Granada Elementary: math

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	40,704	2421.0	− 2436	−15	× 62 / 341	−2.7
4	40,705	2439.6	− 2485	−45.4	× 56 / 341	−7.5
5	40,707	2468.1	− 2528	−59.9	× 55 / 341	−9.7
6	40,710	2484.3	− 2552	−67.7	× 47 / 341	−9.3
7	40,711	2522.6	− 2567	−44.4	× 57 / 341	−7.4
8	40,714	2590.0	− 2586	4	× 64 / 341	0.8
Sum, rounded to a whole point						−36

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	37,655	2403.5	− 2436	−32.5	× 58 / 328	−5.7
4	37,657	2446.5	− 2485	−38.5	× 61 / 328	−7.2
5	37,659	2489.8	− 2528	−38.2	× 56 / 328	−6.5
6	37,661	2495.7	− 2552	−56.3	× 55 / 328	−9.4
7	37,662	2509.8	− 2567	−57.2	× 44 / 328	−7.7
8	37,664	2526.5	− 2586	−59.5	× 54 / 328	−9.8
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	38,510	2434.1	− 2436	−1.9	× 44 / 307	−0.3
4	38,513	2445.4	− 2485	−39.6	× 54 / 307	−7
5	38,515	2488.4	− 2528	−39.6	× 55 / 307	−7.1
6	38,517	2477.7	− 2552	−74.3	× 58 / 307	−14
7	38,519	2524.8	− 2567	−42.2	× 53 / 307	−7.3
8	38,521	2530.6	− 2586	−55.4	× 43 / 307	−7.8
Sum, rounded to a whole point						−43

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,485	2429.9	− 2436	−6.1	× 41 / 293	−0.9
4	38,488	2445.1	− 2485	−39.9	× 46 / 293	−6.3
5	38,489	2487.6	− 2528	−40.4	× 52 / 293	−7.2
6	38,492	2494.7	− 2552	−57.3	× 54 / 293	−10.6
7	38,493	2479.5	− 2567	−87.5	× 58 / 293	−17.3
8	38,496	2548.4	− 2586	−37.6	× 42 / 293	−5.4
Sum, rounded to a whole point						−48

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,686	2407.4	− 2436	−28.6	× 50 / 313	−4.6
4	38,687	2474.0	− 2485	−11	× 41 / 313	−1.4
5	38,688	2479.3	− 2528	−48.7	× 54 / 313	−8.4
6	38,689	2499.7	− 2552	−52.3	× 57 / 313	−9.5
7	38,690	2559.3	− 2567	−7.7	× 56 / 313	−1.4
8	38,691	2494.1	− 2586	−91.9	× 55 / 313	−16.1
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	38,503	2389.6	− 2436	−46.4	× 44 / 266	−7.7
4	38,504	2415.6	− 2485	−69.4	× 49 / 266	−12.8
5	38,505	2448.0	− 2528	−80	× 39 / 266	−11.7
6	38,506	2468.1	− 2552	−83.9	× 44 / 266	−13.9
7	38,507	2497.8	− 2567	−69.2	× 38 / 266	−9.9
8	38,508	2488.5	− 2586	−97.5	× 52 / 266	−19.1
Sum, rounded to a whole point						−75

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,562	2389.6	− 2436	−46.4	× 39 / 255	−7.1
4	38,563	2423.9	− 2485	−61.1	× 43 / 255	−10.3
5	38,564	2463.1	− 2528	−64.9	× 54 / 255	−13.7
6	38,565	2436.9	− 2552	−115.1	× 35 / 255	−15.8
7	38,566	2518.5	− 2567	−48.5	× 49 / 255	−9.3
8	38,567	2483.8	− 2586	−102.2	× 35 / 255	−14
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	38,396	2371.8	− 2436	−64.2	× 32 / 238	−8.6
4	38,397	2434.7	− 2485	−50.3	× 37 / 238	−7.8
5	38,398	2463.2	− 2528	−64.8	× 37 / 238	−10.1
6	38,399	2491.4	− 2552	−60.6	× 57 / 238	−14.5
7	38,400	2497.8	− 2567	−69.2	× 29 / 238	−8.4
8	38,401	2516.1	− 2586	−69.9	× 46 / 238	−13.5
Sum, rounded to a whole point						−63

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,175	2390.2	− 2436	−45.8	× 57 / 254	−10.3
4	38,176	2380.1	− 2485	−104.9	× 31 / 254	−12.8
5	38,177	2431.8	− 2528	−96.2	× 34 / 254	−12.9
6	38,178	2489.2	− 2552	−62.8	× 40 / 254	−9.9
7	38,179	2522.4	− 2567	−44.6	× 58 / 254	−10.2
8	38,180	2481.1	− 2586	−104.9	× 34 / 254	−14
Sum, rounded to a whole point						−70

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −36, −46, −43, −48, −41, −75, −70, −63, −70 → −54.7
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 10 · 2016→2017: 3 · 2017→2018: 5 · 2018→2019: 7 · 2019→2022: 34 · 2022→2023: 5 · 2023→2024: 7 · 2024→2025: 7 → average 9.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 9.8 × 2.66 = 26.1. Upper limit −28.6, lower limit −80.8.

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