Mariposa: english · Schoolio

The shaded band is this county'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	42,854	2387.9	− 2432	−44.1	× 151 / 920	−7.2
4	42,856	2427.3	− 2473	−45.7	× 140 / 920	−7
5	42,858	2490.4	− 2502	−11.6	× 116 / 920	−1.5
6	42,860	2511.8	− 2531	−19.2	× 127 / 920	−2.7
7	42,862	2523.6	− 2552	−28.4	× 139 / 920	−4.3
8	42,863	2558.7	− 2567	−8.3	× 151 / 920	−1.4
11	42,866	2577.0	− 2583	−6	× 96 / 920	−0.6
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	39,562	2392.9	− 2432	−39.1	× 124 / 965	−5
4	39,563	2433.8	− 2473	−39.2	× 154 / 965	−6.3
5	39,565	2478.8	− 2502	−23.2	× 149 / 965	−3.6
6	39,568	2518.2	− 2531	−12.8	× 123 / 965	−1.6
7	39,569	2526.7	− 2552	−25.3	× 135 / 965	−3.5
8	39,571	2556.0	− 2567	−11	× 155 / 965	−1.8
11	39,573	2606.4	− 2583	23.4	× 125 / 965	3
Sum, rounded to a whole point						−19

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	40,594	2398.5	− 2432	−33.5	× 135 / 926	−4.9
4	40,596	2440.7	− 2473	−32.3	× 122 / 926	−4.3
5	40,598	2486.3	− 2502	−15.7	× 153 / 926	−2.6
6	40,601	2519.7	− 2531	−11.3	× 141 / 926	−1.7
7	40,603	2549.0	− 2552	−3	× 131 / 926	−0.4
8	40,605	2561.0	− 2567	−6	× 141 / 926	−0.9
11	40,607	2588.7	− 2583	5.7	× 103 / 926	0.6
Sum, rounded to a whole point						−14

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	40,610	2415.8	− 2432	−16.2	× 149 / 978	−2.5
4	40,611	2446.3	− 2473	−26.7	× 138 / 978	−3.8
5	40,614	2482.4	− 2502	−19.6	× 128 / 978	−2.6
6	40,615	2525.6	− 2531	−5.4	× 150 / 978	−0.8
7	40,618	2536.1	− 2552	−15.9	× 138 / 978	−2.2
8	40,619	2585.2	− 2567	18.2	× 127 / 978	2.4
11	40,622	2607.2	− 2583	24.2	× 148 / 978	3.7
Sum, rounded to a whole point						−6

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	40,747	2415.2	− 2432	−16.8	× 130 / 963	−2.3
4	40,748	2456.5	− 2473	−16.5	× 142 / 963	−2.4
5	40,749	2483.9	− 2502	−18.1	× 150 / 963	−2.8
6	40,750	2527.5	− 2531	−3.5	× 128 / 963	−0.5
7	40,751	2550.1	− 2552	−1.9	× 151 / 963	−0.3
8	40,752	2565.5	− 2567	−1.5	× 137 / 963	−0.2
11	40,753	2580.7	− 2583	−2.3	× 125 / 963	−0.3
Sum, rounded to a whole point						−9

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	39,684	2391.8	− 2432	−40.2	× 116 / 788	−5.9
4	39,685	2423.2	− 2473	−49.8	× 122 / 788	−7.7
5	39,686	2463.7	− 2502	−38.3	× 115 / 788	−5.6
6	39,687	2475.5	− 2531	−55.5	× 116 / 788	−8.2
7	39,688	2533.0	− 2552	−19	× 134 / 788	−3.2
8	39,689	2569.6	− 2567	2.6	× 110 / 788	0.4
11	39,690	2596.7	− 2583	13.7	× 75 / 788	1.3
Sum, rounded to a whole point						−29

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	40,492	2402.5	− 2432	−29.5	× 123 / 917	−4
4	40,493	2438.7	− 2473	−34.3	× 127 / 917	−4.8
5	40,494	2466.1	− 2502	−35.9	× 142 / 917	−5.6
6	40,495	2488.1	− 2531	−42.9	× 126 / 917	−5.9
7	40,496	2525.2	− 2552	−26.8	× 130 / 917	−3.8
8	40,497	2546.7	− 2567	−20.3	× 152 / 917	−3.4
11	40,498	2545.6	− 2583	−37.4	× 117 / 917	−4.8
Sum, rounded to a whole point						−32

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	40,535	2397.1	− 2432	−34.9	× 137 / 930	−5.1
4	40,536	2417.4	− 2473	−55.6	× 138 / 930	−8.3
5	40,537	2468.3	− 2502	−33.7	× 135 / 930	−4.9
6	40,538	2470.7	− 2531	−60.3	× 146 / 930	−9.5
7	40,539	2520.9	− 2552	−31.1	× 133 / 930	−4.4
8	40,540	2519.3	− 2567	−47.7	× 132 / 930	−6.8
11	40,541	2565.5	− 2583	−17.5	× 109 / 930	−2.1
Sum, rounded to a whole point						−41

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	40,360	2383.1	− 2432	−48.9	× 138 / 941	−7.2
4	40,361	2437.2	− 2473	−35.8	× 135 / 941	−5.1
5	40,362	2432.7	− 2502	−69.3	× 142 / 941	−10.5
6	40,363	2500.8	− 2531	−30.2	× 134 / 941	−4.3
7	40,364	2516.2	− 2552	−35.8	× 144 / 941	−5.5
8	40,365	2536.8	− 2567	−30.2	× 136 / 941	−4.4
11	40,366	2545.5	− 2583	−37.5	× 112 / 941	−4.5
Sum, rounded to a whole point						−41

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	40,143	2370.1	− 2432	−61.9	× 129 / 940	−8.5
4	40,144	2411.7	− 2473	−61.3	× 138 / 940	−9
5	40,145	2459.6	− 2502	−42.4	× 130 / 940	−5.9
6	40,146	2480.4	− 2531	−50.6	× 127 / 940	−6.8
7	40,147	2542.0	− 2552	−10	× 129 / 940	−1.4
8	40,148	2526.7	− 2567	−40.3	× 141 / 940	−6
11	40,149	2582.9	− 2583	−0.1	× 146 / 940	0
Sum, rounded to a whole point						−38

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	40,051	2369.5	− 2432	−62.5	× 138 / 915	−9.4
4	40,052	2423.3	− 2473	−49.7	× 126 / 915	−6.8
5	40,053	2434.4	− 2502	−67.6	× 142 / 915	−10.5
6	40,054	2475.4	− 2531	−55.6	× 131 / 915	−8
7	40,055	2517.2	− 2552	−34.8	× 132 / 915	−5
8	40,056	2521.2	− 2567	−45.8	× 132 / 915	−6.6
11	40,057	2518.9	− 2583	−64.1	× 114 / 915	−8
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. −25, −19, −14, −6, −9, −29, −32, −41, −41, −38, −54 → −28
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 6 · 2016→2017: 5 · 2017→2018: 8 · 2018→2019: 3 · 2019→2021: 20 · 2021→2022: 3 · 2022→2023: 9 · 2023→2024: 0 · 2024→2025: 3 · 2025→2026: 16 → average 7.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 7.3 × 2.66 = 19.4. Upper limit −8.6, lower limit −47.4.

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 county, 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.

Districts in Mariposa County

Mariposa County Unified