Stanford Avenue Elementary: 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 5.

3rd The average 3rd grader scores 25 points under the grade 3 bar. 2411 vs. 2436.
4th The average 4th grader scores 37 points under the grade 3 bar. 2399 vs. 2436. The 4th-grade bar is 2485.
5th The average 5th grader scores 43 points under the grade 4 bar. 2442 vs. 2485. The 5th-grade bar is 2528.

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	4,870	2360.3	− 2436	−75.7	× 83 / 258	−24.4
4	4,873	2414.0	− 2485	−71	× 77 / 258	−21.2
5	4,874	2460.7	− 2528	−67.3	× 68 / 258	−17.7
6	4,877	2493.1	− 2552	−58.9	× 30 / 258	−6.8
Sum, rounded to a whole point						−70

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,372	2373.9	− 2436	−62.1	× 76 / 255	−18.5
4	4,374	2427.1	− 2485	−57.9	× 72 / 255	−16.3
5	4,377	2471.0	− 2528	−57	× 76 / 255	−17
6	4,379	2491.6	− 2552	−60.4	× 31 / 255	−7.3
Sum, rounded to a whole point						−59

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,455	2386.7	− 2436	−49.3	× 89 / 262	−16.7
4	4,456	2440.0	− 2485	−45	× 73 / 262	−12.5
5	4,458	2453.4	− 2528	−74.6	× 74 / 262	−21.1
6	4,460	2482.8	− 2552	−69.2	× 26 / 262	−6.9
Sum, rounded to a whole point						−57

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,447	2382.0	− 2436	−54	× 73 / 216	−18.3
4	4,448	2438.0	− 2485	−47	× 75 / 216	−16.3
5	4,451	2471.3	− 2528	−56.7	× 68 / 216	−17.9
Sum, rounded to a whole point						−52

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,486	2393.7	− 2436	−42.3	× 86 / 236	−15.4
4	4,487	2464.4	− 2485	−20.6	× 75 / 236	−6.5
5	4,488	2473.0	− 2528	−55	× 75 / 236	−17.5
Sum, rounded to a whole point						−39

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,376	2323.5	− 2436	−112.5	× 70 / 200	−39.4
4	4,377	2415.8	− 2485	−69.2	× 60 / 200	−20.8
5	4,378	2404.3	− 2528	−123.7	× 70 / 200	−43.3
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	4,357	2348.3	− 2436	−87.7	× 62 / 190	−28.6
4	4,358	2396.6	− 2485	−88.4	× 60 / 190	−27.9
5	4,359	2410.2	− 2528	−117.8	× 68 / 190	−42.2
Sum, rounded to a whole point						−99

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,322	2349.2	− 2436	−86.8	× 74 / 193	−33.3
4	4,323	2418.1	− 2485	−66.9	× 59 / 193	−20.5
5	4,324	2415.0	− 2528	−113	× 60 / 193	−35.1
Sum, rounded to a whole point						−89

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,276	2389.2	− 2436	−46.8	× 58 / 172	−15.8
4	4,277	2390.5	− 2485	−94.5	× 61 / 172	−33.5
5	4,278	2456.7	− 2528	−71.3	× 53 / 172	−22
Sum, rounded to a whole point						−71

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,272	2410.9	− 2436	−25.1	× 56 / 192	−7.3
4	4,273	2398.9	− 2485	−86.1	× 70 / 192	−31.4
5	4,274	2442.0	− 2528	−86	× 66 / 192	−29.6
Sum, rounded to a whole point						−68

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −70, −59, −57, −52, −39, −103, −99, −89, −71, −68 → −70.7
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 11 · 2016→2017: 2 · 2017→2018: 5 · 2018→2019: 13 · 2019→2022: 64 · 2022→2023: 4 · 2023→2024: 10 · 2024→2025: 18 · 2025→2026: 3 → average 14.4
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 14.4 × 2.66 = 38.3. Upper limit −32.4, lower limit −109.

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.