San Luis Coastal Unified: 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	81,879	2426.1	− 2432	−5.9	× 554 / 3808	−0.9
4	81,880	2478.7	− 2473	5.7	× 594 / 3808	0.9
5	81,883	2528.9	− 2502	26.9	× 571 / 3808	4
6	81,884	2550.8	− 2531	19.8	× 576 / 3808	3
7	81,887	2565.8	− 2552	13.8	× 512 / 3808	1.9
8	81,888	2590.6	− 2567	23.6	× 524 / 3808	3.2
11	81,891	2622.2	− 2583	39.2	× 477 / 3808	4.9
Sum, rounded to a whole point						17

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	75,929	2452.9	− 2432	20.9	× 531 / 3843	2.9
4	75,931	2490.8	− 2473	17.8	× 554 / 3843	2.6
5	75,932	2532.2	− 2502	30.2	× 600 / 3843	4.7
6	75,935	2571.5	− 2531	40.5	× 578 / 3843	6.1
7	75,936	2593.4	− 2552	41.4	× 585 / 3843	6.3
8	75,939	2601.7	− 2567	34.7	× 501 / 3843	4.5
11	75,940	2614.7	− 2583	31.7	× 494 / 3843	4.1
Sum, rounded to a whole point						31

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,962	2442.1	− 2432	10.1	× 552 / 3951	1.4
4	77,964	2500.3	− 2473	27.3	× 551 / 3951	3.8
5	77,965	2535.3	− 2502	33.3	× 558 / 3951	4.7
6	77,967	2572.3	− 2531	41.3	× 623 / 3951	6.5
7	77,970	2593.3	− 2552	41.3	× 568 / 3951	5.9
8	77,972	2604.2	− 2567	37.2	× 565 / 3951	5.3
11	77,974	2634.1	− 2583	51.1	× 534 / 3951	6.9
Sum, rounded to a whole point						35

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	78,116	2457.6	− 2432	25.6	× 536 / 3912	3.5
4	78,119	2498.0	− 2473	25	× 549 / 3912	3.5
5	78,120	2542.9	− 2502	40.9	× 550 / 3912	5.8
6	78,123	2574.0	− 2531	43	× 556 / 3912	6.1
7	78,124	2595.6	− 2552	43.6	× 622 / 3912	6.9
8	78,127	2606.1	− 2567	39.1	× 565 / 3912	5.6
11	78,128	2626.2	− 2583	43.2	× 534 / 3912	5.9
Sum, rounded to a whole point						37

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	78,642	2458.7	− 2432	26.7	× 552 / 3937	3.7
4	78,643	2507.3	− 2473	34.3	× 551 / 3937	4.8
5	78,644	2539.9	− 2502	37.9	× 551 / 3937	5.3
6	78,645	2583.9	− 2531	52.9	× 571 / 3937	7.7
7	78,646	2607.4	− 2552	55.4	× 588 / 3937	8.3
8	78,647	2621.7	− 2567	54.7	× 604 / 3937	8.4
11	78,648	2647.8	− 2583	64.8	× 520 / 3937	8.6
Sum, rounded to a whole point						47

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,207	2436.1	− 2432	4.1	× 413 / 3298	0.5
4	77,208	2490.3	− 2473	17.3	× 552 / 3298	2.9
5	77,209	2515.5	− 2502	13.5	× 525 / 3298	2.1
6	77,210	2543.1	− 2531	12.1	× 518 / 3298	1.9
7	77,211	2580.2	− 2552	28.2	× 497 / 3298	4.2
8	77,212	2602.3	− 2567	35.3	× 492 / 3298	5.3
11	77,213	2613.1	− 2583	30.1	× 301 / 3298	2.7
Sum, rounded to a whole point						20

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	78,910	2462.6	− 2432	30.6	× 478 / 3740	3.9
4	78,911	2488.2	− 2473	15.2	× 470 / 3740	1.9
5	78,912	2522.7	− 2502	20.7	× 572 / 3740	3.2
6	78,913	2559.1	− 2531	28.1	× 535 / 3740	4
7	78,914	2594.6	− 2552	42.6	× 544 / 3740	6.2
8	78,915	2599.9	− 2567	32.9	× 547 / 3740	4.8
11	78,916	2642.5	− 2583	59.5	× 594 / 3740	9.5
Sum, rounded to a whole point						33

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	78,896	2454.8	− 2432	22.8	× 509 / 3743	3.1
4	78,897	2502.4	− 2473	29.4	× 485 / 3743	3.8
5	78,898	2525.0	− 2502	23	× 489 / 3743	3
6	78,899	2559.5	− 2531	28.5	× 592 / 3743	4.5
7	78,900	2589.4	− 2552	37.4	× 563 / 3743	5.6
8	78,901	2598.6	− 2567	31.6	× 533 / 3743	4.5
11	78,902	2645.5	− 2583	62.5	× 572 / 3743	9.6
Sum, rounded to a whole point						34

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	78,922	2462.0	− 2432	30	× 544 / 3785	4.3
4	78,923	2507.7	− 2473	34.7	× 522 / 3785	4.8
5	78,924	2544.3	− 2502	42.3	× 495 / 3785	5.5
6	78,925	2558.7	− 2531	27.7	× 507 / 3785	3.7
7	78,926	2589.7	− 2552	37.7	× 593 / 3785	5.9
8	78,927	2610.5	− 2567	43.5	× 554 / 3785	6.4
11	78,928	2630.2	− 2583	47.2	× 570 / 3785	7.1
Sum, rounded to a whole point						38

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	78,600	2454.3	− 2432	22.3	× 502 / 3837	2.9
4	78,601	2508.1	− 2473	35.1	× 562 / 3837	5.1
5	78,602	2540.1	− 2502	38.1	× 548 / 3837	5.4
6	78,603	2576.5	− 2531	45.5	× 518 / 3837	6.1
7	78,604	2590.3	− 2552	38.3	× 515 / 3837	5.1
8	78,605	2617.1	− 2567	50.1	× 589 / 3837	7.7
11	78,606	2624.3	− 2583	41.3	× 603 / 3837	6.5
Sum, rounded to a whole point						39

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. 17, 31, 35, 37, 47, 20, 33, 34, 38, 39 → 33.1
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 14 · 2016→2017: 4 · 2017→2018: 2 · 2018→2019: 10 · 2019→2021: 27 · 2021→2022: 13 · 2022→2023: 1 · 2023→2024: 4 · 2024→2025: 1 → average 8.4
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 8.4 × 2.66 = 22.3. Upper limit 55.4, lower limit 10.8.

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.