Santa Clarita Valley International: 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.

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	38,728	2358.6	− 2436	−77.4	× 86 / 566	−11.8
4	38,730	2426.8	− 2485	−58.2	× 77 / 566	−7.9
5	38,732	2450.6	− 2528	−77.4	× 85 / 566	−11.6
6	38,734	2494.6	− 2552	−57.4	× 87 / 566	−8.8
7	38,736	2510.2	− 2567	−56.8	× 89 / 566	−8.9
8	38,738	2521.0	− 2586	−65	× 85 / 566	−9.8
11	38,740	2535.4	− 2628	−92.6	× 57 / 566	−9.3
Sum, rounded to a whole point						−68

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,937	2369.5	− 2436	−66.5	× 57 / 459	−8.3
4	35,939	2417.5	− 2485	−67.5	× 74 / 459	−10.9
5	35,940	2445.0	− 2528	−83	× 62 / 459	−11.2
6	35,943	2507.7	− 2552	−44.3	× 68 / 459	−6.6
7	35,945	2561.1	− 2567	−5.9	× 78 / 459	−1
8	35,947	2527.6	− 2586	−58.4	× 65 / 459	−8.3
11	35,948	2497.9	− 2628	−130.1	× 55 / 459	−15.6
Sum, rounded to a whole point						−62

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,644	2394.9	− 2436	−41.1	× 50 / 463	−4.4
4	36,646	2416.0	− 2485	−69	× 53 / 463	−7.9
5	36,648	2430.3	− 2528	−97.7	× 73 / 463	−15.4
6	36,650	2499.4	− 2552	−52.6	× 72 / 463	−8.2
7	36,653	2549.3	− 2567	−17.7	× 76 / 463	−2.9
8	36,654	2535.2	− 2586	−50.8	× 79 / 463	−8.7
11	36,657	2527.7	− 2628	−100.3	× 60 / 463	−13
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	36,618	2385.5	− 2436	−50.5	× 62 / 461	−6.8
4	36,620	2448.9	− 2485	−36.1	× 57 / 461	−4.5
5	36,622	2445.4	− 2528	−82.6	× 58 / 461	−10.4
6	36,624	2522.7	− 2552	−29.3	× 69 / 461	−4.4
7	36,626	2513.2	− 2567	−53.8	× 74 / 461	−8.6
8	36,628	2531.2	− 2586	−54.8	× 77 / 461	−9.2
11	36,630	2544.8	− 2628	−83.2	× 64 / 461	−11.6
Sum, rounded to a whole point						−55

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,787	2419.7	− 2436	−16.3	× 55 / 552	−1.6
4	36,788	2455.7	− 2485	−29.3	× 68 / 552	−3.6
5	36,789	2479.6	− 2528	−48.4	× 76 / 552	−6.7
6	36,790	2492.1	− 2552	−59.9	× 97 / 552	−10.5
7	36,791	2540.0	− 2567	−27	× 101 / 552	−4.9
8	36,792	2568.2	− 2586	−17.8	× 108 / 552	−3.5
11	36,793	2570.5	− 2628	−57.5	× 47 / 552	−4.9
Sum, rounded to a whole point						−36

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,670	2378.1	− 2436	−57.9	× 62 / 420	−8.5
4	36,671	2437.4	− 2485	−47.6	× 39 / 420	−4.4
5	36,672	2435.5	− 2528	−92.5	× 58 / 420	−12.8
6	36,673	2471.6	− 2552	−80.4	× 55 / 420	−10.5
7	36,674	2493.8	− 2567	−73.2	× 79 / 420	−13.8
8	36,675	2547.2	− 2586	−38.8	× 75 / 420	−6.9
11	36,676	2524.8	− 2628	−103.2	× 52 / 420	−12.8
Sum, rounded to a whole point						−70

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,687	2369.8	− 2436	−66.2	× 48 / 367	−8.7
4	36,688	2423.8	− 2485	−61.2	× 55 / 367	−9.2
5	36,689	2434.8	− 2528	−93.2	× 35 / 367	−8.9
6	36,690	2465.2	− 2552	−86.8	× 53 / 367	−12.5
7	36,691	2518.4	− 2567	−48.6	× 53 / 367	−7
8	36,692	2520.6	− 2586	−65.4	× 80 / 367	−14.3
11	36,693	2528.1	− 2628	−99.9	× 43 / 367	−11.7
Sum, rounded to a whole point						−72

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,535	2412.4	− 2436	−23.6	× 36 / 341	−2.5
4	36,536	2422.1	− 2485	−62.9	× 51 / 341	−9.4
5	36,537	2502.8	− 2528	−25.2	× 57 / 341	−4.2
6	36,538	2468.8	− 2552	−83.2	× 40 / 341	−9.8
7	36,539	2484.6	− 2567	−82.4	× 46 / 341	−11.1
8	36,540	2512.3	− 2586	−73.7	× 63 / 341	−13.6
11	36,541	2540.6	− 2628	−87.4	× 48 / 341	−12.3
Sum, rounded to a whole point						−63

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,374	2386.3	− 2436	−49.7	× 54 / 295	−9.1
4	36,375	2455.5	− 2485	−29.5	× 41 / 295	−4.1
5	36,376	2452.4	− 2528	−75.6	× 51 / 295	−13.1
6	36,377	2492.7	− 2552	−59.3	× 57 / 295	−11.5
7	36,378	2525.1	− 2567	−41.9	× 35 / 295	−5
8	36,379	2499.0	− 2586	−87	× 39 / 295	−11.5
11	36,380	2564.6	− 2628	−63.4	× 18 / 295	−3.9
Sum, rounded to a whole point						−58

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −68, −62, −60, −55, −36, −70, −72, −63, −58 → −60.4
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 6 · 2016→2017: 2 · 2017→2018: 5 · 2018→2019: 19 · 2019→2022: 34 · 2022→2023: 2 · 2023→2024: 9 · 2024→2025: 5 → average 10.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 10.3 × 2.66 = 27.4. Upper limit −33, lower limit −87.8.

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.