CORE Butte 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.

Measured against the grade bars

The state's English test uses one scale for every grade, so a score means the same thing in grade 3 as in grade 11.

3rd The average 3rd grader scores 42 points under the grade 3 bar. 2390 vs. 2432.
4th The average 4th grader scores 16 points under the grade 4 bar. 2457 vs. 2473.
5th The average 5th grader scores 18 points under the grade 5 bar. 2484 vs. 2502.
6th The average 6th grader scores 23 points under the grade 6 bar. 2508 vs. 2531.
7th The average 7th grader meets the grade 7 bar. 2556 vs. 2552.
8th The average 8th grader meets the grade 8 bar. 2575 vs. 2567.
11th The average 11th grader meets the grade 11 bar. 2598 vs. 2583.

2026 results. The English test covers reading, writing, listening and research together. "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	4,229	2393.4	− 2432	−38.6	× 34 / 287	−4.6
4	4,230	2448.8	− 2473	−24.2	× 35 / 287	−3
5	4,233	2495.8	− 2502	−6.2	× 46 / 287	−1
6	4,234	2531.4	− 2531	0.4	× 39 / 287	0.1
7	4,237	2557.7	− 2552	5.7	× 31 / 287	0.6
8	4,238	2562.8	− 2567	−4.2	× 45 / 287	−0.7
11	4,241	2610.8	− 2583	27.8	× 57 / 287	5.5
Sum, rounded to a whole point						−3

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	3,735	2420.5	− 2432	−11.5	× 35 / 340	−1.2
4	3,736	2473.2	− 2473	0.2	× 41 / 340	0
5	3,738	2510.7	− 2502	8.7	× 32 / 340	0.8
6	3,741	2523.2	− 2531	−7.8	× 50 / 340	−1.1
7	3,742	2571.8	− 2552	19.8	× 40 / 340	2.3
8	3,745	2572.4	− 2567	5.4	× 38 / 340	0.6
11	3,747	2619.4	− 2583	36.4	× 104 / 340	11.1
Sum, rounded to a whole point						13

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	3,823	2444.5	− 2432	12.5	× 44 / 351	1.6
4	3,824	2478.2	− 2473	5.2	× 38 / 351	0.6
5	3,826	2521.9	− 2502	19.9	× 51 / 351	2.9
6	3,829	2546.9	− 2531	15.9	× 36 / 351	1.6
7	3,830	2590.4	− 2552	38.4	× 49 / 351	5.4
8	3,832	2608.1	− 2567	41.1	× 47 / 351	5.5
11	3,835	2605.8	− 2583	22.8	× 86 / 351	5.6
Sum, rounded to a whole point						23

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	3,825	2431.1	− 2432	−0.9	× 40 / 393	−0.1
4	3,826	2449.4	− 2473	−23.6	× 42 / 393	−2.5
5	3,829	2501.5	− 2502	−0.5	× 42 / 393	−0.1
6	3,830	2537.6	− 2531	6.6	× 60 / 393	1
7	3,833	2560.1	− 2552	8.1	× 46 / 393	0.9
8	3,834	2589.2	− 2567	22.2	× 61 / 393	3.4
11	3,837	2618.6	− 2583	35.6	× 102 / 393	9.2
Sum, rounded to a whole point						12

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	3,858	2416.9	− 2432	−15.1	× 58 / 423	−2.1
4	3,859	2456.5	− 2473	−16.5	× 48 / 423	−1.9
5	3,860	2501.5	− 2502	−0.5	× 55 / 423	−0.1
6	3,861	2517.9	− 2531	−13.1	× 53 / 423	−1.6
7	3,862	2571.8	− 2552	19.8	× 56 / 423	2.6
8	3,863	2580.7	− 2567	13.7	× 60 / 423	1.9
11	3,864	2620.5	− 2583	37.5	× 93 / 423	8.2
Sum, rounded to a whole point						7

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	3,702	2400.6	− 2432	−31.4	× 43 / 405	−3.3
4	3,703	2451.3	− 2473	−21.7	× 45 / 405	−2.4
5	3,704	2476.9	− 2502	−25.1	× 45 / 405	−2.8
6	3,705	2527.7	− 2531	−3.3	× 43 / 405	−0.4
7	3,706	2550.7	− 2552	−1.3	× 63 / 405	−0.2
8	3,707	2581.6	− 2567	14.6	× 59 / 405	2.1
11	3,708	2625.6	− 2583	42.6	× 107 / 405	11.3
Sum, rounded to a whole point						4

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	3,738	2413.6	− 2432	−18.4	× 43 / 414	−1.9
4	3,739	2450.2	− 2473	−22.8	× 43 / 414	−2.4
5	3,740	2489.0	− 2502	−13	× 47 / 414	−1.5
6	3,741	2503.6	− 2531	−27.4	× 56 / 414	−3.7
7	3,742	2545.5	− 2552	−6.5	× 51 / 414	−0.8
8	3,743	2569.4	− 2567	2.4	× 83 / 414	0.5
11	3,744	2615.3	− 2583	32.3	× 91 / 414	7.1
Sum, rounded to a whole point						−3

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	3,722	2380.5	− 2432	−51.5	× 38 / 404	−4.8
4	3,723	2471.8	− 2473	−1.2	× 39 / 404	−0.1
5	3,724	2480.7	− 2502	−21.3	× 47 / 404	−2.5
6	3,725	2529.0	− 2531	−2	× 45 / 404	−0.2
7	3,726	2540.3	− 2552	−11.7	× 70 / 404	−2
8	3,727	2555.1	− 2567	−11.9	× 55 / 404	−1.6
11	3,728	2593.4	− 2583	10.4	× 110 / 404	2.8
Sum, rounded to a whole point						−8

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	3,688	2404.1	− 2432	−27.9	× 37 / 402	−2.6
4	3,689	2431.6	− 2473	−41.4	× 40 / 402	−4.1
5	3,690	2501.7	− 2502	−0.3	× 37 / 402	0
6	3,691	2516.9	− 2531	−14.1	× 58 / 402	−2
7	3,692	2554.8	− 2552	2.8	× 65 / 402	0.5
8	3,693	2575.2	− 2567	8.2	× 73 / 402	1.5
11	3,694	2588.2	− 2583	5.2	× 92 / 402	1.2
Sum, rounded to a whole point						−6

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	3,648	2406.2	− 2432	−25.8	× 50 / 413	−3.1
4	3,649	2448.5	− 2473	−24.5	× 35 / 413	−2.1
5	3,650	2481.2	− 2502	−20.8	× 44 / 413	−2.2
6	3,651	2521.1	− 2531	−9.9	× 48 / 413	−1.2
7	3,652	2555.6	− 2552	3.6	× 70 / 413	0.6
8	3,653	2568.8	− 2567	1.8	× 68 / 413	0.3
11	3,654	2624.7	− 2583	41.7	× 98 / 413	9.9
Sum, rounded to a whole point						2

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	3,624	2390.3	− 2432	−41.7	× 31 / 399	−3.2
4	3,625	2456.7	− 2473	−16.3	× 55 / 399	−2.2
5	3,626	2484.3	− 2502	−17.7	× 45 / 399	−2
6	3,627	2508.3	− 2531	−22.7	× 52 / 399	−3
7	3,628	2555.5	− 2552	3.5	× 61 / 399	0.5
8	3,629	2575.1	− 2567	8.1	× 68 / 399	1.4
11	3,630	2597.7	− 2583	14.7	× 87 / 399	3.2
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. −3, 13, 23, 12, 7, 4, −3, −8, −6, 2, −5 → 3.3
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: 10 · 2017→2018: 11 · 2018→2019: 5 · 2019→2021: 3 · 2021→2022: 7 · 2022→2023: 5 · 2023→2024: 2 · 2024→2025: 8 · 2025→2026: 7 → average 7.4
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 7.4 × 2.66 = 19.7. Upper limit 23, lower limit −16.4.

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.