Live Oak 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	71,754	2405.5	− 2432	−26.5	× 110 / 433	−6.7
4	71,757	2444.5	− 2473	−28.5	× 111 / 433	−7.3
5	71,758	2485.9	− 2502	−16.1	× 108 / 433	−4
6	71,761	2503.5	− 2531	−27.5	× 104 / 433	−6.6
Sum, rounded to a whole point						−25

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	66,560	2389.8	− 2432	−42.2	× 83 / 382	−9.2
4	66,562	2425.5	− 2473	−47.5	× 100 / 382	−12.4
5	66,564	2491.7	− 2502	−10.3	× 93 / 382	−2.5
6	66,566	2527.8	− 2531	−3.2	× 106 / 382	−0.9
Sum, rounded to a whole point						−25

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	68,394	2418.7	− 2432	−13.3	× 70 / 336	−2.8
4	68,395	2432.7	− 2473	−40.3	× 75 / 336	−9
5	68,397	2489.4	− 2502	−12.6	× 97 / 336	−3.6
6	68,399	2503.2	− 2531	−27.8	× 94 / 336	−7.8
Sum, rounded to a whole point						−23

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	68,541	2423.0	− 2432	−9	× 78 / 339	−2.1
4	68,543	2475.2	− 2473	2.2	× 78 / 339	0.5
5	68,546	2456.1	− 2502	−45.9	× 82 / 339	−11.1
6	68,547	2508.7	− 2531	−22.3	× 101 / 339	−6.6
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	69,052	2431.5	− 2432	−0.5	× 67 / 317	−0.1
4	69,053	2468.7	− 2473	−4.3	× 86 / 317	−1.2
5	69,054	2486.9	− 2502	−15.1	× 75 / 317	−3.6
6	69,055	2479.8	− 2531	−51.2	× 89 / 317	−14.4
Sum, rounded to a whole point						−19

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	69,110	2406.7	− 2432	−25.3	× 87 / 325	−6.8
4	69,111	2456.8	− 2473	−16.2	× 79 / 325	−3.9
5	69,112	2476.8	− 2502	−25.2	× 86 / 325	−6.7
6	69,113	2522.6	− 2531	−8.4	× 73 / 325	−1.9
Sum, rounded to a whole point						−19

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	69,140	2423.7	− 2432	−8.3	× 78 / 354	−1.8
4	69,141	2437.3	− 2473	−35.7	× 102 / 354	−10.3
5	69,142	2481.3	− 2502	−20.7	× 82 / 354	−4.8
6	69,143	2524.6	− 2531	−6.4	× 92 / 354	−1.7
Sum, rounded to a whole point						−19

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	69,132	2433.5	− 2432	1.5	× 97 / 376	0.4
4	69,133	2460.1	− 2473	−12.9	× 82 / 376	−2.8
5	69,134	2514.9	− 2502	12.9	× 111 / 376	3.8
6	69,135	2541.2	− 2531	10.2	× 86 / 376	2.3
Sum, rounded to a whole point						4

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	68,890	2453.9	− 2432	21.9	× 100 / 398	5.5
4	68,891	2461.9	− 2473	−11.1	× 100 / 398	−2.8
5	68,892	2506.8	− 2502	4.8	× 86 / 398	1
6	68,893	2559.6	− 2531	28.6	× 112 / 398	8
Sum, rounded to a whole point						12

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −25, −25, −23, −19, −19, −19, −19, 4, 12 → −14.8
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 0 · 2016→2017: 2 · 2017→2018: 4 · 2018→2019: 0 · 2019→2022: 0 · 2022→2023: 0 · 2023→2024: 23 · 2024→2025: 8 → average 4.6
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 4.6 × 2.66 = 12.2. Upper limit −2.6, lower limit −27.

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.