Los Robles Magnet Academy: 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.

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	83,331	2338.2	− 2436	−97.8	× 42 / 177	−23.2
4	83,332	2422.9	− 2485	−62.1	× 36 / 177	−12.6
5	83,335	2452.4	− 2528	−75.6	× 31 / 177	−13.2
6	83,336	2443.8	− 2552	−108.2	× 24 / 177	−14.7
7	83,339	2488.3	− 2567	−78.7	× 20 / 177	−8.9
8	83,340	2529.7	− 2586	−56.3	× 24 / 177	−7.6
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	77,263	2402.9	− 2436	−33.1	× 46 / 194	−7.8
4	77,264	2372.4	− 2485	−112.6	× 39 / 194	−22.6
5	77,266	2426.9	− 2528	−101.1	× 35 / 194	−18.2
6	77,268	2470.4	− 2552	−81.6	× 31 / 194	−13
7	77,271	2499.5	− 2567	−67.5	× 22 / 194	−7.7
8	77,272	2491.8	− 2586	−94.2	× 21 / 194	−10.2
Sum, rounded to a whole point						−80

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,374	2346.7	− 2436	−89.3	× 36 / 201	−16
4	79,376	2423.7	− 2485	−61.3	× 43 / 201	−13.1
5	79,377	2449.4	− 2528	−78.6	× 39 / 201	−15.3
6	79,380	2447.5	− 2552	−104.5	× 31 / 201	−16.1
7	79,382	2514.8	− 2567	−52.2	× 29 / 201	−7.5
8	79,383	2468.9	− 2586	−117.1	× 23 / 201	−13.4
Sum, rounded to a whole point						−81

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,515	2401.1	− 2436	−34.9	× 48 / 151	−11.1
4	79,516	2409.6	− 2485	−75.4	× 35 / 151	−17.5
5	79,519	2492.1	− 2528	−35.9	× 40 / 151	−9.5
8	79,523	2511.4	− 2586	−74.6	× 28 / 151	−13.8
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	80,035	2386.5	− 2436	−49.5	× 60 / 167	−17.8
4	80,036	2427.8	− 2485	−57.2	× 48 / 167	−16.4
5	80,037	2424.1	− 2528	−103.9	× 32 / 167	−19.9
8	80,038	2456.9	− 2586	−129.1	× 27 / 167	−20.9
Sum, rounded to a whole point						−75

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,308	2340.5	− 2436	−95.5	× 26 / 76	−32.7
4	80,309	2367.6	− 2485	−117.4	× 21 / 76	−32.4
5	80,310	2389.0	− 2528	−139	× 29 / 76	−53
Sum, rounded to a whole point						−118

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,272	2293.9	− 2436	−142.1	× 38 / 94	−57.4
4	80,273	2333.1	− 2485	−151.9	× 29 / 94	−46.9
5	80,274	2364.3	− 2528	−163.7	× 27 / 94	−47
Sum, rounded to a whole point						−151

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,292	2332.4	− 2436	−103.6	× 50 / 110	−47.1
4	80,293	2337.8	− 2485	−147.2	× 34 / 110	−45.5
5	80,294	2400.4	− 2528	−127.6	× 26 / 110	−30.2
Sum, rounded to a whole point						−123

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,952	2327.0	− 2436	−109	× 45 / 129	−38
4	79,953	2375.3	− 2485	−109.7	× 49 / 129	−41.7
5	79,954	2373.2	− 2528	−154.8	× 35 / 129	−42
Sum, rounded to a whole point						−122

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −80, −80, −81, −52, −75, −118, −151, −123, −122 → −98
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 0 · 2016→2017: 1 · 2017→2018: 29 · 2018→2019: 23 · 2019→2022: 43 · 2022→2023: 33 · 2023→2024: 28 · 2024→2025: 1 → average 19.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 19.8 × 2.66 = 52.7. Upper limit −45.3, lower limit −150.7.

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.