Fairgrove 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	81,789	2372.2	− 2432	−59.8	× 78 / 259	−18
4	81,790	2415.8	− 2473	−57.2	× 59 / 259	−13
5	81,793	2495.1	− 2502	−6.9	× 63 / 259	−1.7
6	81,794	2521.7	− 2531	−9.3	× 59 / 259	−2.1
Sum, rounded to a whole point						−35

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	75,839	2408.4	− 2432	−23.6	× 67 / 272	−5.8
4	75,841	2440.1	− 2473	−32.9	× 81 / 272	−9.8
5	75,843	2463.4	− 2502	−38.6	× 60 / 272	−8.5
6	75,845	2531.1	− 2531	0.1	× 64 / 272	0
Sum, rounded to a whole point						−24

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,872	2395.6	− 2432	−36.4	× 46 / 256	−6.5
4	77,873	2452.0	− 2473	−21	× 73 / 256	−6
5	77,875	2453.1	− 2502	−48.9	× 80 / 256	−15.3
6	77,878	2525.3	− 2531	−5.7	× 57 / 256	−1.3
Sum, rounded to a whole point						−29

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	78,032	2419.0	− 2432	−13	× 65 / 256	−3.3
4	78,035	2430.1	− 2473	−42.9	× 47 / 256	−7.9
5	78,036	2478.5	− 2502	−23.5	× 70 / 256	−6.4
6	78,039	2515.6	− 2531	−15.4	× 74 / 256	−4.5
Sum, rounded to a whole point						−22

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	78,560	2415.7	− 2432	−16.3	× 62 / 229	−4.4
4	78,561	2472.4	− 2473	−0.6	× 58 / 229	−0.2
5	78,562	2497.8	− 2502	−4.2	× 45 / 229	−0.8
6	78,563	2538.7	− 2531	7.7	× 64 / 229	2.2
Sum, rounded to a whole point						−3

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	78,828	2416.3	− 2432	−15.7	× 54 / 236	−3.6
4	78,829	2461.5	− 2473	−11.5	× 60 / 236	−2.9
5	78,830	2473.8	− 2502	−28.2	× 61 / 236	−7.3
6	78,831	2514.1	− 2531	−16.9	× 61 / 236	−4.4
Sum, rounded to a whole point						−18

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	78,814	2431.0	− 2432	−1	× 35 / 211	−0.2
4	78,815	2470.8	− 2473	−2.2	× 56 / 211	−0.6
5	78,816	2489.9	− 2502	−12.1	× 59 / 211	−3.4
6	78,817	2525.4	− 2531	−5.6	× 61 / 211	−1.6
Sum, rounded to a whole point						−6

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	78,840	2431.8	− 2432	−0.2	× 38 / 189	0
4	78,841	2461.9	− 2473	−11.1	× 37 / 189	−2.2
5	78,842	2503.2	− 2502	1.2	× 57 / 189	0.4
6	78,843	2537.1	− 2531	6.1	× 57 / 189	1.8
Sum, rounded to a whole point						0

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	78,518	2425.2	− 2432	−6.8	× 52 / 190	−1.9
4	78,519	2485.6	− 2473	12.6	× 42 / 190	2.8
5	78,520	2503.3	− 2502	1.3	× 40 / 190	0.3
6	78,521	2546.8	− 2531	15.8	× 56 / 190	4.7
Sum, rounded to a whole point						6

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −35, −24, −29, −22, −3, −18, −6, 0, 6 → −14.6
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 11 · 2016→2017: 5 · 2017→2018: 7 · 2018→2019: 19 · 2019→2022: 15 · 2022→2023: 12 · 2023→2024: 6 · 2024→2025: 6 → average 10.1
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 10.1 × 2.66 = 26.9. Upper limit 12.3, lower limit −41.5.

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.