Wiley Canyon Elementary: 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	35,194	2416.7	− 2436	−19.3	× 92 / 400	−4.4
4	35,195	2462.1	− 2485	−22.9	× 89 / 400	−5.1
5	35,198	2472.3	− 2528	−55.7	× 100 / 400	−13.9
6	35,199	2547.3	− 2552	−4.7	× 119 / 400	−1.4
Sum, rounded to a whole point						−25

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	32,862	2450.1	− 2436	14.1	× 109 / 386	4
4	32,864	2454.1	− 2485	−30.9	× 95 / 386	−7.6
5	32,866	2527.6	− 2528	−0.4	× 86 / 386	−0.1
6	32,867	2529.0	− 2552	−23	× 96 / 386	−5.7
Sum, rounded to a whole point						−9

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	33,428	2443.4	− 2436	7.4	× 78 / 359	1.6
4	33,429	2481.6	− 2485	−3.4	× 107 / 359	−1
5	33,432	2502.4	− 2528	−25.6	× 94 / 359	−6.7
6	33,434	2563.7	− 2552	11.7	× 80 / 359	2.6
Sum, rounded to a whole point						−4

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	33,452	2452.8	− 2436	16.8	× 72 / 341	3.5
4	33,454	2489.6	− 2485	4.6	× 78 / 341	1.1
5	33,456	2506.2	− 2528	−21.8	× 99 / 341	−6.3
6	33,457	2542.2	− 2552	−9.8	× 92 / 341	−2.6
Sum, rounded to a whole point						−4

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	33,628	2447.3	− 2436	11.3	× 80 / 323	2.8
4	33,629	2494.4	− 2485	9.4	× 68 / 323	2
5	33,630	2520.8	− 2528	−7.2	× 77 / 323	−1.7
6	33,631	2535.9	− 2552	−16.1	× 98 / 323	−4.9
Sum, rounded to a whole point						−2

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	32,835	2421.3	− 2436	−14.7	× 43 / 197	−3.2
4	32,836	2441.8	− 2485	−43.2	× 48 / 197	−10.5
5	32,837	2465.6	− 2528	−62.4	× 61 / 197	−19.3
6	32,838	2508.9	− 2552	−43.1	× 45 / 197	−9.8
Sum, rounded to a whole point						−43

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	33,557	2431.0	− 2436	−5	× 51 / 252	−1
4	33,558	2469.0	− 2485	−16	× 53 / 252	−3.4
5	33,559	2500.3	− 2528	−27.7	× 64 / 252	−7
6	33,560	2514.2	− 2552	−37.8	× 84 / 252	−12.6
Sum, rounded to a whole point						−24

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	33,608	2420.0	− 2436	−16	× 56 / 234	−3.8
4	33,609	2477.0	− 2485	−8	× 52 / 234	−1.8
5	33,610	2499.3	− 2528	−28.7	× 60 / 234	−7.4
6	33,611	2533.4	− 2552	−18.6	× 66 / 234	−5.2
Sum, rounded to a whole point						−18

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	33,468	2429.5	− 2436	−6.5	× 51 / 225	−1.5
4	33,469	2433.4	− 2485	−51.6	× 56 / 225	−12.8
5	33,470	2512.0	− 2528	−16	× 61 / 225	−4.3
6	33,471	2527.5	− 2552	−24.5	× 57 / 225	−6.2
Sum, rounded to a whole point						−25

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	33,329	2427.9	− 2436	−8.1	× 53 / 226	−1.9
4	33,330	2447.0	− 2485	−38	× 53 / 226	−8.9
5	33,331	2473.6	− 2528	−54.4	× 57 / 226	−13.7
6	33,332	2524.8	− 2552	−27.2	× 63 / 226	−7.6
Sum, rounded to a whole point						−32

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −25, −9, −4, −4, −2, −43, −24, −18, −25, −32 → −18.6
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 16 · 2016→2017: 5 · 2017→2018: 0 · 2018→2019: 2 · 2019→2021: 41 · 2021→2022: 19 · 2022→2023: 6 · 2023→2024: 7 · 2024→2025: 7 → average 11.4
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 11.4 × 2.66 = 30.3. Upper limit 11.7, lower limit −48.9.

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.