Le Grand Elementary: english

The shaded band is this school'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	44,114	2364.5	− 2432	−67.5	× 30 / 244	−8.3
4	44,115	2377.3	− 2473	−95.7	× 44 / 244	−17.3
5	44,118	2460.6	− 2502	−41.4	× 46 / 244	−7.8
6	44,119	2453.3	− 2531	−77.7	× 44 / 244	−14
7	44,122	2515.2	− 2552	−36.8	× 46 / 244	−6.9
8	44,123	2545.3	− 2567	−21.7	× 34 / 244	−3
Sum, rounded to a whole point						−57

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	40,810	2393.7	− 2432	−38.3	× 55 / 277	−7.6
4	40,811	2402.8	− 2473	−70.2	× 32 / 277	−8.1
5	40,813	2413.0	− 2502	−89	× 45 / 277	−14.5
6	40,816	2497.4	− 2531	−33.6	× 48 / 277	−5.8
7	40,817	2490.7	− 2552	−61.3	× 46 / 277	−10.2
8	40,820	2539.1	− 2567	−27.9	× 51 / 277	−5.1
Sum, rounded to a whole point						−51

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	41,812	2348.1	− 2432	−83.9	× 40 / 265	−12.7
4	41,815	2411.2	− 2473	−61.8	× 50 / 265	−11.7
5	41,817	2436.2	− 2502	−65.8	× 36 / 265	−8.9
6	41,818	2420.6	− 2531	−110.4	× 42 / 265	−17.5
7	41,821	2547.2	− 2552	−4.8	× 50 / 265	−0.9
8	41,822	2516.0	− 2567	−51	× 47 / 265	−9
Sum, rounded to a whole point						−61

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	41,845	2408.3	− 2432	−23.7	× 26 / 237	−2.6
4	41,848	2399.9	− 2473	−73.1	× 39 / 237	−12
5	41,849	2468.8	− 2502	−33.2	× 49 / 237	−6.9
6	41,852	2477.6	− 2531	−53.4	× 37 / 237	−8.3
7	41,854	2524.1	− 2552	−27.9	× 39 / 237	−4.6
8	41,856	2557.2	− 2567	−9.8	× 47 / 237	−1.9
Sum, rounded to a whole point						−36

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	41,987	2379.8	− 2432	−52.2	× 43 / 236	−9.5
4	41,988	2410.0	− 2473	−63	× 26 / 236	−6.9
5	41,989	2453.1	− 2502	−48.9	× 38 / 236	−7.9
6	41,990	2495.0	− 2531	−36	× 47 / 236	−7.2
7	41,991	2527.9	− 2552	−24.1	× 41 / 236	−4.2
8	41,992	2536.0	− 2567	−31	× 41 / 236	−5.4
Sum, rounded to a whole point						−41

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	41,736	2401.1	− 2432	−30.9	× 35 / 236	−4.6
4	41,737	2383.3	− 2473	−89.7	× 45 / 236	−17.1
5	41,738	2461.9	− 2502	−40.1	× 40 / 236	−6.8
6	41,739	2481.9	− 2531	−49.1	× 44 / 236	−9.2
7	41,740	2501.3	− 2552	−50.7	× 31 / 236	−6.7
8	41,741	2537.1	− 2567	−29.9	× 41 / 236	−5.2
Sum, rounded to a whole point						−49

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	41,767	2384.3	− 2432	−47.7	× 33 / 222	−7.1
4	41,768	2429.0	− 2473	−44	× 34 / 222	−6.7
5	41,769	2459.3	− 2502	−42.7	× 42 / 222	−8.1
6	41,770	2470.3	− 2531	−60.7	× 40 / 222	−10.9
7	41,771	2556.3	− 2552	4.3	× 44 / 222	0.9
8	41,772	2541.8	− 2567	−25.2	× 29 / 222	−3.3
Sum, rounded to a whole point						−35

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	41,598	2395.6	− 2432	−36.4	× 32 / 221	−5.3
4	41,599	2421.5	− 2473	−51.5	× 33 / 221	−7.7
5	41,600	2483.2	− 2502	−18.8	× 36 / 221	−3.1
6	41,601	2456.5	− 2531	−74.5	× 40 / 221	−13.5
7	41,602	2515.1	− 2552	−36.9	× 38 / 221	−6.3
8	41,603	2566.7	− 2567	−0.3	× 42 / 221	−0.1
Sum, rounded to a whole point						−36

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	41,361	2409.2	− 2432	−22.8	× 36 / 231	−3.6
4	41,362	2442.0	− 2473	−31	× 40 / 231	−5.4
5	41,363	2484.9	− 2502	−17.1	× 36 / 231	−2.7
6	41,364	2516.8	− 2531	−14.2	× 37 / 231	−2.3
7	41,365	2534.9	− 2552	−17.1	× 42 / 231	−3.1
8	41,366	2543.6	− 2567	−23.4	× 40 / 231	−4.1
Sum, rounded to a whole point						−21

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −57, −51, −61, −36, −41, −49, −35, −36, −21 → −43
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 6 · 2016→2017: 10 · 2017→2018: 25 · 2018→2019: 5 · 2019→2022: 8 · 2022→2023: 14 · 2023→2024: 1 · 2024→2025: 15 → average 10.5
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 10.5 × 2.66 = 27.9. Upper limit −15.1, lower limit −70.9.

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. From 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.