El Segundo 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	23,597	2455.4	− 2432	23.4	× 231 / 1760	3.1
4	23,599	2498.9	− 2473	25.9	× 208 / 1760	3.1
5	23,601	2550.9	− 2502	48.9	× 233 / 1760	6.5
6	23,603	2560.5	− 2531	29.5	× 230 / 1760	3.9
7	23,605	2570.3	− 2552	18.3	× 254 / 1760	2.6
8	23,607	2586.1	− 2567	19.1	× 268 / 1760	2.9
11	23,609	2618.2	− 2583	35.2	× 336 / 1760	6.7
Sum, rounded to a whole point						29

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,110	2474.8	− 2432	42.8	× 210 / 1782	5
4	22,111	2516.0	− 2473	43	× 234 / 1782	5.6
5	22,114	2565.1	− 2502	63.1	× 211 / 1782	7.5
6	22,115	2570.3	− 2531	39.3	× 283 / 1782	6.2
7	22,117	2604.4	− 2552	52.4	× 281 / 1782	8.3
8	22,119	2602.0	− 2567	35	× 259 / 1782	5.1
11	22,122	2631.5	− 2583	48.5	× 304 / 1782	8.3
Sum, rounded to a whole point						46

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,523	2463.7	− 2432	31.7	× 232 / 1783	4.1
4	22,524	2511.3	− 2473	38.3	× 223 / 1783	4.8
5	22,526	2559.1	− 2502	57.1	× 246 / 1783	7.9
6	22,529	2584.4	− 2531	53.4	× 249 / 1783	7.5
7	22,530	2603.2	− 2552	51.2	× 273 / 1783	7.8
8	22,532	2616.9	− 2567	49.9	× 282 / 1783	7.9
11	22,535	2673.6	− 2583	90.6	× 278 / 1783	14.1
Sum, rounded to a whole point						54

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,512	2472.1	− 2432	40.1	× 194 / 1798	4.3
4	22,514	2532.5	− 2473	59.5	× 250 / 1798	8.3
5	22,516	2584.1	− 2502	82.1	× 235 / 1798	10.7
6	22,518	2565.3	− 2531	34.3	× 273 / 1798	5.2
7	22,520	2604.7	− 2552	52.7	× 261 / 1798	7.7
8	22,522	2605.7	− 2567	38.7	× 270 / 1798	5.8
11	22,524	2660.9	− 2583	77.9	× 315 / 1798	13.6
Sum, rounded to a whole point						56

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,691	2481.3	− 2432	49.3	× 210 / 1740	6
4	22,692	2534.8	− 2473	61.8	× 187 / 1740	6.6
5	22,693	2590.4	− 2502	88.4	× 249 / 1740	12.7
6	22,694	2579.8	− 2531	48.8	× 268 / 1740	7.5
7	22,695	2606.1	− 2552	54.1	× 271 / 1740	8.4
8	22,696	2623.1	− 2567	56.1	× 257 / 1740	8.3
11	22,697	2661.3	− 2583	78.3	× 298 / 1740	13.4
Sum, rounded to a whole point						63

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,136	2466.4	− 2432	34.4	× 185 / 1528	4.2
4	22,137	2510.3	− 2473	37.3	× 203 / 1528	5
5	22,138	2562.8	− 2502	60.8	× 215 / 1528	8.6
6	22,139	2573.5	− 2531	42.5	× 234 / 1528	6.5
7	22,140	2607.2	− 2552	55.2	× 256 / 1528	9.2
8	22,141	2627.7	− 2567	60.7	× 259 / 1528	10.3
11	22,142	2636.9	− 2583	53.9	× 176 / 1528	6.2
Sum, rounded to a whole point						50

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,656	2483.7	− 2432	51.7	× 186 / 1636	5.9
4	22,657	2521.6	− 2473	48.6	× 185 / 1636	5.5
5	22,658	2573.2	− 2502	71.2	× 212 / 1636	9.2
6	22,659	2573.2	− 2531	42.2	× 242 / 1636	6.2
7	22,660	2604.5	− 2552	52.5	× 246 / 1636	7.9
8	22,661	2630.0	− 2567	63	× 262 / 1636	10.1
11	22,662	2664.3	− 2583	81.3	× 303 / 1636	15.1
Sum, rounded to a whole point						60

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,623	2475.6	− 2432	43.6	× 227 / 1729	5.7
4	22,624	2528.8	− 2473	55.8	× 197 / 1729	6.4
5	22,625	2585.1	− 2502	83.1	× 192 / 1729	9.2
6	22,626	2576.4	− 2531	45.4	× 275 / 1729	7.2
7	22,627	2599.3	− 2552	47.3	× 264 / 1729	7.2
8	22,628	2628.1	− 2567	61.1	× 257 / 1729	9.1
11	22,629	2656.8	− 2583	73.8	× 317 / 1729	13.5
Sum, rounded to a whole point						58

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,477	2467.9	− 2432	35.9	× 223 / 1800	4.4
4	22,478	2522.6	− 2473	49.6	× 235 / 1800	6.5
5	22,479	2589.7	− 2502	87.7	× 205 / 1800	10
6	22,480	2576.1	− 2531	45.1	× 254 / 1800	6.4
7	22,481	2620.7	− 2552	68.7	× 279 / 1800	10.6
8	22,482	2616.7	− 2567	49.7	× 265 / 1800	7.3
11	22,483	2662.5	− 2583	79.5	× 339 / 1800	15
Sum, rounded to a whole point						60

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,388	2468.0	− 2432	36	× 190 / 1755	3.9
4	22,389	2520.1	− 2473	47.1	× 226 / 1755	6.1
5	22,390	2581.5	− 2502	79.5	× 244 / 1755	11.1
6	22,391	2592.1	− 2531	61.1	× 251 / 1755	8.7
7	22,392	2614.8	− 2552	62.8	× 257 / 1755	9.2
8	22,393	2643.7	− 2567	76.7	× 285 / 1755	12.5
11	22,394	2660.4	− 2583	77.4	× 302 / 1755	13.3
Sum, rounded to a whole point						65

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. 29, 46, 54, 56, 63, 50, 60, 58, 60, 65 → 54.1
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: 8 · 2017→2018: 2 · 2018→2019: 7 · 2019→2021: 13 · 2021→2022: 10 · 2022→2023: 2 · 2023→2024: 2 · 2024→2025: 5 → average 7.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 7.3 × 2.66 = 19.4. Upper limit 73.5, lower limit 34.7.

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.