Virginia Parks 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	96,457	2392.0	− 2432	−40	× 94 / 385	−9.8
4	96,458	2420.3	− 2473	−52.7	× 95 / 385	−13
5	96,461	2459.1	− 2502	−42.9	× 98 / 385	−10.9
6	96,462	2499.0	− 2531	−32	× 98 / 385	−8.1
Sum, rounded to a whole point						−42

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	89,496	2397.4	− 2432	−34.6	× 90 / 381	−8.2
4	89,499	2439.6	− 2473	−33.4	× 95 / 381	−8.3
5	89,501	2463.2	− 2502	−38.8	× 98 / 381	−10
6	89,503	2505.7	− 2531	−25.3	× 98 / 381	−6.5
Sum, rounded to a whole point						−33

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	92,102	2382.3	− 2432	−49.7	× 95 / 392	−12
4	92,104	2441.1	− 2473	−31.9	× 100 / 392	−8.1
5	92,106	2468.8	− 2502	−33.2	× 99 / 392	−8.4
6	92,109	2499.3	− 2531	−31.7	× 98 / 392	−7.9
Sum, rounded to a whole point						−36

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	92,303	2405.7	− 2432	−26.3	× 95 / 392	−6.4
4	92,306	2472.4	− 2473	−0.6	× 99 / 392	−0.2
5	92,307	2472.9	− 2502	−29.1	× 99 / 392	−7.3
6	92,310	2513.3	− 2531	−17.7	× 99 / 392	−4.5
Sum, rounded to a whole point						−18

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	92,944	2403.1	− 2432	−28.9	× 85 / 372	−6.6
4	92,945	2459.9	− 2473	−13.1	× 95 / 372	−3.3
5	92,946	2483.4	− 2502	−18.6	× 93 / 372	−4.7
6	92,947	2511.2	− 2531	−19.8	× 99 / 372	−5.3
Sum, rounded to a whole point						−20

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	93,181	2373.9	− 2432	−58.1	× 95 / 361	−15.3
4	93,182	2438.9	− 2473	−34.1	× 90 / 361	−8.5
5	93,183	2442.0	− 2502	−60	× 93 / 361	−15.5
6	93,184	2515.0	− 2531	−16	× 83 / 361	−3.7
Sum, rounded to a whole point						−43

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	93,081	2396.5	− 2432	−35.5	× 84 / 355	−8.4
4	93,082	2445.3	− 2473	−27.7	× 93 / 355	−7.3
5	93,083	2424.6	− 2502	−77.4	× 90 / 355	−19.6
6	93,084	2489.0	− 2531	−42	× 88 / 355	−10.4
Sum, rounded to a whole point						−46

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	92,964	2367.6	− 2432	−64.4	× 90 / 362	−16
4	92,965	2452.4	− 2473	−20.6	× 82 / 362	−4.7
5	92,966	2441.3	− 2502	−60.7	× 97 / 362	−16.3
6	92,967	2486.1	− 2531	−44.9	× 93 / 362	−11.5
Sum, rounded to a whole point						−48

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	92,696	2395.8	− 2432	−36.2	× 92 / 373	−8.9
4	92,697	2427.5	− 2473	−45.5	× 91 / 373	−11.1
5	92,698	2472.6	− 2502	−29.4	× 86 / 373	−6.8
6	92,699	2506.8	− 2531	−24.2	× 104 / 373	−6.7
Sum, rounded to a whole point						−34

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −42, −33, −36, −18, −20, −43, −46, −48, −34 → −35.6
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 9 · 2016→2017: 3 · 2017→2018: 18 · 2018→2019: 2 · 2019→2022: 23 · 2022→2023: 3 · 2023→2024: 2 · 2024→2025: 14 → average 9.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 9.3 × 2.66 = 24.7. Upper limit −10.9, lower limit −60.3.

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.