Mira Vista 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	7,770	2389.2	− 2432	−42.8	× 53 / 370	−6.1
4	7,772	2460.9	− 2473	−12.1	× 57 / 370	−1.9
5	7,774	2470.2	− 2502	−31.8	× 71 / 370	−6.1
6	7,776	2501.4	− 2531	−29.6	× 67 / 370	−5.4
7	7,778	2485.0	− 2552	−67	× 61 / 370	−11
8	7,780	2534.3	− 2567	−32.7	× 61 / 370	−5.4
Sum, rounded to a whole point						−36

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	6,954	2384.3	− 2432	−47.7	× 58 / 378	−7.3
4	6,957	2430.2	− 2473	−42.8	× 62 / 378	−7
5	6,958	2486.4	− 2502	−15.6	× 65 / 378	−2.7
6	6,961	2517.8	− 2531	−13.2	× 68 / 378	−2.4
7	6,963	2519.2	− 2552	−32.8	× 65 / 378	−5.6
8	6,965	2537.7	− 2567	−29.3	× 60 / 378	−4.7
Sum, rounded to a whole point						−30

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,167	2411.3	− 2432	−20.7	× 55 / 380	−3
4	7,168	2421.8	− 2473	−51.2	× 70 / 380	−9.4
5	7,170	2450.4	− 2502	−51.6	× 69 / 380	−9.4
6	7,173	2529.6	− 2531	−1.4	× 69 / 380	−0.3
7	7,175	2549.9	− 2552	−2.1	× 59 / 380	−0.3
8	7,177	2573.6	− 2567	6.6	× 58 / 380	1
Sum, rounded to a whole point						−21

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,184	2416.1	− 2432	−15.9	× 49 / 351	−2.2
4	7,187	2428.7	− 2473	−44.3	× 65 / 351	−8.2
5	7,188	2473.6	− 2502	−28.4	× 69 / 351	−5.6
6	7,191	2522.9	− 2531	−8.1	× 68 / 351	−1.6
7	7,192	2512.7	− 2552	−39.3	× 47 / 351	−5.3
8	7,195	2586.9	− 2567	19.9	× 53 / 351	3
Sum, rounded to a whole point						−20

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,226	2382.7	− 2432	−49.3	× 62 / 364	−8.4
4	7,227	2445.9	− 2473	−27.1	× 61 / 364	−4.5
5	7,228	2463.6	− 2502	−38.4	× 68 / 364	−7.2
6	7,229	2516.4	− 2531	−14.6	× 70 / 364	−2.8
7	7,230	2532.5	− 2552	−19.5	× 60 / 364	−3.2
8	7,231	2526.7	− 2567	−40.3	× 43 / 364	−4.8
Sum, rounded to a whole point						−31

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,167	2395.1	− 2432	−36.9	× 62 / 344	−6.7
4	7,168	2430.5	− 2473	−42.5	× 74 / 344	−9.1
5	7,169	2437.5	− 2502	−64.5	× 71 / 344	−13.3
6	7,170	2508.0	− 2531	−23	× 57 / 344	−3.8
7	7,171	2485.1	− 2552	−66.9	× 42 / 344	−8.2
8	7,172	2539.7	− 2567	−27.3	× 38 / 344	−3
Sum, rounded to a whole point						−44

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,155	2386.0	− 2432	−46	× 61 / 313	−9
4	7,156	2428.7	− 2473	−44.3	× 57 / 313	−8.1
5	7,157	2476.1	− 2502	−25.9	× 62 / 313	−5.1
6	7,158	2503.7	− 2531	−27.3	× 58 / 313	−5.1
7	7,159	2482.7	− 2552	−69.3	× 41 / 313	−9.1
8	7,160	2508.4	− 2567	−58.6	× 34 / 313	−6.4
Sum, rounded to a whole point						−43

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,102	2398.9	− 2432	−33.1	× 70 / 303	−7.6
4	7,103	2412.7	− 2473	−60.3	× 59 / 303	−11.7
5	7,104	2458.8	− 2502	−43.2	× 56 / 303	−8
6	7,105	2527.1	− 2531	−3.9	× 61 / 303	−0.8
7	7,106	2500.7	− 2552	−51.3	× 29 / 303	−4.9
8	7,107	2538.8	− 2567	−28.2	× 28 / 303	−2.6
Sum, rounded to a whole point						−36

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,062	2400.9	− 2432	−31.1	× 68 / 318	−6.7
4	7,063	2422.8	− 2473	−50.2	× 77 / 318	−12.2
5	7,064	2466.7	− 2502	−35.3	× 63 / 318	−7
6	7,065	2535.9	− 2531	4.9	× 54 / 318	0.8
7	7,066	2533.3	− 2552	−18.7	× 29 / 318	−1.7
8	7,067	2546.0	− 2567	−21	× 27 / 318	−1.8
Sum, rounded to a whole point						−28

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −36, −30, −21, −20, −31, −44, −43, −36, −28 → −32.1
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 6 · 2016→2017: 9 · 2017→2018: 1 · 2018→2019: 11 · 2019→2022: 13 · 2022→2023: 1 · 2023→2024: 7 · 2024→2025: 8 → 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 −13.5, lower limit −50.7.

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.