Valentine Peyton 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	80,546	2396.5	− 2432	−35.5	× 98 / 588	−5.9
4	80,548	2414.7	− 2473	−58.3	× 66 / 588	−6.5
5	80,549	2463.0	− 2502	−39	× 132 / 588	−8.8
6	80,552	2505.2	− 2531	−25.8	× 99 / 588	−4.3
7	80,554	2535.1	− 2552	−16.9	× 96 / 588	−2.8
8	80,556	2533.8	− 2567	−33.2	× 97 / 588	−5.5
Sum, rounded to a whole point						−34

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	74,646	2395.1	− 2432	−36.9	× 92 / 559	−6.1
4	74,649	2429.0	− 2473	−44	× 99 / 559	−7.8
5	74,650	2472.2	− 2502	−29.8	× 64 / 559	−3.4
6	74,653	2490.4	− 2531	−40.6	× 116 / 559	−8.4
7	74,655	2517.5	− 2552	−34.5	× 92 / 559	−5.7
8	74,657	2557.2	− 2567	−9.8	× 96 / 559	−1.7
Sum, rounded to a whole point						−33

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	76,632	2396.1	− 2432	−35.9	× 83 / 546	−5.5
4	76,633	2420.6	− 2473	−52.4	× 86 / 546	−8.3
5	76,636	2471.5	− 2502	−30.5	× 93 / 546	−5.2
6	76,637	2496.9	− 2531	−34.1	× 64 / 546	−4
7	76,640	2520.0	− 2552	−32	× 123 / 546	−7.2
8	76,642	2554.3	− 2567	−12.7	× 97 / 546	−2.3
Sum, rounded to a whole point						−32

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	76,815	2428.5	− 2432	−3.5	× 82 / 533	−0.5
4	76,816	2435.9	− 2473	−37.1	× 86 / 533	−6
5	76,819	2483.0	− 2502	−19	× 90 / 533	−3.2
6	76,820	2508.1	− 2531	−22.9	× 92 / 533	−4
7	76,823	2546.3	− 2552	−5.7	× 67 / 533	−0.7
8	76,824	2547.3	− 2567	−19.7	× 116 / 533	−4.3
Sum, rounded to a whole point						−19

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,314	2442.0	− 2432	10	× 74 / 504	1.5
4	77,315	2456.2	− 2473	−16.8	× 93 / 504	−3.1
5	77,316	2476.7	− 2502	−25.3	× 81 / 504	−4.1
6	77,317	2513.1	− 2531	−17.9	× 92 / 504	−3.3
7	77,318	2561.2	− 2552	9.2	× 96 / 504	1.8
8	77,319	2562.9	− 2567	−4.1	× 68 / 504	−0.6
Sum, rounded to a whole point						−8

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,466	2411.5	− 2432	−20.5	× 93 / 533	−3.6
4	77,467	2447.0	− 2473	−26	× 93 / 533	−4.5
5	77,468	2500.5	− 2502	−1.5	× 92 / 533	−0.3
6	77,469	2538.2	− 2531	7.2	× 94 / 533	1.3
7	77,470	2576.4	− 2552	24.4	× 76 / 533	3.5
8	77,471	2584.2	− 2567	17.2	× 85 / 533	2.7
Sum, rounded to a whole point						−1

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,452	2414.3	− 2432	−17.7	× 91 / 554	−2.9
4	77,453	2447.6	− 2473	−25.4	× 98 / 554	−4.5
5	77,454	2495.5	− 2502	−6.5	× 96 / 554	−1.1
6	77,455	2548.3	− 2531	17.3	× 96 / 554	3
7	77,456	2602.0	− 2552	50	× 94 / 554	8.5
8	77,457	2607.5	− 2567	40.5	× 79 / 554	5.8
Sum, rounded to a whole point						9

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,452	2403.6	− 2432	−28.4	× 79 / 553	−4.1
4	77,453	2438.2	− 2473	−34.8	× 96 / 553	−6
5	77,454	2467.1	− 2502	−34.9	× 102 / 553	−6.4
6	77,455	2545.1	− 2531	14.1	× 91 / 553	2.3
7	77,456	2586.5	− 2552	34.5	× 93 / 553	5.8
8	77,457	2614.9	− 2567	47.9	× 92 / 553	8
Sum, rounded to a whole point						0

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,106	2400.3	− 2432	−31.7	× 73 / 518	−4.5
4	77,107	2439.1	− 2473	−33.9	× 83 / 518	−5.4
5	77,108	2496.2	− 2502	−5.8	× 91 / 518	−1
6	77,109	2528.4	− 2531	−2.6	× 92 / 518	−0.5
7	77,110	2581.9	− 2552	29.9	× 84 / 518	4.8
8	77,111	2613.5	− 2567	46.5	× 95 / 518	8.5
Sum, rounded to a whole point						2

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −34, −33, −32, −19, −8, −1, 9, 0, 2 → −12.9
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 1 · 2016→2017: 1 · 2017→2018: 13 · 2018→2019: 11 · 2019→2022: 7 · 2022→2023: 10 · 2023→2024: 9 · 2024→2025: 2 → average 6.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 6.8 × 2.66 = 18.1. Upper limit 5.2, lower limit −31.

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.