Mission Avenue Open 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	62,546	2428.0	− 2432	−4	× 90 / 308	−1.2
4	62,549	2471.0	− 2473	−2	× 64 / 308	−0.4
5	62,550	2485.7	− 2502	−16.3	× 78 / 308	−4.1
6	62,553	2534.4	− 2531	3.4	× 76 / 308	0.8
Sum, rounded to a whole point						−5

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	58,039	2428.0	− 2432	−4	× 61 / 291	−0.8
4	58,042	2491.7	− 2473	18.7	× 101 / 291	6.5
5	58,044	2489.2	− 2502	−12.8	× 66 / 291	−2.9
6	58,045	2514.2	− 2531	−16.8	× 63 / 291	−3.6
Sum, rounded to a whole point						−1

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	59,735	2414.0	− 2432	−18	× 62 / 280	−4
4	59,736	2501.8	− 2473	28.8	× 66 / 280	6.8
5	59,738	2509.5	− 2502	7.5	× 99 / 280	2.7
6	59,740	2518.5	− 2531	−12.5	× 53 / 280	−2.4
Sum, rounded to a whole point						3

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	59,851	2429.9	− 2432	−2.1	× 78 / 296	−0.6
4	59,854	2482.6	− 2473	9.6	× 67 / 296	2.2
5	59,855	2524.7	− 2502	22.7	× 68 / 296	5.2
6	59,858	2532.8	− 2531	1.8	× 83 / 296	0.5
Sum, rounded to a whole point						7

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	60,102	2424.8	− 2432	−7.2	× 77 / 287	−1.9
4	60,103	2474.5	− 2473	1.5	× 85 / 287	0.4
5	60,104	2507.9	− 2502	5.9	× 67 / 287	1.4
6	60,105	2540.9	− 2531	9.9	× 58 / 287	2
Sum, rounded to a whole point						2

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	60,170	2422.2	− 2432	−9.8	× 75 / 247	−3
4	60,171	2456.1	− 2473	−16.9	× 54 / 247	−3.7
5	60,172	2523.8	− 2502	21.8	× 54 / 247	4.8
6	60,173	2537.2	− 2531	6.2	× 64 / 247	1.6
Sum, rounded to a whole point						0

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	60,125	2393.5	− 2432	−38.5	× 51 / 215	−9.1
4	60,126	2443.7	− 2473	−29.3	× 77 / 215	−10.5
5	60,127	2507.4	− 2502	5.4	× 58 / 215	1.5
6	60,128	2506.2	− 2531	−24.8	× 29 / 215	−3.3
Sum, rounded to a whole point						−22

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	60,050	2406.8	− 2432	−25.2	× 51 / 243	−5.3
4	60,051	2431.9	− 2473	−41.1	× 54 / 243	−9.1
5	60,052	2467.2	− 2502	−34.8	× 85 / 243	−12.2
6	60,053	2515.5	− 2531	−15.5	× 53 / 243	−3.4
Sum, rounded to a whole point						−30

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	59,811	2397.0	− 2432	−35	× 76 / 253	−10.5
4	59,812	2443.1	− 2473	−29.9	× 57 / 253	−6.7
5	59,813	2485.4	− 2502	−16.6	× 58 / 253	−3.8
6	59,814	2522.9	− 2531	−8.1	× 62 / 253	−2
Sum, rounded to a whole point						−23

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −5, −1, 3, 7, 2, 0, −22, −30, −23 → −7.7
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 4 · 2016→2017: 4 · 2017→2018: 4 · 2018→2019: 5 · 2019→2022: 2 · 2022→2023: 22 · 2023→2024: 8 · 2024→2025: 7 → average 7
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 7 × 2.66 = 18.6. Upper limit 10.9, lower limit −26.3.

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.