Live Oak Unified: 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	98,576	2408.2	− 2436	−27.8	× 143 / 957	−4.2
4	98,579	2439.1	− 2485	−45.9	× 145 / 957	−7
5	98,580	2441.4	− 2528	−86.6	× 136 / 957	−12.3
6	98,583	2492.2	− 2552	−59.8	× 136 / 957	−8.5
7	98,584	2518.4	− 2567	−48.6	× 139 / 957	−7.1
8	98,587	2514.6	− 2586	−71.4	× 130 / 957	−9.7
11	98,588	2537.0	− 2628	−91	× 128 / 957	−12.2
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	91,307	2413.3	− 2436	−22.7	× 122 / 970	−2.9
4	91,309	2466.5	− 2485	−18.5	× 136 / 970	−2.6
5	91,311	2472.3	− 2528	−55.7	× 155 / 970	−8.9
6	91,312	2489.5	− 2552	−62.5	× 130 / 970	−8.4
7	91,315	2536.5	− 2567	−30.5	× 134 / 970	−4.2
8	91,317	2551.7	− 2586	−34.3	× 141 / 970	−5
11	91,318	2548.6	− 2628	−79.4	× 152 / 970	−12.4
Sum, rounded to a whole point						−44

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	94,069	2422.5	− 2436	−13.5	× 132 / 940	−1.9
4	94,070	2467.6	− 2485	−17.4	× 122 / 940	−2.3
5	94,072	2475.4	− 2528	−52.6	× 137 / 940	−7.7
6	94,075	2492.4	− 2552	−59.6	× 152 / 940	−9.6
7	94,076	2525.4	− 2567	−41.6	× 132 / 940	−5.8
8	94,078	2534.7	− 2586	−51.3	× 131 / 940	−7.1
11	94,080	2556.6	− 2628	−71.4	× 134 / 940	−10.2
Sum, rounded to a whole point						−45

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	94,282	2451.4	− 2436	15.4	× 134 / 993	2.1
4	94,283	2474.6	− 2485	−10.4	× 143 / 993	−1.5
5	94,286	2485.6	− 2528	−42.4	× 138 / 993	−5.9
6	94,287	2511.2	− 2552	−40.8	× 146 / 993	−6
7	94,290	2513.5	− 2567	−53.5	× 152 / 993	−8.2
8	94,291	2514.0	− 2586	−72	× 136 / 993	−9.9
11	94,294	2556.3	− 2628	−71.7	× 144 / 993	−10.4
Sum, rounded to a whole point						−40

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	94,917	2448.5	− 2436	12.5	× 131 / 994	1.6
4	94,918	2502.1	− 2485	17.1	× 134 / 994	2.3
5	94,919	2487.8	− 2528	−40.2	× 150 / 994	−6.1
6	94,920	2521.5	− 2552	−30.5	× 139 / 994	−4.3
7	94,921	2535.1	− 2567	−31.9	× 146 / 994	−4.7
8	94,922	2532.0	− 2586	−54	× 145 / 994	−7.9
11	94,923	2556.0	− 2628	−72	× 149 / 994	−10.8
Sum, rounded to a whole point						−30

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
11	92,902	2520.5	− 2628	−107.5	× 139 / 139	−107.5
Sum, rounded to a whole point						−108

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	95,155	2425.6	− 2436	−10.4	× 115 / 990	−1.2
4	95,156	2453.1	− 2485	−31.9	× 134 / 990	−4.3
5	95,157	2479.5	− 2528	−48.5	× 147 / 990	−7.2
6	95,158	2497.8	− 2552	−54.2	× 132 / 990	−7.2
7	95,159	2490.3	− 2567	−76.7	× 142 / 990	−11
8	95,160	2491.1	− 2586	−94.9	× 153 / 990	−14.7
11	95,161	2524.9	− 2628	−103.1	× 167 / 990	−17.4
Sum, rounded to a whole point						−63

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	95,055	2438.2	− 2436	2.2	× 135 / 990	0.3
4	95,056	2490.1	− 2485	5.1	× 128 / 990	0.7
5	95,057	2467.7	− 2528	−60.3	× 129 / 990	−7.9
6	95,058	2495.6	− 2552	−56.4	× 150 / 990	−8.5
7	95,059	2503.1	− 2567	−63.9	× 143 / 990	−9.2
8	95,060	2512.1	− 2586	−73.9	× 139 / 990	−10.4
11	95,061	2520.4	− 2628	−107.6	× 166 / 990	−18
Sum, rounded to a whole point						−53

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	94,920	2441.9	− 2436	5.9	× 141 / 1036	0.8
4	94,921	2510.3	− 2485	25.3	× 148 / 1036	3.6
5	94,922	2496.1	− 2528	−31.9	× 131 / 1036	−4
6	94,923	2495.4	− 2552	−56.6	× 146 / 1036	−8
7	94,924	2505.1	− 2567	−61.9	× 157 / 1036	−9.4
8	94,925	2519.3	− 2586	−66.7	× 143 / 1036	−9.2
11	94,926	2521.1	− 2628	−106.9	× 170 / 1036	−17.5
Sum, rounded to a whole point						−44

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	94,654	2430.9	− 2436	−5.1	× 143 / 1043	−0.7
4	94,655	2487.6	− 2485	2.6	× 145 / 1043	0.4
5	94,656	2515.5	− 2528	−12.5	× 143 / 1043	−1.7
6	94,657	2512.6	− 2552	−39.4	× 137 / 1043	−5.2
7	94,658	2516.8	− 2567	−50.2	× 147 / 1043	−7.1
8	94,659	2523.8	− 2586	−62.2	× 162 / 1043	−9.7
11	94,660	2514.6	− 2628	−113.4	× 166 / 1043	−18
Sum, rounded to a whole point						−42

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	94,258	2448.6	− 2436	12.6	× 158 / 1028	1.9
4	94,259	2476.2	− 2485	−8.8	× 148 / 1028	−1.3
5	94,260	2493.0	− 2528	−35	× 143 / 1028	−4.9
6	94,261	2527.4	− 2552	−24.6	× 143 / 1028	−3.4
7	94,262	2535.5	− 2567	−31.5	× 135 / 1028	−4.1
8	94,263	2538.1	− 2586	−47.9	× 139 / 1028	−6.5
11	94,264	2522.6	− 2628	−105.4	× 162 / 1028	−16.6
Sum, rounded to a whole point						−35

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −61, −44, −45, −40, −30, −108, −63, −53, −44, −42, −35 → −51.4
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 17 · 2016→2017: 1 · 2017→2018: 5 · 2018→2019: 10 · 2019→2021: 78 · 2021→2022: 45 · 2022→2023: 10 · 2023→2024: 9 · 2024→2025: 2 · 2025→2026: 7 → average 18.4
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 18.4 × 2.66 = 48.9. Upper limit −2.5, lower limit −100.3.

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.

Live Oak Unified