Chowchilla 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	41,175	2376.2	− 2432	−55.8	× 240 / 1417	−9.5
4	41,177	2408.2	− 2473	−64.8	× 219 / 1417	−10
5	41,180	2450.8	− 2502	−51.2	× 258 / 1417	−9.3
6	41,181	2500.6	− 2531	−30.4	× 238 / 1417	−5.1
7	41,184	2482.4	− 2552	−69.6	× 220 / 1417	−10.8
8	41,186	2472.0	− 2567	−95	× 242 / 1417	−16.2
Sum, rounded to a whole point						−61

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,081	2389.7	− 2432	−42.3	× 239 / 1425	−7.1
4	38,082	2413.8	− 2473	−59.2	× 240 / 1425	−10
5	38,085	2463.6	− 2502	−38.4	× 224 / 1425	−6
6	38,086	2502.8	− 2531	−28.2	× 243 / 1425	−4.8
7	38,089	2505.8	− 2552	−46.2	× 246 / 1425	−8
8	38,090	2522.8	− 2567	−44.2	× 233 / 1425	−7.2
Sum, rounded to a whole point						−43

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,987	2381.5	− 2432	−50.5	× 254 / 1468	−8.7
4	38,988	2419.4	− 2473	−53.6	× 252 / 1468	−9.2
5	38,990	2443.3	− 2502	−58.7	× 236 / 1468	−9.4
6	38,992	2490.9	− 2531	−40.1	× 231 / 1468	−6.3
7	38,995	2517.4	− 2552	−34.6	× 245 / 1468	−5.8
8	38,997	2530.7	− 2567	−36.3	× 250 / 1468	−6.2
Sum, rounded to a whole point						−46

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	39,008	2382.5	− 2432	−49.5	× 234 / 1427	−8.1
4	39,009	2417.8	− 2473	−55.2	× 254 / 1427	−9.8
5	39,012	2466.1	− 2502	−35.9	× 252 / 1427	−6.3
6	39,013	2489.6	− 2531	−41.4	× 237 / 1427	−6.9
7	39,016	2492.7	− 2552	−59.3	× 204 / 1427	−8.5
8	39,017	2504.8	− 2567	−62.2	× 246 / 1427	−10.7
Sum, rounded to a whole point						−50

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	39,147	2382.7	− 2432	−49.3	× 269 / 1481	−9
4	39,148	2424.9	− 2473	−48.1	× 228 / 1481	−7.4
5	39,149	2456.5	− 2502	−45.5	× 256 / 1481	−7.9
6	39,150	2499.3	− 2531	−31.7	× 263 / 1481	−5.6
7	39,151	2490.9	− 2552	−61.1	× 239 / 1481	−9.9
8	39,152	2496.4	− 2567	−70.6	× 226 / 1481	−10.8
Sum, rounded to a whole point						−50

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,906	2369.0	− 2432	−63	× 222 / 1405	−10
4	38,907	2402.8	− 2473	−70.2	× 232 / 1405	−11.6
5	38,908	2432.0	− 2502	−70	× 227 / 1405	−11.3
6	38,909	2491.2	− 2531	−39.8	× 245 / 1405	−6.9
7	38,910	2508.2	− 2552	−43.8	× 236 / 1405	−7.4
8	38,911	2514.4	− 2567	−52.6	× 243 / 1405	−9.1
Sum, rounded to a whole point						−56

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,961	2364.9	− 2432	−67.1	× 230 / 1427	−10.8
4	38,962	2409.4	− 2473	−63.6	× 230 / 1427	−10.3
5	38,963	2426.1	− 2502	−75.9	× 243 / 1427	−12.9
6	38,964	2460.2	− 2531	−70.8	× 231 / 1427	−11.5
7	38,965	2515.4	− 2552	−36.6	× 248 / 1427	−6.4
8	38,966	2513.3	− 2567	−53.7	× 245 / 1427	−9.2
Sum, rounded to a whole point						−61

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,789	2375.5	− 2432	−56.5	× 253 / 1402	−10.2
4	38,790	2404.6	− 2473	−68.4	× 221 / 1402	−10.8
5	38,791	2424.4	− 2502	−77.6	× 228 / 1402	−12.6
6	38,792	2469.2	− 2531	−61.8	× 241 / 1402	−10.6
7	38,793	2483.2	− 2552	−68.8	× 218 / 1402	−10.7
8	38,794	2527.5	− 2567	−39.5	× 241 / 1402	−6.8
Sum, rounded to a whole point						−62

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,562	2377.9	− 2432	−54.1	× 234 / 1385	−9.1
4	38,563	2418.8	− 2473	−54.2	× 249 / 1385	−9.7
5	38,564	2446.6	− 2502	−55.4	× 218 / 1385	−8.7
6	38,565	2477.2	− 2531	−53.8	× 235 / 1385	−9.1
7	38,566	2492.5	− 2552	−59.5	× 240 / 1385	−10.3
8	38,567	2512.0	− 2567	−55	× 209 / 1385	−8.3
Sum, rounded to a whole point						−55

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,493	2386.0	− 2432	−46	× 197 / 1331	−6.8
4	38,494	2410.2	− 2473	−62.8	× 241 / 1331	−11.4
5	38,495	2457.5	− 2502	−44.5	× 242 / 1331	−8.1
6	38,496	2479.4	− 2531	−51.6	× 203 / 1331	−7.9
7	38,497	2510.1	− 2552	−41.9	× 215 / 1331	−6.8
8	38,498	2517.2	− 2567	−49.8	× 233 / 1331	−8.7
Sum, rounded to a whole point						−50

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −61, −43, −46, −50, −50, −56, −61, −62, −55, −50 → −53.4
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 18 · 2016→2017: 3 · 2017→2018: 4 · 2018→2019: 0 · 2019→2022: 6 · 2022→2023: 5 · 2023→2024: 1 · 2024→2025: 7 · 2025→2026: 5 → average 5.4
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 5.4 × 2.66 = 14.4. Upper limit −39, lower limit −67.8.

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 — 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.

Schools in Chowchilla Elementary

Elementary schools

Middle schools

Wilson Middle