Monterey County Home Charter: 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
5	45,316	2439.6	− 2528	−88.4	× 14 / 153	−8.1
6	45,317	2461.2	− 2552	−90.8	× 16 / 153	−9.5
7	45,320	2466.5	− 2567	−100.5	× 21 / 153	−13.8
8	45,321	2464.3	− 2586	−121.7	× 28 / 153	−22.3
11	45,324	2490.4	− 2628	−137.6	× 74 / 153	−66.6
Sum, rounded to a whole point						−120

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	42,017	2422.4	− 2485	−62.6	× 13 / 152	−5.4
6	42,022	2442.7	− 2552	−109.3	× 19 / 152	−13.7
7	42,024	2514.5	− 2567	−52.5	× 24 / 152	−8.3
8	42,026	2471.4	− 2586	−114.6	× 18 / 152	−13.6
11	42,028	2499.2	− 2628	−128.8	× 78 / 152	−66.1
Sum, rounded to a whole point						−107

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
7	43,065	2484.0	− 2567	−83	× 24 / 94	−21.2
8	43,067	2485.5	− 2586	−100.5	× 24 / 94	−25.7
11	43,068	2535.0	− 2628	−93	× 46 / 94	−45.5
Sum, rounded to a whole point						−92

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
5	43,065	2427.5	− 2528	−100.5	× 11 / 117	−9.4
7	43,069	2519.2	− 2567	−47.8	× 15 / 117	−6.1
8	43,072	2451.6	− 2586	−134.4	× 28 / 117	−32.2
11	43,073	2524.6	− 2628	−103.4	× 63 / 117	−55.7
Sum, rounded to a whole point						−103

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	43,191	2456.3	− 2552	−95.7	× 12 / 88	−13.1
8	43,193	2484.7	− 2586	−101.3	× 20 / 88	−23
11	43,194	2527.7	− 2628	−100.3	× 56 / 88	−63.8
Sum, rounded to a whole point						−100

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	42,917	2420.5	− 2485	−64.5	× 11 / 85	−8.3
7	42,920	2470.2	− 2567	−96.8	× 19 / 85	−21.6
8	42,921	2447.4	− 2586	−138.6	× 17 / 85	−27.7
11	42,922	2512.0	− 2628	−116	× 38 / 85	−51.9
Sum, rounded to a whole point						−110

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
7	42,930	2470.3	− 2567	−96.7	× 21 / 81	−25.1
8	42,931	2457.6	− 2586	−128.4	× 25 / 81	−39.6
11	42,932	2493.0	− 2628	−135	× 35 / 81	−58.3
Sum, rounded to a whole point						−123

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	42,757	2439.1	− 2552	−112.9	× 14 / 80	−19.8
8	42,759	2423.3	− 2586	−162.7	× 23 / 80	−46.8
11	42,760	2480.1	− 2628	−147.9	× 43 / 80	−79.5
Sum, rounded to a whole point						−146

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	42,512	2418.9	− 2552	−133.1	× 12 / 83	−19.2
7	42,513	2462.0	− 2567	−105	× 15 / 83	−19
8	42,514	2440.9	− 2586	−145.1	× 17 / 83	−29.7
11	42,515	2482.8	− 2628	−145.2	× 39 / 83	−68.2
Sum, rounded to a whole point						−136

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −120, −107, −92, −103, −100, −110, −123, −146, −136 → −115.2
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 13 · 2016→2017: 15 · 2017→2018: 11 · 2018→2019: 3 · 2019→2022: 10 · 2022→2023: 13 · 2023→2024: 23 · 2024→2025: 10 → average 12.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 12.3 × 2.66 = 32.7. Upper limit −82.5, lower limit −147.9.

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.