Ravenswood City Elementary: english

The shaded band is this district'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	83,316	2348.6	− 2432	−83.4	× 390 / 2156	−15.1
4	83,319	2397.5	− 2473	−75.5	× 339 / 2156	−11.9
5	83,320	2433.3	− 2502	−68.7	× 366 / 2156	−11.7
6	83,323	2448.0	− 2531	−83	× 369 / 2156	−14.2
7	83,324	2483.3	− 2552	−68.7	× 334 / 2156	−10.6
8	83,327	2495.0	− 2567	−72	× 358 / 2156	−12
Sum, rounded to a whole point						−75

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,247	2350.3	− 2432	−81.7	× 381 / 2128	−14.6
4	77,248	2397.7	− 2473	−75.3	× 382 / 2128	−13.5
5	77,251	2436.5	− 2502	−65.5	× 340 / 2128	−10.5
6	77,253	2468.8	− 2531	−62.2	× 329 / 2128	−9.6
7	77,255	2473.7	− 2552	−78.3	× 351 / 2128	−12.9
8	77,257	2507.7	− 2567	−59.3	× 345 / 2128	−9.6
Sum, rounded to a whole point						−71

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,358	2354.3	− 2432	−77.7	× 344 / 1975	−13.5
4	79,359	2392.3	− 2473	−80.7	× 334 / 1975	−13.6
5	79,362	2424.5	− 2502	−77.5	× 350 / 1975	−13.7
6	79,363	2472.5	− 2531	−58.5	× 307 / 1975	−9.1
7	79,365	2478.2	− 2552	−73.8	× 310 / 1975	−11.6
8	79,368	2490.1	− 2567	−76.9	× 330 / 1975	−12.8
Sum, rounded to a whole point						−74

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,501	2370.4	− 2432	−61.6	× 289 / 1770	−10.1
4	79,503	2404.9	− 2473	−68.1	× 312 / 1770	−12
5	79,505	2439.6	− 2502	−62.4	× 312 / 1770	−11
6	79,507	2439.0	− 2531	−92	× 255 / 1770	−13.3
7	79,509	2501.5	− 2552	−50.5	× 304 / 1770	−8.7
8	79,510	2498.1	− 2567	−68.9	× 298 / 1770	−11.6
Sum, rounded to a whole point						−67

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,016	2359.7	− 2432	−72.3	× 273 / 1596	−12.4
4	80,017	2400.3	− 2473	−72.7	× 274 / 1596	−12.5
5	80,018	2416.7	− 2502	−85.3	× 286 / 1596	−15.3
6	80,019	2434.7	− 2531	−96.3	× 211 / 1596	−12.7
7	80,020	2460.1	− 2552	−91.9	× 252 / 1596	−14.5
8	80,021	2497.6	− 2567	−69.4	× 300 / 1596	−13
Sum, rounded to a whole point						−80

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,290	2325.4	− 2432	−106.6	× 151 / 963	−16.7
4	80,291	2376.0	− 2473	−97	× 138 / 963	−13.9
5	80,292	2407.7	− 2502	−94.3	× 181 / 963	−17.7
6	80,293	2420.9	− 2531	−110.1	× 171 / 963	−19.6
7	80,294	2459.7	− 2552	−92.3	× 155 / 963	−14.9
8	80,295	2469.4	− 2567	−97.6	× 167 / 963	−16.9
Sum, rounded to a whole point						−100

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,254	2300.0	− 2432	−132	× 120 / 924	−17.1
4	80,255	2389.6	− 2473	−83.4	× 152 / 924	−13.7
5	80,256	2401.5	− 2502	−100.5	× 151 / 924	−16.4
6	80,257	2418.8	− 2531	−112.2	× 163 / 924	−19.8
7	80,258	2431.2	− 2552	−120.8	× 170 / 924	−22.2
8	80,259	2447.2	− 2567	−119.8	× 168 / 924	−21.8
Sum, rounded to a whole point						−111

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,274	2295.2	− 2432	−136.8	× 148 / 884	−22.9
4	80,275	2363.3	− 2473	−109.7	× 128 / 884	−15.9
5	80,276	2386.9	− 2502	−115.1	× 147 / 884	−19.1
6	80,277	2402.8	− 2531	−128.2	× 149 / 884	−21.6
7	80,278	2438.8	− 2552	−113.2	× 150 / 884	−19.2
8	80,279	2450.5	− 2567	−116.5	× 162 / 884	−21.3
Sum, rounded to a whole point						−120

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,934	2321.4	− 2432	−110.6	× 137 / 894	−16.9
4	79,935	2357.2	− 2473	−115.8	× 165 / 894	−21.4
5	79,936	2392.9	− 2502	−109.1	× 147 / 894	−17.9
6	79,937	2432.7	− 2531	−98.3	× 141 / 894	−15.5
7	79,938	2445.1	− 2552	−106.9	× 158 / 894	−18.9
8	79,939	2463.4	− 2567	−103.6	× 146 / 894	−16.9
Sum, rounded to a whole point						−108

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,852	2332.7	− 2432	−99.3	× 146 / 909	−15.9
4	79,853	2365.2	− 2473	−107.8	× 150 / 909	−17.8
5	79,854	2385.9	− 2502	−116.1	× 171 / 909	−21.8
6	79,855	2403.7	− 2531	−127.3	× 138 / 909	−19.3
7	79,856	2450.5	− 2552	−101.5	× 151 / 909	−16.9
8	79,857	2456.9	− 2567	−110.1	× 153 / 909	−18.5
Sum, rounded to a whole point						−110

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −75, −71, −74, −67, −80, −100, −111, −120, −108, −110 → −91.6
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: 3 · 2017→2018: 7 · 2018→2019: 13 · 2019→2022: 20 · 2022→2023: 11 · 2023→2024: 9 · 2024→2025: 12 · 2025→2026: 2 → average 9
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 9 × 2.66 = 23.9. Upper limit −67.7, lower limit −115.5.

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 — for a district, the total across its schools. From 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.

Ravenswood City Elementary