Pleasant Valley School Of Engineering And Arts: 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	103,783	2413.0	− 2436	−23	× 65 / 208	−7.2
4	103,786	2452.6	− 2485	−32.4	× 54 / 208	−8.4
5	103,787	2475.1	− 2528	−52.9	× 49 / 208	−12.5
6	103,790	2472.7	− 2552	−79.3	× 40 / 208	−15.3
Sum, rounded to a whole point						−43

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	96,443	2394.6	− 2436	−41.4	× 47 / 258	−7.5
4	96,445	2450.2	− 2485	−34.8	× 65 / 258	−8.8
5	96,447	2476.7	− 2528	−51.3	× 61 / 258	−12.1
6	96,450	2460.8	− 2552	−91.2	× 51 / 258	−18
7	96,451	2502.6	− 2567	−64.4	× 34 / 258	−8.5
Sum, rounded to a whole point						−55

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	99,231	2410.3	− 2436	−25.7	× 46 / 273	−4.3
4	99,233	2469.7	− 2485	−15.3	× 48 / 273	−2.7
5	99,235	2476.7	− 2528	−51.3	× 61 / 273	−11.5
6	99,237	2478.4	− 2552	−73.6	× 42 / 273	−11.3
7	99,239	2470.9	− 2567	−96.1	× 47 / 273	−16.5
8	99,240	2509.2	− 2586	−76.8	× 29 / 273	−8.2
Sum, rounded to a whole point						−55

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	99,390	2453.6	− 2436	17.6	× 51 / 277	3.2
4	99,391	2491.1	− 2485	6.1	× 49 / 277	1.1
5	99,394	2510.6	− 2528	−17.4	× 50 / 277	−3.1
6	99,395	2478.7	− 2552	−73.3	× 52 / 277	−13.8
7	99,398	2492.0	− 2567	−75	× 37 / 277	−10
8	99,399	2462.7	− 2586	−123.3	× 38 / 277	−16.9
Sum, rounded to a whole point						−40

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	100,053	2449.1	− 2436	13.1	× 67 / 313	2.8
4	100,054	2517.5	− 2485	32.5	× 55 / 313	5.7
5	100,055	2537.5	− 2528	9.5	× 50 / 313	1.5
6	100,056	2504.6	− 2552	−47.4	× 50 / 313	−7.6
7	100,057	2486.8	− 2567	−80.2	× 60 / 313	−15.4
8	100,058	2556.9	− 2586	−29.1	× 31 / 313	−2.9
Sum, rounded to a whole point						−16

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	97,912	2386.6	− 2436	−49.4	× 55 / 333	−8.2
4	97,913	2431.5	− 2485	−53.5	× 73 / 333	−11.7
5	97,914	2506.1	− 2528	−21.9	× 65 / 333	−4.3
6	97,915	2478.4	− 2552	−73.6	× 59 / 333	−13
7	97,916	2510.6	− 2567	−56.4	× 37 / 333	−6.3
8	97,917	2494.0	− 2586	−92	× 44 / 333	−12.2
Sum, rounded to a whole point						−56

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	100,274	2407.7	− 2436	−28.3	× 50 / 320	−4.4
4	100,275	2468.7	− 2485	−16.3	× 62 / 320	−3.2
5	100,276	2499.8	− 2528	−28.2	× 64 / 320	−5.6
6	100,277	2476.2	− 2552	−75.8	× 58 / 320	−13.7
7	100,278	2492.4	− 2567	−74.6	× 52 / 320	−12.1
8	100,279	2516.2	− 2586	−69.8	× 34 / 320	−7.4
Sum, rounded to a whole point						−46

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	100,110	2425.5	− 2436	−10.5	× 66 / 339	−2
4	100,111	2448.2	− 2485	−36.8	× 56 / 339	−6.1
5	100,112	2478.3	− 2528	−49.7	× 63 / 339	−9.2
6	100,113	2459.9	− 2552	−92.1	× 48 / 339	−13
7	100,114	2477.2	− 2567	−89.8	× 63 / 339	−16.7
8	100,115	2485.8	− 2586	−100.2	× 43 / 339	−12.7
Sum, rounded to a whole point						−60

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	99,991	2412.6	− 2436	−23.4	× 57 / 346	−3.9
4	99,992	2461.4	− 2485	−23.6	× 69 / 346	−4.7
5	99,993	2480.2	− 2528	−47.8	× 50 / 346	−6.9
6	99,994	2441.1	− 2552	−110.9	× 63 / 346	−20.2
7	99,995	2474.8	− 2567	−92.2	× 46 / 346	−12.3
8	99,996	2478.7	− 2586	−107.3	× 61 / 346	−18.9
Sum, rounded to a whole point						−67

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	99,697	2416.8	− 2436	−19.2	× 66 / 377	−3.4
4	99,698	2449.0	− 2485	−36	× 59 / 377	−5.6
5	99,699	2502.6	− 2528	−25.4	× 70 / 377	−4.7
6	99,700	2469.5	− 2552	−82.5	× 53 / 377	−11.6
7	99,701	2484.7	− 2567	−82.3	× 64 / 377	−14
8	99,702	2501.7	− 2586	−84.3	× 65 / 377	−14.5
Sum, rounded to a whole point						−54

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −43, −55, −55, −40, −16, −56, −46, −60, −67, −54 → −49.2
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 12 · 2016→2017: 0 · 2017→2018: 15 · 2018→2019: 24 · 2019→2021: 40 · 2021→2022: 10 · 2022→2023: 14 · 2023→2024: 7 · 2024→2025: 13 → average 15
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 15 × 2.66 = 39.9. Upper limit −9.3, lower limit −89.1.

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.