Grant 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	7,710	2332.6	− 2432	−99.4	× 86 / 275	−31.1
4	7,713	2384.0	− 2473	−89	× 69 / 275	−22.3
5	7,714	2411.5	− 2502	−90.5	× 77 / 275	−25.3
6	7,717	2445.3	− 2531	−85.7	× 43 / 275	−13.4
Sum, rounded to a whole point						−92

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	6,894	2355.5	− 2432	−76.5	× 80 / 269	−22.8
4	6,897	2389.1	− 2473	−83.9	× 63 / 269	−19.6
5	6,898	2405.6	− 2502	−96.4	× 59 / 269	−21.1
6	6,900	2440.4	− 2531	−90.6	× 67 / 269	−22.6
Sum, rounded to a whole point						−86

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,107	2365.9	− 2432	−66.1	× 63 / 249	−16.7
4	7,109	2382.1	− 2473	−90.9	× 78 / 249	−28.5
5	7,110	2418.1	− 2502	−83.9	× 59 / 249	−19.9
6	7,112	2432.5	− 2531	−98.5	× 49 / 249	−19.4
Sum, rounded to a whole point						−84

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,125	2350.7	− 2432	−81.3	× 70 / 263	−21.6
4	7,126	2381.4	− 2473	−91.6	× 70 / 263	−24.4
5	7,129	2433.5	− 2502	−68.5	× 68 / 263	−17.7
6	7,130	2424.3	− 2531	−106.7	× 55 / 263	−22.3
Sum, rounded to a whole point						−86

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,166	2358.1	− 2432	−73.9	× 61 / 255	−17.7
4	7,167	2379.0	− 2473	−94	× 64 / 255	−23.6
5	7,168	2435.9	− 2502	−66.1	× 64 / 255	−16.6
6	7,169	2466.2	− 2531	−64.8	× 66 / 255	−16.8
Sum, rounded to a whole point						−75

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,107	2319.4	− 2432	−112.6	× 70 / 263	−30
4	7,108	2338.2	− 2473	−134.8	× 70 / 263	−35.9
5	7,109	2373.7	− 2502	−128.3	× 62 / 263	−30.2
6	7,110	2420.9	− 2531	−110.1	× 61 / 263	−25.5
Sum, rounded to a whole point						−122

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,095	2295.0	− 2432	−137	× 81 / 281	−39.5
4	7,096	2353.4	− 2473	−119.6	× 69 / 281	−29.4
5	7,097	2361.7	− 2502	−140.3	× 66 / 281	−33
6	7,098	2435.4	− 2531	−95.6	× 65 / 281	−22.1
Sum, rounded to a whole point						−124

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,042	2292.0	− 2432	−140	× 77 / 298	−36.2
4	7,043	2317.9	− 2473	−155.1	× 85 / 298	−44.2
5	7,044	2379.2	− 2502	−122.8	× 66 / 298	−27.2
6	7,045	2404.5	− 2531	−126.5	× 70 / 298	−29.7
Sum, rounded to a whole point						−137

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,002	2299.8	− 2432	−132.2	× 83 / 285	−38.5
4	7,003	2318.0	− 2473	−155	× 80 / 285	−43.5
5	7,004	2359.2	− 2502	−142.8	× 75 / 285	−37.6
6	7,005	2408.6	− 2531	−122.4	× 47 / 285	−20.2
Sum, rounded to a whole point						−140

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −92, −86, −84, −86, −75, −122, −124, −137, −140 → −105.1
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: 2 · 2017→2018: 2 · 2018→2019: 11 · 2019→2022: 47 · 2022→2023: 2 · 2023→2024: 13 · 2024→2025: 3 → average 10.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 10.8 × 2.66 = 28.7. Upper limit −76.4, lower limit −133.8.

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.