Elsa Widenmann 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	93,686	2340.8	− 2432	−91.2	× 56 / 197	−25.9
4	93,689	2388.0	− 2473	−85	× 74 / 197	−31.9
5	93,690	2436.5	− 2502	−65.5	× 67 / 197	−22.3
Sum, rounded to a whole point						−80

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	87,056	2369.1	− 2432	−62.9	× 74 / 213	−21.9
4	87,057	2406.6	− 2473	−66.4	× 65 / 213	−20.3
5	87,060	2435.8	− 2502	−66.2	× 74 / 213	−23
Sum, rounded to a whole point						−65

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	89,519	2361.3	− 2432	−70.7	× 72 / 201	−25.3
4	89,520	2413.3	− 2473	−59.7	× 66 / 201	−19.6
5	89,523	2444.3	− 2502	−57.7	× 63 / 201	−18.1
Sum, rounded to a whole point						−63

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	89,730	2357.2	− 2432	−74.8	× 77 / 211	−27.3
4	89,731	2406.7	− 2473	−66.3	× 65 / 211	−20.4
5	89,734	2475.8	− 2502	−26.2	× 69 / 211	−8.6
Sum, rounded to a whole point						−56

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,351	2366.3	− 2432	−65.7	× 82 / 219	−24.6
4	90,352	2384.0	− 2473	−89	× 73 / 219	−29.7
5	90,353	2467.0	− 2502	−35	× 64 / 219	−10.2
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	90,597	2333.3	− 2432	−98.7	× 46 / 480	−9.5
4	90,598	2357.2	− 2473	−115.8	× 52 / 480	−12.5
5	90,599	2424.9	− 2502	−77.1	× 50 / 480	−8
6	90,600	2445.4	− 2531	−85.6	× 100 / 480	−17.8
7	90,601	2444.0	− 2552	−108	× 131 / 480	−29.5
8	90,602	2443.9	− 2567	−123.1	× 101 / 480	−25.9
Sum, rounded to a whole point						−103

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,499	2350.7	− 2432	−81.3	× 45 / 498	−7.3
4	90,500	2400.7	− 2473	−72.3	× 45 / 498	−6.5
5	90,501	2452.7	− 2502	−49.3	× 56 / 498	−5.5
6	90,502	2413.3	− 2531	−117.7	× 98 / 498	−23.2
7	90,503	2465.6	− 2552	−86.4	× 120 / 498	−20.8
8	90,504	2458.6	− 2567	−108.4	× 134 / 498	−29.2
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	90,432	2339.0	− 2432	−93	× 42 / 475	−8.2
4	90,433	2382.5	− 2473	−90.5	× 53 / 475	−10.1
5	90,434	2445.7	− 2502	−56.3	× 51 / 475	−6
6	90,435	2455.3	− 2531	−75.7	× 112 / 475	−17.8
7	90,436	2443.5	− 2552	−108.5	× 92 / 475	−21
8	90,437	2458.1	− 2567	−108.9	× 125 / 475	−28.7
Sum, rounded to a whole point						−92

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,110	2340.7	− 2432	−91.3	× 30 / 460	−6
4	90,111	2349.2	− 2473	−123.8	× 44 / 460	−11.8
5	90,112	2437.3	− 2502	−64.7	× 54 / 460	−7.6
6	90,113	2454.3	− 2531	−76.7	× 101 / 460	−16.8
7	90,114	2474.6	− 2552	−77.4	× 121 / 460	−20.4
8	90,115	2459.2	− 2567	−107.8	× 110 / 460	−25.8
Sum, rounded to a whole point						−88

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −80, −65, −63, −56, −64, −103, −93, −92, −88 → −78.2
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 15 · 2016→2017: 2 · 2017→2018: 7 · 2018→2019: 8 · 2019→2022: 39 · 2022→2023: 10 · 2023→2024: 1 · 2024→2025: 4 → average 10.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 10.8 × 2.66 = 28.7. Upper limit −49.5, lower limit −106.9.

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.