Pleasant Valley: math

The shaded band is this district'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	103,723	2437.3	− 2436	1.3	× 747 / 4414	0.2
4	103,726	2476.2	− 2485	−8.8	× 735 / 4414	−1.5
5	103,727	2512.8	− 2528	−15.2	× 727 / 4414	−2.5
6	103,730	2519.4	− 2552	−32.6	× 754 / 4414	−5.6
7	103,731	2561.7	− 2567	−5.3	× 721 / 4414	−0.9
8	103,734	2566.7	− 2586	−19.3	× 730 / 4414	−3.2
Sum, rounded to a whole point						−13

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	96,386	2450.0	− 2436	14	× 654 / 4389	2.1
4	96,387	2480.3	− 2485	−4.7	× 752 / 4389	−0.8
5	96,390	2519.9	− 2528	−8.1	× 740 / 4389	−1.4
6	96,392	2520.3	− 2552	−31.7	× 747 / 4389	−5.4
7	96,393	2548.5	− 2567	−18.5	× 757 / 4389	−3.2
8	96,396	2571.2	− 2586	−14.8	× 739 / 4389	−2.5
Sum, rounded to a whole point						−11

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	99,174	2448.5	− 2436	12.5	× 673 / 4323	1.9
4	99,176	2490.9	− 2485	5.9	× 669 / 4323	0.9
5	99,178	2515.3	− 2528	−12.7	× 749 / 4323	−2.2
6	99,181	2529.3	− 2552	−22.7	× 724 / 4323	−3.8
7	99,183	2547.9	− 2567	−19.1	× 756 / 4323	−3.3
8	99,185	2570.4	− 2586	−15.6	× 752 / 4323	−2.7
Sum, rounded to a whole point						−9

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	99,336	2450.1	− 2436	14.1	× 679 / 4202	2.3
4	99,337	2494.2	− 2485	9.2	× 670 / 4202	1.5
5	99,340	2532.8	− 2528	4.8	× 666 / 4202	0.8
6	99,341	2530.3	− 2552	−21.7	× 731 / 4202	−3.8
7	99,344	2544.4	− 2567	−22.6	× 715 / 4202	−3.8
8	99,345	2563.2	− 2586	−22.8	× 741 / 4202	−4
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	99,999	2458.0	− 2436	22	× 688 / 4099	3.7
4	100,000	2503.3	− 2485	18.3	× 662 / 4099	3
5	100,001	2531.8	− 2528	3.8	× 665 / 4099	0.6
6	100,002	2542.0	− 2552	−10	× 647 / 4099	−1.6
7	100,003	2551.0	− 2567	−16	× 746 / 4099	−2.9
8	100,004	2570.5	− 2586	−15.5	× 691 / 4099	−2.6
Sum, rounded to a whole point						0

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	97,844	2435.7	− 2436	−0.3	× 577 / 3599	0
4	97,845	2473.7	− 2485	−11.3	× 590 / 3599	−1.9
5	97,846	2504.7	− 2528	−23.3	× 616 / 3599	−4
6	97,847	2507.2	− 2552	−44.8	× 592 / 3599	−7.4
7	97,848	2532.2	− 2567	−34.8	× 613 / 3599	−5.9
8	97,849	2550.4	− 2586	−35.6	× 611 / 3599	−6
Sum, rounded to a whole point						−25

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	100,204	2450.5	− 2436	14.5	× 608 / 3659	2.4
4	100,205	2489.0	− 2485	4	× 598 / 3659	0.7
5	100,206	2517.8	− 2528	−10.2	× 586 / 3659	−1.6
6	100,207	2511.1	− 2552	−40.9	× 625 / 3659	−7
7	100,208	2537.9	− 2567	−29.1	× 625 / 3659	−5
8	100,209	2547.7	− 2586	−38.3	× 617 / 3659	−6.5
Sum, rounded to a whole point						−17

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	100,044	2458.1	− 2436	22.1	× 610 / 3610	3.7
4	100,045	2498.1	− 2485	13.1	× 626 / 3610	2.3
5	100,046	2516.1	− 2528	−11.9	× 591 / 3610	−1.9
6	100,047	2511.1	− 2552	−40.9	× 585 / 3610	−6.6
7	100,048	2538.8	− 2567	−28.2	× 604 / 3610	−4.7
8	100,049	2546.5	− 2586	−39.5	× 594 / 3610	−6.5
Sum, rounded to a whole point						−14

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	99,925	2461.8	− 2436	25.8	× 580 / 3606	4.1
4	99,926	2499.2	− 2485	14.2	× 631 / 3606	2.5
5	99,927	2531.4	− 2528	3.4	× 618 / 3606	0.6
6	99,928	2519.0	− 2552	−33	× 596 / 3606	−5.5
7	99,929	2527.6	− 2567	−39.4	× 585 / 3606	−6.4
8	99,930	2538.8	− 2586	−47.2	× 596 / 3606	−7.8
Sum, rounded to a whole point						−12

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	99,631	2460.6	− 2436	24.6	× 644 / 3744	4.2
4	99,632	2496.8	− 2485	11.8	× 585 / 3744	1.8
5	99,633	2525.4	− 2528	−2.6	× 648 / 3744	−0.5
6	99,634	2534.8	− 2552	−17.2	× 638 / 3744	−2.9
7	99,635	2541.5	− 2567	−25.5	× 613 / 3744	−4.2
8	99,636	2546.3	− 2586	−39.7	× 616 / 3744	−6.5
Sum, rounded to a whole point						−8

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	99,292	2453.4	− 2436	17.4	× 590 / 3728	2.8
4	99,293	2499.6	− 2485	14.6	× 634 / 3728	2.5
5	99,294	2522.6	− 2528	−5.4	× 598 / 3728	−0.9
6	99,295	2523.0	− 2552	−29	× 635 / 3728	−4.9
7	99,296	2551.2	− 2567	−15.8	× 652 / 3728	−2.8
8	99,297	2563.4	− 2586	−22.6	× 619 / 3728	−3.8
Sum, rounded to a whole point						−7

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −13, −11, −9, −7, 0, −25, −17, −14, −12, −8, −7 → −11.2
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 2 · 2016→2017: 2 · 2017→2018: 2 · 2018→2019: 7 · 2019→2021: 25 · 2021→2022: 8 · 2022→2023: 3 · 2023→2024: 2 · 2024→2025: 4 · 2025→2026: 1 → average 5.6
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 5.6 × 2.66 = 14.9. Upper limit 3.7, lower limit −26.1.

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 — for a district, the total across its schools. From 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.

Pleasant Valley