Los Alamitos 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	53,358	2481.2	− 2432	49.2	× 706 / 5188	6.7
4	53,360	2521.4	− 2473	48.4	× 678 / 5188	6.3
5	53,361	2556.2	− 2502	54.2	× 725 / 5188	7.6
6	53,364	2571.3	− 2531	40.3	× 769 / 5188	6
7	53,365	2603.8	− 2552	51.8	× 750 / 5188	7.5
8	53,368	2616.9	− 2567	49.9	× 775 / 5188	7.5
11	53,369	2630.7	− 2583	47.7	× 785 / 5188	7.2
Sum, rounded to a whole point						49

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	49,570	2502.8	− 2432	70.8	× 660 / 5209	9
4	49,571	2541.3	− 2473	68.3	× 719 / 5209	9.4
5	49,573	2576.2	− 2502	74.2	× 694 / 5209	9.9
6	49,576	2586.8	− 2531	55.8	× 758 / 5209	8.1
7	49,577	2623.1	− 2552	71.1	× 813 / 5209	11.1
8	49,580	2637.7	− 2567	70.7	× 760 / 5209	10.3
11	49,582	2657.8	− 2583	74.8	× 805 / 5209	11.6
Sum, rounded to a whole point						69

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	50,933	2494.4	− 2432	62.4	× 696 / 5296	8.2
4	50,936	2541.2	− 2473	68.2	× 689 / 5296	8.9
5	50,937	2572.4	− 2502	70.4	× 745 / 5296	9.9
6	50,939	2594.9	− 2531	63.9	× 761 / 5296	9.2
7	50,941	2628.7	− 2552	76.7	× 773 / 5296	11.2
8	50,943	2642.1	− 2567	75.1	× 826 / 5296	11.7
11	50,946	2671.4	− 2583	88.4	× 806 / 5296	13.5
Sum, rounded to a whole point						73

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	50,970	2494.5	− 2432	62.5	× 630 / 5128	7.7
4	50,972	2546.6	− 2473	73.6	× 704 / 5128	10.1
5	50,974	2588.5	− 2502	86.5	× 702 / 5128	11.8
6	50,976	2600.7	− 2531	69.7	× 805 / 5128	10.9
7	50,978	2636.1	− 2552	84.1	× 770 / 5128	12.6
8	50,980	2639.7	− 2567	72.7	× 771 / 5128	10.9
11	50,982	2647.1	− 2583	64.1	× 746 / 5128	9.3
Sum, rounded to a whole point						73

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	51,172	2512.6	− 2432	80.6	× 662 / 5104	10.5
4	51,173	2542.2	− 2473	69.2	× 635 / 5104	8.6
5	51,174	2584.1	− 2502	82.1	× 714 / 5104	11.5
6	51,175	2609.2	− 2531	78.2	× 748 / 5104	11.5
7	51,176	2642.2	− 2552	90.2	× 834 / 5104	14.7
8	51,177	2644.4	− 2567	77.4	× 772 / 5104	11.7
11	51,178	2664.7	− 2583	81.7	× 739 / 5104	11.8
Sum, rounded to a whole point						80

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
11	49,929	2685.0	− 2583	102	× 726 / 726	102
Sum, rounded to a whole point						102

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	51,098	2505.1	− 2432	73.1	× 596 / 4675	9.3
4	51,099	2541.3	− 2473	68.3	× 674 / 4675	9.8
5	51,100	2584.1	− 2502	82.1	× 625 / 4675	11
6	51,101	2601.9	− 2531	70.9	× 683 / 4675	10.4
7	51,102	2628.0	− 2552	76	× 650 / 4675	10.6
8	51,103	2619.0	− 2567	52	× 736 / 4675	8.2
11	51,104	2677.8	− 2583	94.8	× 711 / 4675	14.4
Sum, rounded to a whole point						74

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	51,064	2499.2	− 2432	67.2	× 641 / 4646	9.3
4	51,065	2543.8	− 2473	70.8	× 596 / 4646	9.1
5	51,066	2577.0	− 2502	75	× 686 / 4646	11.1
6	51,067	2588.5	− 2531	57.5	× 638 / 4646	7.9
7	51,068	2622.6	− 2552	70.6	× 676 / 4646	10.3
8	51,069	2630.6	− 2567	63.6	× 655 / 4646	9
11	51,070	2665.9	− 2583	82.9	× 754 / 4646	13.5
Sum, rounded to a whole point						70

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	50,925	2498.3	− 2432	66.3	× 609 / 4654	8.7
4	50,926	2539.4	− 2473	66.4	× 653 / 4654	9.3
5	50,927	2582.6	− 2502	80.6	× 620 / 4654	10.7
6	50,928	2596.0	− 2531	65	× 713 / 4654	10
7	50,929	2620.6	− 2552	68.6	× 634 / 4654	9.3
8	50,930	2635.3	− 2567	68.3	× 677 / 4654	9.9
11	50,931	2667.5	− 2583	84.5	× 748 / 4654	13.6
Sum, rounded to a whole point						72

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	50,687	2485.2	− 2432	53.2	× 593 / 4537	7
4	50,688	2542.3	− 2473	69.3	× 609 / 4537	9.3
5	50,689	2578.8	− 2502	76.8	× 660 / 4537	11.2
6	50,690	2593.2	− 2531	62.2	× 645 / 4537	8.8
7	50,691	2614.9	− 2552	62.9	× 692 / 4537	9.6
8	50,692	2623.0	− 2567	56	× 635 / 4537	7.8
11	50,693	2642.9	− 2583	59.9	× 703 / 4537	9.3
Sum, rounded to a whole point						63

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	50,556	2493.7	− 2432	61.7	× 562 / 4438	7.8
4	50,557	2534.5	− 2473	61.5	× 599 / 4438	8.3
5	50,558	2581.0	− 2502	79	× 610 / 4438	10.9
6	50,559	2589.3	− 2531	58.3	× 674 / 4438	8.9
7	50,560	2612.8	− 2552	60.8	× 640 / 4438	8.8
8	50,561	2632.5	− 2567	65.5	× 688 / 4438	10.2
11	50,562	2666.1	− 2583	83.1	× 665 / 4438	12.5
Sum, rounded to a whole point						67

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. 49, 69, 73, 73, 80, 102, 74, 70, 72, 63, 67 → 72
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 20 · 2016→2017: 4 · 2017→2018: 0 · 2018→2019: 7 · 2019→2021: 22 · 2021→2022: 28 · 2022→2023: 4 · 2023→2024: 2 · 2024→2025: 9 · 2025→2026: 4 → average 10
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 10 × 2.66 = 26.6. Upper limit 98.6, lower limit 45.4.

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.

Los Alamitos Unified