Valle Lindo Elementary: math

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	38,114	2422.2	− 2436	−13.8	× 150 / 794	−2.6
4	38,115	2452.6	− 2485	−32.4	× 111 / 794	−4.5
5	38,118	2482.6	− 2528	−45.4	× 121 / 794	−6.9
6	38,119	2523.1	− 2552	−28.9	× 128 / 794	−4.7
7	38,122	2517.3	− 2567	−49.7	× 140 / 794	−8.8
8	38,123	2534.2	− 2586	−51.8	× 144 / 794	−9.4
Sum, rounded to a whole point						−37

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,389	2444.4	− 2436	8.4	× 138 / 768	1.5
4	35,390	2457.0	− 2485	−28	× 139 / 768	−5.1
5	35,392	2480.4	− 2528	−47.6	× 101 / 768	−6.3
6	35,394	2538.9	− 2552	−13.1	× 120 / 768	−2
7	35,396	2536.7	− 2567	−30.3	× 132 / 768	−5.2
8	35,399	2536.4	− 2586	−49.6	× 138 / 768	−8.9
Sum, rounded to a whole point						−26

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,086	2438.0	− 2436	2	× 123 / 743	0.3
4	36,089	2466.3	− 2485	−18.7	× 142 / 743	−3.6
5	36,090	2466.0	− 2528	−62	× 135 / 743	−11.3
6	36,092	2538.1	− 2552	−13.9	× 96 / 743	−1.8
7	36,094	2528.5	− 2567	−38.5	× 120 / 743	−6.2
8	36,097	2544.0	− 2586	−42	× 127 / 743	−7.2
Sum, rounded to a whole point						−30

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,087	2454.5	− 2436	18.5	× 113 / 732	2.9
4	36,089	2469.5	− 2485	−15.5	× 122 / 732	−2.6
5	36,091	2499.3	− 2528	−28.7	× 138 / 732	−5.4
6	36,093	2518.8	− 2552	−33.2	× 138 / 732	−6.3
7	36,095	2523.7	− 2567	−43.3	× 101 / 732	−6
8	36,097	2530.5	− 2586	−55.5	× 120 / 732	−9.1
Sum, rounded to a whole point						−26

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,258	2452.9	− 2436	16.9	× 100 / 749	2.3
4	36,259	2494.0	− 2485	9	× 113 / 749	1.4
5	36,260	2461.1	− 2528	−66.9	× 130 / 749	−11.6
6	36,261	2542.2	− 2552	−9.8	× 151 / 749	−2
7	36,262	2492.2	− 2567	−74.8	× 149 / 749	−14.9
8	36,263	2517.3	− 2586	−68.7	× 106 / 749	−9.7
Sum, rounded to a whole point						−35

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,157	2422.4	− 2436	−13.6	× 90 / 611	−2
4	36,158	2457.3	− 2485	−27.7	× 73 / 611	−3.3
5	36,159	2456.3	− 2528	−71.7	× 108 / 611	−12.7
6	36,160	2508.1	− 2552	−43.9	× 99 / 611	−7.1
7	36,161	2497.0	− 2567	−70	× 115 / 611	−13.2
8	36,162	2493.2	− 2586	−92.8	× 126 / 611	−19.1
Sum, rounded to a whole point						−57

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,156	2450.4	− 2436	14.4	× 103 / 599	2.5
4	36,157	2448.6	− 2485	−36.4	× 94 / 599	−5.7
5	36,158	2461.9	− 2528	−66.1	× 77 / 599	−8.5
6	36,159	2527.3	− 2552	−24.7	× 112 / 599	−4.6
7	36,160	2500.8	− 2567	−66.2	× 99 / 599	−10.9
8	36,161	2529.2	− 2586	−56.8	× 114 / 599	−10.8
Sum, rounded to a whole point						−38

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,008	2466.3	− 2436	30.3	× 80 / 555	4.4
4	36,009	2479.0	− 2485	−6	× 100 / 555	−1.1
5	36,010	2442.5	− 2528	−85.5	× 93 / 555	−14.3
6	36,011	2516.7	− 2552	−35.3	× 76 / 555	−4.8
7	36,012	2544.0	− 2567	−23	× 110 / 555	−4.6
8	36,013	2511.3	− 2586	−74.7	× 96 / 555	−12.9
Sum, rounded to a whole point						−33

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,847	2450.4	− 2436	14.4	× 95 / 556	2.5
4	35,848	2487.2	− 2485	2.2	× 82 / 556	0.3
5	35,849	2488.5	− 2528	−39.5	× 104 / 556	−7.4
6	35,850	2504.4	− 2552	−47.6	× 88 / 556	−7.5
7	35,851	2519.2	− 2567	−47.8	× 79 / 556	−6.8
8	35,852	2547.3	− 2586	−38.7	× 108 / 556	−7.5
Sum, rounded to a whole point						−26

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,847	2458.7	− 2436	22.7	× 79 / 527	3.4
4	35,848	2472.9	− 2485	−12.1	× 96 / 527	−2.2
5	35,849	2491.5	− 2528	−36.5	× 82 / 527	−5.7
6	35,850	2512.4	− 2552	−39.6	× 99 / 527	−7.4
7	35,851	2506.6	− 2567	−60.4	× 99 / 527	−11.3
8	35,852	2513.2	− 2586	−72.8	× 72 / 527	−9.9
Sum, rounded to a whole point						−33

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −37, −26, −30, −26, −35, −57, −38, −33, −26, −33 → −34.1
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: 4 · 2017→2018: 4 · 2018→2019: 9 · 2019→2022: 22 · 2022→2023: 19 · 2023→2024: 5 · 2024→2025: 7 · 2025→2026: 7 → average 9.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 9.8 × 2.66 = 26.1. Upper limit −8, lower limit −60.2.

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.

Valle Lindo Elementary