Walnut Creek 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	8,398	2465.6	− 2432	33.6	× 379 / 2375	5.4
4	8,401	2511.8	− 2473	38.8	× 400 / 2375	6.5
5	8,402	2545.9	− 2502	43.9	× 410 / 2375	7.6
6	8,405	2563.4	− 2531	32.4	× 420 / 2375	5.7
7	8,406	2581.7	− 2552	29.7	× 396 / 2375	5
8	8,409	2605.8	− 2567	38.8	× 370 / 2375	6
Sum, rounded to a whole point						36

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,518	2476.1	− 2432	44.1	× 381 / 2369	7.1
4	7,521	2527.8	− 2473	54.8	× 365 / 2369	8.4
5	7,522	2560.4	− 2502	58.4	× 406 / 2369	10
6	7,524	2568.7	− 2531	37.7	× 406 / 2369	6.5
7	7,527	2596.0	− 2552	44	× 408 / 2369	7.6
8	7,529	2610.0	− 2567	43	× 403 / 2369	7.3
Sum, rounded to a whole point						47

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,750	2464.7	− 2432	32.7	× 376 / 2363	5.2
4	7,753	2520.2	− 2473	47.2	× 396 / 2363	7.9
5	7,755	2556.0	− 2502	54	× 379 / 2363	8.7
6	7,757	2572.2	− 2531	41.2	× 403 / 2363	7
7	7,758	2592.5	− 2552	40.5	× 411 / 2363	7
8	7,760	2616.8	− 2567	49.8	× 398 / 2363	8.4
Sum, rounded to a whole point						44

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,768	2476.3	− 2432	44.3	× 352 / 2317	6.7
4	7,771	2515.4	− 2473	42.4	× 386 / 2317	7.1
5	7,772	2562.7	− 2502	60.7	× 394 / 2317	10.3
6	7,775	2575.9	− 2531	44.9	× 374 / 2317	7.2
7	7,776	2596.5	− 2552	44.5	× 403 / 2317	7.7
8	7,779	2610.2	− 2567	43.2	× 408 / 2317	7.6
Sum, rounded to a whole point						47

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,814	2470.9	− 2432	38.9	× 357 / 2265	6.1
4	7,815	2523.7	− 2473	50.7	× 355 / 2265	7.9
5	7,816	2557.9	− 2502	55.9	× 379 / 2265	9.4
6	7,817	2580.9	− 2531	49.9	× 400 / 2265	8.8
7	7,818	2604.0	− 2552	52	× 374 / 2265	8.6
8	7,819	2613.8	− 2567	46.8	× 400 / 2265	8.3
Sum, rounded to a whole point						49

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,747	2470.5	− 2432	38.5	× 351 / 2144	6.3
4	7,748	2531.6	− 2473	58.6	× 357 / 2144	9.8
5	7,749	2542.1	− 2502	40.1	× 338 / 2144	6.3
6	7,750	2567.0	− 2531	36	× 368 / 2144	6.2
7	7,751	2599.6	− 2552	47.6	× 370 / 2144	8.2
8	7,752	2607.8	− 2567	40.8	× 360 / 2144	6.9
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	7,733	2469.1	− 2432	37.1	× 381 / 2196	6.4
4	7,734	2522.9	− 2473	49.9	× 342 / 2196	7.8
5	7,735	2558.3	− 2502	56.3	× 354 / 2196	9.1
6	7,736	2570.2	− 2531	39.2	× 346 / 2196	6.2
7	7,737	2591.3	− 2552	39.3	× 396 / 2196	7.1
8	7,738	2598.6	− 2567	31.6	× 377 / 2196	5.4
Sum, rounded to a whole point						42

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,677	2470.1	− 2432	38.1	× 373 / 2256	6.3
4	7,678	2511.7	− 2473	38.7	× 394 / 2256	6.8
5	7,679	2560.5	− 2502	58.5	× 350 / 2256	9.1
6	7,680	2573.7	− 2531	42.7	× 381 / 2256	7.2
7	7,681	2586.1	− 2552	34.1	× 356 / 2256	5.4
8	7,682	2600.4	− 2567	33.4	× 402 / 2256	6
Sum, rounded to a whole point						41

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,634	2463.0	− 2432	31	× 403 / 2264	5.5
4	7,635	2516.6	− 2473	43.6	× 374 / 2264	7.2
5	7,636	2563.6	− 2502	61.6	× 392 / 2264	10.7
6	7,637	2586.1	− 2531	55.1	× 356 / 2264	8.7
7	7,638	2599.3	− 2552	47.3	× 385 / 2264	8
8	7,639	2617.0	− 2567	50	× 354 / 2264	7.8
Sum, rounded to a whole point						48

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,636	2473.3	− 2432	41.3	× 370 / 2287	6.7
4	7,637	2519.1	− 2473	46.1	× 410 / 2287	8.3
5	7,638	2557.1	− 2502	55.1	× 377 / 2287	9.1
6	7,639	2583.9	− 2531	52.9	× 401 / 2287	9.3
7	7,640	2609.7	− 2552	57.7	× 351 / 2287	8.9
8	7,641	2614.2	− 2567	47.2	× 378 / 2287	7.8
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. 36, 47, 44, 47, 49, 44, 42, 41, 48, 50 → 44.8
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 11 · 2016→2017: 3 · 2017→2018: 3 · 2018→2019: 2 · 2019→2022: 5 · 2022→2023: 2 · 2023→2024: 1 · 2024→2025: 7 · 2025→2026: 2 → average 4
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 4 × 2.66 = 10.6. Upper limit 55.4, lower limit 34.2.

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.

Walnut Creek Elementary