Norris 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	17,681	2431.2	− 2432	−0.8	× 460 / 2703	−0.1
4	17,683	2471.6	− 2473	−1.4	× 451 / 2703	−0.2
5	17,685	2518.8	− 2502	16.8	× 427 / 2703	2.7
6	17,687	2541.5	− 2531	10.5	× 434 / 2703	1.7
7	17,689	2559.2	− 2552	7.2	× 471 / 2703	1.3
8	17,691	2579.3	− 2567	12.3	× 460 / 2703	2.1
Sum, rounded to a whole point						7

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	16,690	2435.7	− 2432	3.7	× 454 / 2754	0.6
4	16,692	2476.6	− 2473	3.6	× 476 / 2754	0.6
5	16,693	2519.1	− 2502	17.1	× 465 / 2754	2.9
6	16,695	2556.8	− 2531	25.8	× 443 / 2754	4.2
7	16,697	2569.0	− 2552	17	× 452 / 2754	2.8
8	16,700	2582.1	− 2567	15.1	× 464 / 2754	2.5
Sum, rounded to a whole point						14

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,011	2438.0	− 2432	6	× 434 / 2770	0.9
4	17,013	2475.3	− 2473	2.3	× 466 / 2770	0.4
5	17,016	2507.1	− 2502	5.1	× 485 / 2770	0.9
6	17,018	2553.0	− 2531	22	× 474 / 2770	3.8
7	17,019	2580.6	− 2552	28.6	× 466 / 2770	4.8
8	17,022	2580.0	− 2567	13	× 445 / 2770	2.1
Sum, rounded to a whole point						13

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,030	2450.4	− 2432	18.4	× 402 / 2768	2.7
4	17,033	2485.7	− 2473	12.7	× 447 / 2768	2.1
5	17,034	2509.6	− 2502	7.6	× 503 / 2768	1.4
6	17,037	2544.3	− 2531	13.3	× 500 / 2768	2.4
7	17,038	2568.8	− 2552	16.8	× 459 / 2768	2.8
8	17,041	2597.7	− 2567	30.7	× 457 / 2768	5.1
Sum, rounded to a whole point						16

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,176	2454.8	− 2432	22.8	× 431 / 2802	3.5
4	17,177	2485.2	− 2473	12.2	× 412 / 2802	1.8
5	17,178	2517.5	− 2502	15.5	× 455 / 2802	2.5
6	17,179	2541.0	− 2531	10	× 520 / 2802	1.9
7	17,180	2553.1	− 2552	1.1	× 512 / 2802	0.2
8	17,181	2582.2	− 2567	15.2	× 472 / 2802	2.6
Sum, rounded to a whole point						12

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,226	2423.5	− 2432	−8.5	× 429 / 2648	−1.4
4	17,227	2487.0	− 2473	14	× 451 / 2648	2.4
5	17,228	2521.3	− 2502	19.3	× 435 / 2648	3.2
6	17,229	2543.6	− 2531	12.6	× 433 / 2648	2.1
7	17,230	2554.4	− 2552	2.4	× 435 / 2648	0.4
8	17,231	2561.1	− 2567	−5.9	× 465 / 2648	−1
Sum, rounded to a whole point						6

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,162	2424.9	− 2432	−7.1	× 415 / 2659	−1.1
4	17,163	2468.5	− 2473	−4.5	× 447 / 2659	−0.8
5	17,164	2520.2	− 2502	18.2	× 460 / 2659	3.1
6	17,165	2544.7	− 2531	13.7	× 452 / 2659	2.3
7	17,166	2553.5	− 2552	1.5	× 440 / 2659	0.2
8	17,167	2547.0	− 2567	−20	× 445 / 2659	−3.3
Sum, rounded to a whole point						1

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,119	2442.0	− 2432	10	× 387 / 2660	1.5
4	17,120	2477.3	− 2473	4.3	× 447 / 2660	0.7
5	17,121	2522.4	− 2502	20.4	× 448 / 2660	3.4
6	17,122	2544.7	− 2531	13.7	× 476 / 2660	2.5
7	17,123	2571.3	− 2552	19.3	× 471 / 2660	3.4
8	17,124	2553.0	− 2567	−14	× 431 / 2660	−2.3
Sum, rounded to a whole point						9

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,108	2441.1	− 2432	9.1	× 411 / 2711	1.4
4	17,109	2475.1	− 2473	2.1	× 416 / 2711	0.3
5	17,110	2520.4	− 2502	18.4	× 457 / 2711	3.1
6	17,111	2546.9	− 2531	15.9	× 465 / 2711	2.7
7	17,112	2559.5	− 2552	7.5	× 483 / 2711	1.3
8	17,113	2564.2	− 2567	−2.8	× 479 / 2711	−0.5
Sum, rounded to a whole point						8

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. 7, 14, 13, 16, 12, 6, 1, 9, 8 → 9.6
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 7 · 2016→2017: 1 · 2017→2018: 3 · 2018→2019: 4 · 2019→2022: 6 · 2022→2023: 5 · 2023→2024: 8 · 2024→2025: 1 → average 4.4
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 4.4 × 2.66 = 11.7. Upper limit 21.3, lower limit −2.1.

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.