Burns Valley: 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	19,386	2369.2	− 2432	−62.8	× 61 / 357	−10.7
4	19,388	2419.9	− 2473	−53.1	× 58 / 357	−8.6
5	19,390	2412.0	− 2502	−90	× 62 / 357	−15.6
6	19,392	2475.1	− 2531	−55.9	× 66 / 357	−10.3
7	19,394	2509.2	− 2552	−42.8	× 61 / 357	−7.3
8	19,395	2556.9	− 2567	−10.1	× 49 / 357	−1.4
Sum, rounded to a whole point						−54

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	18,417	2350.5	− 2432	−81.5	× 64 / 310	−16.8
4	18,419	2389.4	− 2473	−83.6	× 56 / 310	−15.1
5	18,422	2435.1	− 2502	−66.9	× 61 / 310	−13.2
6	18,423	2440.9	− 2531	−90.1	× 63 / 310	−18.3
7	18,426	2475.3	− 2552	−76.7	× 66 / 310	−16.3
Sum, rounded to a whole point						−80

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	18,747	2369.0	− 2432	−63	× 72 / 302	−15
4	18,748	2406.7	− 2473	−66.3	× 57 / 302	−12.5
5	18,751	2446.2	− 2502	−55.8	× 58 / 302	−10.7
6	18,753	2486.0	− 2531	−45	× 63 / 302	−9.4
7	18,755	2478.5	− 2552	−73.5	× 52 / 302	−12.7
Sum, rounded to a whole point						−60

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	18,764	2387.5	− 2432	−44.5	× 75 / 317	−10.5
4	18,767	2408.8	− 2473	−64.2	× 62 / 317	−12.6
5	18,768	2434.3	− 2502	−67.7	× 61 / 317	−13
6	18,771	2478.0	− 2531	−53	× 64 / 317	−10.7
7	18,772	2537.3	− 2552	−14.7	× 55 / 317	−2.6
Sum, rounded to a whole point						−49

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	18,903	2387.7	− 2432	−44.3	× 65 / 307	−9.4
4	18,904	2423.2	− 2473	−49.8	× 61 / 307	−9.9
5	18,905	2431.3	− 2502	−70.7	× 66 / 307	−15.2
6	18,906	2447.7	− 2531	−83.3	× 55 / 307	−14.9
7	18,907	2526.4	− 2552	−25.6	× 60 / 307	−5
Sum, rounded to a whole point						−54

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	18,428	2348.0	− 2432	−84	× 56 / 266	−17.7
4	18,429	2404.0	− 2473	−69	× 59 / 266	−15.3
5	18,430	2434.9	− 2502	−67.1	× 49 / 266	−12.4
6	18,431	2465.0	− 2531	−66	× 48 / 266	−11.9
7	18,432	2500.2	− 2552	−51.8	× 54 / 266	−10.5
Sum, rounded to a whole point						−68

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	18,952	2333.3	− 2432	−98.7	× 70 / 307	−22.5
4	18,953	2387.5	− 2473	−85.5	× 62 / 307	−17.3
5	18,954	2446.4	− 2502	−55.6	× 67 / 307	−12.1
6	18,955	2461.6	− 2531	−69.4	× 48 / 307	−10.9
7	18,956	2506.3	− 2552	−45.7	× 60 / 307	−8.9
Sum, rounded to a whole point						−72

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	18,905	2326.1	− 2432	−105.9	× 75 / 308	−25.8
4	18,906	2364.5	− 2473	−108.5	× 65 / 308	−22.9
5	18,907	2423.0	− 2502	−79	× 64 / 308	−16.4
6	18,908	2468.2	− 2531	−62.8	× 55 / 308	−11.2
7	18,909	2491.7	− 2552	−60.3	× 49 / 308	−9.6
Sum, rounded to a whole point						−86

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	18,857	2329.4	− 2432	−102.6	× 79 / 298	−27.2
4	18,858	2368.6	− 2473	−104.4	× 75 / 298	−26.3
5	18,859	2409.4	− 2502	−92.6	× 77 / 298	−23.9
6	18,860	2452.7	− 2531	−78.3	× 67 / 298	−17.6
Sum, rounded to a whole point						−95

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	18,854	2325.7	− 2432	−106.3	× 76 / 303	−26.7
4	18,855	2389.7	− 2473	−83.3	× 88 / 303	−24.2
5	18,856	2407.6	− 2502	−94.4	× 72 / 303	−22.4
6	18,857	2443.8	− 2531	−87.2	× 67 / 303	−19.3
Sum, rounded to a whole point						−93

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −54, −80, −60, −49, −54, −68, −72, −86, −95, −93 → −71.1
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 26 · 2016→2017: 20 · 2017→2018: 11 · 2018→2019: 5 · 2019→2021: 14 · 2021→2022: 4 · 2022→2023: 14 · 2023→2024: 9 · 2024→2025: 2 → average 11.7
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 11.7 × 2.66 = 31.1. Upper limit −40, lower limit −102.2.

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.