Aynesworth 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	10,543	2370.4	− 2436	−65.6	× 86 / 347	−16.3
4	10,544	2415.7	− 2485	−69.3	× 69 / 347	−13.8
5	10,547	2435.8	− 2528	−92.2	× 102 / 347	−27.1
6	10,548	2484.7	− 2552	−67.3	× 90 / 347	−17.5
Sum, rounded to a whole point						−75

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,560	2377.3	− 2436	−58.7	× 101 / 349	−17
4	9,562	2411.0	− 2485	−74	× 83 / 349	−17.6
5	9,565	2424.5	− 2528	−103.5	× 70 / 349	−20.8
6	9,567	2470.5	− 2552	−81.5	× 95 / 349	−22.2
Sum, rounded to a whole point						−78

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,889	2369.7	− 2436	−66.3	× 81 / 345	−15.6
4	9,890	2425.5	− 2485	−59.5	× 103 / 345	−17.8
5	9,892	2409.5	− 2528	−118.5	× 87 / 345	−29.9
6	9,895	2466.2	− 2552	−85.8	× 74 / 345	−18.4
Sum, rounded to a whole point						−82

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,906	2390.0	− 2436	−46	× 87 / 340	−11.8
4	9,909	2421.6	− 2485	−63.4	× 79 / 340	−14.7
5	9,910	2431.6	− 2528	−96.4	× 93 / 340	−26.4
6	9,913	2449.2	− 2552	−102.8	× 81 / 340	−24.5
Sum, rounded to a whole point						−77

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,987	2392.6	− 2436	−43.4	× 105 / 366	−12.5
4	9,988	2448.4	− 2485	−36.6	× 84 / 366	−8.4
5	9,989	2437.7	− 2528	−90.3	× 81 / 366	−20
6	9,990	2465.4	− 2552	−86.6	× 96 / 366	−22.7
Sum, rounded to a whole point						−64

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,980	2363.4	− 2436	−72.6	× 83 / 343	−17.6
4	9,981	2401.0	− 2485	−84	× 80 / 343	−19.6
5	9,982	2388.6	− 2528	−139.4	× 83 / 343	−33.7
6	9,983	2455.4	− 2552	−96.6	× 97 / 343	−27.3
Sum, rounded to a whole point						−98

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,968	2371.3	− 2436	−64.7	× 61 / 296	−13.3
4	9,969	2408.4	− 2485	−76.6	× 83 / 296	−21.5
5	9,970	2422.1	− 2528	−105.9	× 77 / 296	−27.5
6	9,971	2430.4	− 2552	−121.6	× 75 / 296	−30.8
Sum, rounded to a whole point						−93

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,934	2371.1	− 2436	−64.9	× 75 / 289	−16.8
4	9,935	2402.7	− 2485	−82.3	× 54 / 289	−15.4
5	9,936	2418.3	− 2528	−109.7	× 86 / 289	−32.6
6	9,937	2433.6	− 2552	−118.4	× 74 / 289	−30.3
Sum, rounded to a whole point						−95

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,911	2392.7	− 2436	−43.3	× 63 / 281	−9.7
4	9,912	2408.9	− 2485	−76.1	× 80 / 281	−21.7
5	9,913	2421.3	− 2528	−106.7	× 52 / 281	−19.7
6	9,914	2445.1	− 2552	−106.9	× 86 / 281	−32.7
Sum, rounded to a whole point						−84

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −75, −78, −82, −77, −64, −98, −93, −95, −84 → −82.9
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 3 · 2016→2017: 4 · 2017→2018: 5 · 2018→2019: 13 · 2019→2022: 34 · 2022→2023: 5 · 2023→2024: 2 · 2024→2025: 11 → average 9.6
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 9.6 × 2.66 = 25.5. Upper limit −57.4, lower limit −108.4.

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.