Loleta Union 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	13,913	2369.9	− 2432	−62.1	× 13 / 55	−14.7
4	13,914	2341.1	− 2473	−131.9	× 14 / 55	−33.6
6	13,918	2413.0	− 2531	−118	× 13 / 55	−27.9
7	13,921	2424.4	− 2552	−127.6	× 15 / 55	−34.8
Sum, rounded to a whole point						−111

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	12,945	2388.2	− 2473	−84.8	× 16 / 32	−42.4
5	12,946	2375.8	− 2502	−126.2	× 16 / 32	−63.1
Sum, rounded to a whole point						−106

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,265	2355.0	− 2432	−77	× 12 / 38	−24.3
5	13,270	2433.6	− 2502	−68.4	× 14 / 38	−25.2
6	13,271	2372.3	− 2531	−158.7	× 12 / 38	−50.1
Sum, rounded to a whole point						−100

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,286	2366.5	− 2432	−65.5	× 12 / 37	−21.2
6	13,291	2415.5	− 2531	−115.5	× 14 / 37	−43.7
7	13,294	2456.2	− 2552	−95.8	× 11 / 37	−28.5
Sum, rounded to a whole point						−93

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	13,395	2347.8	− 2473	−125.2	× 12 / 52	−28.9
5	13,396	2376.8	− 2502	−125.2	× 12 / 52	−28.9
7	13,398	2425.4	− 2552	−126.6	× 13 / 52	−31.7
8	13,399	2446.2	− 2567	−120.8	× 15 / 52	−34.8
Sum, rounded to a whole point						−124

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	13,155	2353.0	− 2473	−120	× 12 / 37	−38.9
6	13,157	2352.4	− 2531	−178.6	× 14 / 37	−67.6
7	13,158	2384.2	− 2552	−167.8	× 11 / 37	−49.9
Sum, rounded to a whole point						−156

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	13,426	2292.2	− 2473	−180.8	× 11 / 27	−73.7
7	13,429	2360.1	− 2552	−191.9	× 16 / 27	−113.7
Sum, rounded to a whole point						−187

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	13,401	2430.7	− 2531	−100.3	× 11 / 26	−42.4
8	13,403	2419.5	− 2567	−147.5	× 15 / 26	−85.1
Sum, rounded to a whole point						−128

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
8	13,332	2463.8	− 2567	−103.2	× 11 / 11	−103.2
Sum, rounded to a whole point						−103

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −111, −106, −100, −93, −124, −156, −187, −128, −103 → −123.1
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 5 · 2016→2017: 6 · 2017→2018: 7 · 2018→2019: 31 · 2019→2021: 32 · 2021→2022: 31 · 2022→2023: 59 · 2023→2025: 25 → average 24.5
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 24.5 × 2.66 = 65.2. Upper limit −57.9, lower limit −188.3.

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, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.