Westmore Oaks 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	105,495	2391.7	− 2432	−40.3	× 64 / 547	−4.7
4	105,498	2439.4	− 2473	−33.6	× 102 / 547	−6.3
5	105,499	2474.3	− 2502	−27.7	× 102 / 547	−5.2
6	105,502	2477.5	− 2531	−53.5	× 97 / 547	−9.5
7	105,503	2506.8	− 2552	−45.2	× 92 / 547	−7.6
8	105,506	2511.3	− 2567	−55.7	× 90 / 547	−9.2
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	98,007	2383.7	− 2432	−48.3	× 81 / 547	−7.2
4	98,009	2432.0	− 2473	−41	× 82 / 547	−6.1
5	98,012	2441.9	− 2502	−60.1	× 108 / 547	−11.9
6	98,014	2493.7	− 2531	−37.3	× 99 / 547	−6.8
7	98,015	2517.0	− 2552	−35	× 92 / 547	−5.9
8	98,017	2533.4	− 2567	−33.6	× 85 / 547	−5.2
Sum, rounded to a whole point						−43

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	100,872	2343.3	− 2432	−88.7	× 80 / 525	−13.5
4	100,874	2408.9	− 2473	−64.1	× 88 / 525	−10.7
5	100,877	2450.5	− 2502	−51.5	× 83 / 525	−8.1
6	100,879	2479.6	− 2531	−51.4	× 92 / 525	−9
7	100,881	2518.0	− 2552	−34	× 93 / 525	−6
8	100,883	2543.2	− 2567	−23.8	× 89 / 525	−4
Sum, rounded to a whole point						−51

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	101,027	2369.2	− 2432	−62.8	× 60 / 475	−7.9
4	101,030	2395.0	− 2473	−78	× 80 / 475	−13.1
5	101,031	2450.4	− 2502	−51.6	× 84 / 475	−9.1
6	101,034	2458.6	− 2531	−72.4	× 86 / 475	−13.1
7	101,035	2480.4	− 2552	−71.6	× 85 / 475	−12.8
8	101,038	2524.3	− 2567	−42.7	× 80 / 475	−7.2
Sum, rounded to a whole point						−63

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	101,668	2370.7	− 2432	−61.3	× 64 / 441	−8.9
4	101,669	2430.8	− 2473	−42.2	× 62 / 441	−5.9
5	101,670	2424.5	− 2502	−77.5	× 73 / 441	−12.8
6	101,671	2455.5	− 2531	−75.5	× 79 / 441	−13.5
7	101,672	2480.6	− 2552	−71.4	× 82 / 441	−13.3
8	101,673	2515.2	− 2567	−51.8	× 81 / 441	−9.5
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	101,945	2348.4	− 2432	−83.6	× 67 / 333	−16.8
4	101,946	2376.8	− 2473	−96.2	× 59 / 333	−17
5	101,947	2413.5	− 2502	−88.5	× 51 / 333	−13.6
6	101,948	2467.5	− 2531	−63.5	× 52 / 333	−9.9
7	101,949	2499.4	− 2552	−52.6	× 45 / 333	−7.1
8	101,950	2465.9	− 2567	−101.1	× 59 / 333	−17.9
Sum, rounded to a whole point						−82

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	101,765	2346.6	− 2432	−85.4	× 56 / 348	−13.7
4	101,766	2373.3	− 2473	−99.7	× 70 / 348	−20.1
5	101,767	2407.3	− 2502	−94.7	× 59 / 348	−16.1
6	101,768	2429.1	− 2531	−101.9	× 60 / 348	−17.6
7	101,769	2456.3	− 2552	−95.7	× 54 / 348	−14.9
8	101,770	2469.1	− 2567	−97.9	× 49 / 348	−13.8
Sum, rounded to a whole point						−96

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	101,652	2316.7	− 2432	−115.3	× 53 / 336	−18.2
4	101,653	2343.6	− 2473	−129.4	× 62 / 336	−23.9
5	101,654	2376.5	− 2502	−125.5	× 60 / 336	−22.4
6	101,655	2440.1	− 2531	−90.9	× 57 / 336	−15.4
7	101,656	2470.2	− 2552	−81.8	× 54 / 336	−13.1
8	101,657	2481.4	− 2567	−85.6	× 50 / 336	−12.7
Sum, rounded to a whole point						−106

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	101,318	2319.0	− 2432	−113	× 50 / 332	−17
4	101,319	2379.8	− 2473	−93.2	× 56 / 332	−15.7
5	101,320	2373.5	− 2502	−128.5	× 60 / 332	−23.2
6	101,321	2435.1	− 2531	−95.9	× 54 / 332	−15.6
7	101,322	2447.1	− 2552	−104.9	× 49 / 332	−15.5
8	101,323	2486.7	− 2567	−80.3	× 63 / 332	−15.2
Sum, rounded to a whole point						−102

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −42, −43, −51, −63, −64, −82, −96, −106, −102 → −72.1
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 1 · 2016→2017: 8 · 2017→2018: 12 · 2018→2019: 1 · 2019→2022: 18 · 2022→2023: 14 · 2023→2024: 10 · 2024→2025: 4 → average 8.5
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 8.5 × 2.66 = 22.6. Upper limit −49.5, lower limit −94.7.

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.