W.E.B. DuBois Public Charter: 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.

Measured against the grade bars

The state's math test uses one scale for every grade, so a score means the same thing in grade 3 as in grade 11.

3rd The average 3rd grader scores 50 points under the grade 3 bar. 2386 vs. 2436.
4th The average 4th grader scores just under the grade 4 bar. 2480 vs. 2485.
5th The average 5th grader scores 49 points under the grade 4 bar. 2437 vs. 2485. The 5th-grade bar is 2528.
6th The average 6th grader scores 30 points under the grade 4 bar. 2455 vs. 2485. The 6th-grade bar is 2552.
7th The average 7th grader scores just under the grade 4 bar. 2482 vs. 2485. The 7th-grade bar is 2567.
8th The average 8th grader scores just under the grade 4 bar. 2476 vs. 2485. The 8th-grade bar is 2586.
11th The average 11th grader scores 20 points under the grade 5 bar. 2508 vs. 2528. The 11th-grade bar is 2628.

2026 results. "Meets standard" is the state's mark for being on track for that grade.

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	12,899	2342.2	− 2436	−93.8	× 19 / 160	−11.1
4	12,900	2387.4	− 2485	−97.6	× 25 / 160	−15.3
5	12,903	2451.3	− 2528	−76.7	× 19 / 160	−9.1
6	12,904	2411.3	− 2552	−140.7	× 23 / 160	−20.2
8	12,908	2428.3	− 2586	−157.7	× 17 / 160	−16.8
11	12,911	2417.9	− 2628	−210.1	× 57 / 160	−74.8
Sum, rounded to a whole point						−147

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,918	2320.3	− 2436	−115.7	× 20 / 154	−15
4	11,920	2412.8	− 2485	−72.2	× 17 / 154	−8
5	11,923	2424.7	− 2528	−103.3	× 27 / 154	−18.1
6	11,925	2409.1	− 2552	−142.9	× 21 / 154	−19.5
7	11,927	2408.2	− 2567	−158.8	× 19 / 154	−19.6
11	11,931	2417.6	− 2628	−210.4	× 50 / 154	−68.3
Sum, rounded to a whole point						−148

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	12,245	2383.1	− 2436	−52.9	× 25 / 187	−7.1
4	12,247	2365.5	− 2485	−119.5	× 23 / 187	−14.7
5	12,249	2481.9	− 2528	−46.1	× 16 / 187	−3.9
6	12,251	2436.0	− 2552	−116	× 24 / 187	−14.9
7	12,253	2433.1	− 2567	−133.9	× 18 / 187	−12.9
8	12,255	2385.1	− 2586	−200.9	× 16 / 187	−17.2
11	12,257	2431.1	− 2628	−196.9	× 65 / 187	−68.4
Sum, rounded to a whole point						−139

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	12,276	2363.9	− 2436	−72.1	× 23 / 183	−9.1
4	12,278	2448.0	− 2485	−37	× 24 / 183	−4.9
5	12,280	2377.5	− 2528	−150.5	× 22 / 183	−18.1
6	12,282	2421.2	− 2552	−130.8	× 16 / 183	−11.4
7	12,284	2445.3	− 2567	−121.7	× 19 / 183	−12.6
8	12,286	2481.3	− 2586	−104.7	× 21 / 183	−12
11	12,288	2422.7	− 2628	−205.3	× 58 / 183	−65.1
Sum, rounded to a whole point						−133

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	12,378	2364.6	− 2436	−71.4	× 24 / 162	−10.6
4	12,379	2452.7	− 2485	−32.3	× 15 / 162	−3
5	12,380	2452.0	− 2528	−76	× 24 / 162	−11.3
6	12,381	2392.5	− 2552	−159.5	× 24 / 162	−23.6
7	12,382	2461.4	− 2567	−105.6	× 19 / 162	−12.4
8	12,383	2502.6	− 2586	−83.4	× 24 / 162	−12.4
11	12,384	2450.8	− 2628	−177.2	× 32 / 162	−35
Sum, rounded to a whole point						−108

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	12,200	2323.2	− 2436	−112.8	× 33 / 191	−19.5
4	12,201	2418.0	− 2485	−67	× 26 / 191	−9.1
5	12,202	2384.6	− 2528	−143.4	× 24 / 191	−18
6	12,203	2414.1	− 2552	−137.9	× 20 / 191	−14.4
7	12,204	2417.8	− 2567	−149.2	× 25 / 191	−19.5
8	12,205	2400.2	− 2586	−185.8	× 27 / 191	−26.3
11	12,206	2424.8	− 2628	−203.2	× 36 / 191	−38.3
Sum, rounded to a whole point						−145

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	12,381	2343.4	− 2436	−92.6	× 27 / 183	−13.7
4	12,382	2435.7	− 2485	−49.3	× 32 / 183	−8.6
5	12,383	2426.1	− 2528	−101.9	× 26 / 183	−14.5
6	12,384	2411.0	− 2552	−141	× 20 / 183	−15.4
7	12,385	2424.7	− 2567	−142.3	× 25 / 183	−19.4
8	12,386	2437.7	− 2586	−148.3	× 22 / 183	−17.8
11	12,387	2464.4	− 2628	−163.6	× 31 / 183	−27.7
Sum, rounded to a whole point						−117

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	12,360	2348.9	− 2436	−87.1	× 19 / 161	−10.3
4	12,361	2452.9	− 2485	−32.1	× 25 / 161	−5
5	12,362	2434.3	− 2528	−93.7	× 27 / 161	−15.7
6	12,363	2438.3	− 2552	−113.7	× 22 / 161	−15.5
7	12,364	2415.7	− 2567	−151.3	× 24 / 161	−22.6
8	12,365	2408.4	− 2586	−177.6	× 16 / 161	−17.6
11	12,366	2465.6	− 2628	−162.4	× 28 / 161	−28.2
Sum, rounded to a whole point						−115

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	12,337	2378.7	− 2436	−57.3	× 26 / 164	−9.1
4	12,338	2494.1	− 2485	9.1	× 19 / 164	1.1
5	12,339	2441.4	− 2528	−86.6	× 19 / 164	−10
6	12,340	2433.2	− 2552	−118.8	× 23 / 164	−16.7
7	12,341	2428.6	− 2567	−138.4	× 21 / 164	−17.7
8	12,342	2456.7	− 2586	−129.3	× 25 / 164	−19.7
11	12,343	2453.4	− 2628	−174.6	× 31 / 164	−33
Sum, rounded to a whole point						−105

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	12,308	2384.1	− 2436	−51.9	× 21 / 169	−6.4
4	12,309	2400.2	− 2485	−84.8	× 22 / 169	−11
5	12,310	2526.6	− 2528	−1.4	× 16 / 169	−0.1
6	12,311	2473.1	− 2552	−78.9	× 22 / 169	−10.3
7	12,312	2445.5	− 2567	−121.5	× 22 / 169	−15.8
8	12,313	2432.8	− 2586	−153.2	× 27 / 169	−24.5
11	12,314	2471.9	− 2628	−156.1	× 39 / 169	−36
Sum, rounded to a whole point						−104

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	12,330	2386.2	− 2436	−49.8	× 25 / 159	−7.8
4	12,331	2480.4	− 2485	−4.6	× 22 / 159	−0.6
5	12,332	2436.5	− 2528	−91.5	× 26 / 159	−15
6	12,333	2455.3	− 2552	−96.7	× 16 / 159	−9.7
7	12,334	2482.0	− 2567	−85	× 21 / 159	−11.2
8	12,335	2476.1	− 2586	−109.9	× 27 / 159	−18.7
11	12,336	2507.8	− 2628	−120.2	× 22 / 159	−16.6
Sum, rounded to a whole point						−80

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −147, −148, −139, −133, −108, −145, −117, −115, −105, −104, −80 → −121.9
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: 9 · 2017→2018: 6 · 2018→2019: 25 · 2019→2021: 37 · 2021→2022: 28 · 2022→2023: 2 · 2023→2024: 10 · 2024→2025: 1 · 2025→2026: 24 → average 14.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 14.3 × 2.66 = 38. Upper limit −83.9, lower limit −159.9.

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.