Roosevelt Elementary: 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	80,937	2349.8	− 2432	−82.2	× 61 / 364	−13.8
4	80,940	2363.2	− 2473	−109.8	× 62 / 364	−18.7
5	80,942	2419.4	− 2502	−82.6	× 65 / 364	−14.8
6	80,944	2428.3	− 2531	−102.7	× 66 / 364	−18.6
7	80,945	2470.5	− 2552	−81.5	× 58 / 364	−13
8	80,948	2495.5	− 2567	−71.5	× 52 / 364	−10.2
Sum, rounded to a whole point						−89

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	75,039	2381.8	− 2432	−50.2	× 33 / 360	−4.6
4	75,040	2352.6	− 2473	−120.4	× 64 / 360	−21.4
5	75,043	2395.1	− 2502	−106.9	× 59 / 360	−17.5
6	75,044	2459.2	− 2531	−71.8	× 71 / 360	−14.2
7	75,046	2453.4	− 2552	−98.6	× 65 / 360	−17.8
8	75,049	2475.6	− 2567	−91.4	× 68 / 360	−17.3
Sum, rounded to a whole point						−93

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,047	2348.9	− 2432	−83.1	× 58 / 355	−13.6
4	77,050	2385.9	− 2473	−87.1	× 36 / 355	−8.8
5	77,052	2383.3	− 2502	−118.7	× 65 / 355	−21.7
6	77,054	2441.0	− 2531	−90	× 59 / 355	−15
7	77,055	2457.1	− 2552	−94.9	× 70 / 355	−18.7
8	77,058	2462.6	− 2567	−104.4	× 67 / 355	−19.7
Sum, rounded to a whole point						−98

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,237	2340.9	− 2432	−91.1	× 52 / 361	−13.1
4	77,239	2345.1	− 2473	−127.9	× 64 / 361	−22.7
5	77,241	2395.9	− 2502	−106.1	× 38 / 361	−11.2
6	77,243	2439.2	− 2531	−91.8	× 71 / 361	−18.1
7	77,245	2475.4	− 2552	−76.6	× 65 / 361	−13.8
8	77,247	2485.3	− 2567	−81.7	× 71 / 361	−16.1
Sum, rounded to a whole point						−95

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,752	2311.1	− 2432	−120.9	× 49 / 345	−17.2
4	77,753	2362.7	− 2473	−110.3	× 45 / 345	−14.4
5	77,754	2388.4	− 2502	−113.6	× 66 / 345	−21.7
6	77,755	2439.2	− 2531	−91.8	× 39 / 345	−10.4
7	77,756	2469.4	− 2552	−82.6	× 62 / 345	−14.8
8	77,757	2480.7	− 2567	−86.3	× 84 / 345	−21
Sum, rounded to a whole point						−100

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,902	2357.2	− 2432	−74.8	× 44 / 249	−13.2
4	77,903	2399.6	− 2473	−73.4	× 37 / 249	−10.9
5	77,904	2382.0	− 2502	−120	× 40 / 249	−19.3
6	77,905	2457.1	− 2531	−73.9	× 55 / 249	−16.3
7	77,906	2468.6	− 2552	−83.4	× 29 / 249	−9.7
8	77,907	2510.9	− 2567	−56.1	× 44 / 249	−9.9
Sum, rounded to a whole point						−79

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,894	2318.0	− 2432	−114	× 36 / 263	−15.6
4	77,895	2364.7	− 2473	−108.3	× 47 / 263	−19.4
5	77,896	2411.8	− 2502	−90.2	× 43 / 263	−14.7
6	77,897	2417.8	− 2531	−113.2	× 42 / 263	−18.1
7	77,898	2455.8	− 2552	−96.2	× 66 / 263	−24.1
8	77,899	2500.7	− 2567	−66.3	× 29 / 263	−7.3
Sum, rounded to a whole point						−99

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,912	2340.7	− 2432	−91.3	× 23 / 217	−9.7
4	77,913	2336.9	− 2473	−136.1	× 30 / 217	−18.8
5	77,914	2424.0	− 2502	−78	× 35 / 217	−12.6
6	77,915	2417.5	− 2531	−113.5	× 34 / 217	−17.8
7	77,916	2460.0	− 2552	−92	× 31 / 217	−13.1
8	77,917	2469.4	− 2567	−97.6	× 64 / 217	−28.8
Sum, rounded to a whole point						−101

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,574	2332.9	− 2432	−99.1	× 23 / 192	−11.9
4	77,575	2397.5	− 2473	−75.5	× 30 / 192	−11.8
5	77,576	2346.2	− 2502	−155.8	× 35 / 192	−28.4
6	77,577	2445.6	− 2531	−85.4	× 33 / 192	−14.7
7	77,578	2468.0	− 2552	−84	× 32 / 192	−14
8	77,579	2443.2	− 2567	−123.8	× 39 / 192	−25.1
Sum, rounded to a whole point						−106

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −89, −93, −98, −95, −100, −79, −99, −101, −106 → −95.6
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 4 · 2016→2017: 5 · 2017→2018: 3 · 2018→2019: 5 · 2019→2022: 21 · 2022→2023: 20 · 2023→2024: 2 · 2024→2025: 5 → average 8.1
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 8.1 × 2.66 = 21.5. Upper limit −74.1, lower limit −117.1.

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.