× 49 / 280	−3.4
7	91,590	2547.8	− 2567	−19.2	× 45 / 280	−3.1
8	91,591	2529.5	− 2586	−56.5	× 45 / 280	−9.1
Sum, rounded to a whole point						−23

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,529	2404.0	− 2436	−32	× 46 / 306	−4.8
4	91,530	2505.1	− 2485	20.1	× 64 / 306	4.2
5	91,531	2526.0	− 2528	−2	× 61 / 306	−0.4
6	91,532	2507.4	− 2552	−44.6	× 42 / 306	−6.1
7	91,533	2581.8	− 2567	14.8	× 49 / 306	2.4
8	91,534	2555.8	− 2586	−30.2	× 44 / 306	−4.3
Sum, rounded to a whole point						−9

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,233	2434.2	− 2436	−1.8	× 53 / 322	−0.3
4	91,234	2496.1	− 2485	11.1	× 53 / 322	1.8
5	91,235	2523.7	− 2528	−4.3	× 64 / 322	−0.9
6	91,236	2527.0	− 2552	−25	× 63 / 322	−4.9
7	91,237	2556.2	− 2567	−10.8	× 41 / 322	−1.4
8	91,238	2580.9	− 2586	−5.1	× 48 / 322	−0.8
Sum, rounded to a whole point						−6

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,884	2440.9	− 2436	4.9	× 47 / 321	0.7
4	90,885	2516.4	− 2485	31.4	× 57 / 321	5.6
5	90,886	2512.9	− 2528	−15.1	× 58 / 321	−2.7
6	90,887	2536.2	− 2552	−15.8	× 63 / 321	−3.1
7	90,888	2553.7	− 2567	−13.3	× 55 / 321	−2.3
8	90,889	2557.7	− 2586	−28.3	× 41 / 321	−3.6
Sum, rounded to a whole point						−5

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −28, −15, −25, −20, −29, −38, −26, −23, −9, −6, −5 → −20.4
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 13 · 2016→2017: 10 · 2017→2018: 5 · 2018→2019: 9 · 2019→2021: 9 · 2021→2022: 12 · 2022→2023: 3 · 2023→2024: 14 · 2024→2025: 3 · 2025→2026: 1 → average 7.9
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 7.9 × 2.66 = 21. Upper limit 0.6, lower limit −41.4.

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.