Westfield Village 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	105,485	2334.1	− 2432	−97.9	× 63 / 228	−27.1
4	105,488	2417.0	− 2473	−56	× 66 / 228	−16.2
5	105,489	2415.6	− 2502	−86.4	× 56 / 228	−21.2
6	105,492	2481.6	− 2531	−49.4	× 43 / 228	−9.3
Sum, rounded to a whole point						−74

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	97,999	2324.2	− 2432	−107.8	× 54 / 161	−36.2
4	98,001	2345.0	− 2473	−128	× 48 / 161	−38.2
5	98,004	2434.1	− 2502	−67.9	× 59 / 161	−24.9
Sum, rounded to a whole point						−99

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	100,865	2356.5	− 2432	−75.5	× 64 / 178	−27.1
4	100,866	2370.3	− 2473	−102.7	× 59 / 178	−34
5	100,869	2409.1	− 2502	−92.9	× 55 / 178	−28.7
Sum, rounded to a whole point						−90

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	101,018	2366.6	− 2432	−65.4	× 57 / 191	−19.5
4	101,019	2414.0	− 2473	−59	× 67 / 191	−20.7
5	101,022	2427.7	− 2502	−74.3	× 45 / 191	−17.5
6	101,023	2450.7	− 2531	−80.3	× 22 / 191	−9.2
Sum, rounded to a whole point						−67

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	101,658	2388.7	− 2432	−43.3	× 58 / 204	−12.3
4	101,659	2385.5	− 2473	−87.5	× 56 / 204	−24
5	101,660	2415.3	− 2502	−86.7	× 59 / 204	−25.1
6	101,661	2371.1	− 2531	−159.9	× 31 / 204	−24.3
Sum, rounded to a whole point						−86

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	101,931	2356.9	− 2432	−75.1	× 58 / 277	−15.7
4	101,932	2375.9	− 2473	−97.1	× 45 / 277	−15.8
5	101,933	2404.6	− 2502	−97.4	× 39 / 277	−13.7
6	101,934	2426.7	− 2531	−104.3	× 50 / 277	−18.8
7	101,935	2440.5	− 2552	−111.5	× 41 / 277	−16.5
8	101,936	2490.4	− 2567	−76.6	× 44 / 277	−12.2
Sum, rounded to a whole point						−93

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	101,751	2323.8	− 2432	−108.2	× 52 / 288	−19.5
4	101,752	2374.7	− 2473	−98.3	× 60 / 288	−20.5
5	101,753	2417.3	− 2502	−84.7	× 44 / 288	−12.9
6	101,754	2429.5	− 2531	−101.5	× 41 / 288	−14.4
7	101,755	2469.6	− 2552	−82.4	× 50 / 288	−14.3
8	101,756	2506.3	− 2567	−60.7	× 41 / 288	−8.6
Sum, rounded to a whole point						−90

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	101,638	2369.6	− 2432	−62.4	× 39 / 293	−8.3
4	101,639	2336.9	− 2473	−136.1	× 48 / 293	−22.3
5	101,640	2396.4	− 2502	−105.6	× 63 / 293	−22.7
6	101,641	2456.4	− 2531	−74.6	× 48 / 293	−12.2
7	101,642	2466.3	− 2552	−85.7	× 46 / 293	−13.5
8	101,643	2503.1	− 2567	−63.9	× 49 / 293	−10.7
Sum, rounded to a whole point						−90

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	101,304	2374.5	− 2432	−57.5	× 42 / 316	−7.6
4	101,305	2414.0	− 2473	−59	× 47 / 316	−8.8
5	101,306	2389.4	− 2502	−112.6	× 58 / 316	−20.7
6	101,307	2450.6	− 2531	−80.4	× 62 / 316	−15.8
7	101,308	2487.0	− 2552	−65	× 54 / 316	−11.1
8	101,309	2503.4	− 2567	−63.6	× 53 / 316	−10.7
Sum, rounded to a whole point						−75

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −74, −99, −90, −67, −86, −93, −90, −90, −75 → −84.9
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 25 · 2016→2017: 9 · 2017→2018: 23 · 2018→2019: 19 · 2019→2022: 7 · 2022→2023: 3 · 2023→2024: 0 · 2024→2025: 15 → average 12.6
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 12.6 × 2.66 = 33.5. Upper limit −51.4, lower limit −118.4.

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.