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	83,572	2368.6	− 2432	−63.4	× 83 / 368	−14.3
4	83,575	2448.1	− 2473	−24.9	× 60 / 368	−4.1
5	83,576	2459.1	− 2502	−42.9	× 53 / 368	−6.2
6	83,579	2494.6	− 2531	−36.4	× 79 / 368	−7.8
7	83,580	2514.7	− 2552	−37.3	× 49 / 368	−5
8	83,583	2552.0	− 2567	−15	× 44 / 368	−1.8
Sum, rounded to a whole point						−39

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,513	2400.1	− 2432	−31.9	× 75 / 398	−6
4	77,515	2437.1	− 2473	−35.9	× 72 / 398	−6.5
5	77,517	2498.2	− 2502	−3.8	× 61 / 398	−0.6
6	77,519	2482.9	− 2531	−48.1	× 60 / 398	−7.3
7	77,521	2539.8	− 2552	−12.2	× 77 / 398	−2.4
8	77,523	2534.3	− 2567	−32.7	× 53 / 398	−4.4
Sum, rounded to a whole point						−27

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,650	2423.9	− 2432	−8.1	× 48 / 392	−1
4	79,651	2445.8	− 2473	−27.2	× 68 / 392	−4.7
5	79,653	2479.6	− 2502	−22.4	× 74 / 392	−4.2
6	79,655	2480.5	− 2531	−50.5	× 61 / 392	−7.9
7	79,657	2511.6	− 2552	−40.4	× 59 / 392	−6.1
8	79,659	2552.8	− 2567	−14.2	× 82 / 392	−3
Sum, rounded to a whole point						−27

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,787	2419.0	− 2432	−13	× 57 / 343	−2.2
4	79,788	2480.0	− 2473	7	× 47 / 343	1
5	79,791	2509.7	− 2502	7.7	× 58 / 343	1.3
6	79,792	2487.0	− 2531	−44	× 70 / 343	−9
7	79,795	2527.3	− 2552	−24.7	× 54 / 343	−3.9
8	79,796	2524.7	− 2567	−42.3	× 57 / 343	−7
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	80,284	2414.2	− 2432	−17.8	× 56 / 339	−2.9
4	80,285	2471.7	− 2473	−1.3	× 55 / 339	−0.2
5	80,286	2524.9	− 2502	22.9	× 51 / 339	3.4
6	80,287	2488.7	− 2531	−42.3	× 53 / 339	−6.6
7	80,288	2529.8	− 2552	−22.2	× 73 / 339	−4.8
8	80,289	2546.3	− 2567	−20.7	× 51 / 339	−3.1
Sum, rounded to a whole point						−14

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,514	2373.3	− 2432	−58.7	× 61 / 420	−8.5
4	80,515	2425.3	− 2473	−47.7	× 73 / 420	−8.3
5	80,516	2443.0	− 2502	−59	× 84 / 420	−11.8
6	80,517	2446.7	− 2531	−84.3	× 72 / 420	−14.5
7	80,518	2563.2	− 2552	11.2	× 71 / 420	1.9
8	80,519	2549.8	− 2567	−17.2	× 59 / 420	−2.4
Sum, rounded to a whole point						−44

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,480	2362.5	− 2432	−69.5	× 77 / 326	−16.4
4	80,481	2365.3	− 2473	−107.7	× 56 / 326	−18.5
5	80,482	2411.1	− 2502	−90.9	× 64 / 326	−17.8
7	80,484	2433.5	− 2552	−118.5	× 61 / 326	−22.2
8	80,485	2547.9	− 2567	−19.1	× 68 / 326	−4
Sum, rounded to a whole point						−79

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,498	2362.6	− 2432	−69.4	× 57 / 246	−16.1
4	80,499	2382.8	− 2473	−90.2	× 74 / 246	−27.1
5	80,500	2386.5	− 2502	−115.5	× 53 / 246	−24.9
8	80,501	2463.9	− 2567	−103.1	× 62 / 246	−26
Sum, rounded to a whole point						−94

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,156	2367.9	− 2432	−64.1	× 61 / 193	−20.3
4	80,157	2424.3	− 2473	−48.7	× 63 / 193	−15.9
5	80,158	2430.7	− 2502	−71.3	× 69 / 193	−25.5
Sum, rounded to a whole point						−62

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −39, −27, −27, −20, −14, −44, −79, −94, −62 → −45.1
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 12 · 2016→2017: 0 · 2017→2018: 7 · 2018→2019: 6 · 2019→2022: 30 · 2022→2023: 35 · 2023→2024: 15 · 2024→2025: 32 → average 17.1
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 17.1 × 2.66 = 45.5. Upper limit 0.4, lower limit −90.6.

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.