Inyo: 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	15,370	2392.5	− 2432	−39.5	× 217 / 1525	−5.6
4	15,373	2424.3	− 2473	−48.7	× 192 / 1525	−6.1
5	15,375	2470.4	− 2502	−31.6	× 206 / 1525	−4.3
6	15,376	2479.6	− 2531	−51.4	× 189 / 1525	−6.4
7	15,379	2509.5	− 2552	−42.5	× 164 / 1525	−4.6
8	15,381	2532.4	− 2567	−34.6	× 186 / 1525	−4.2
11	15,382	2509.9	− 2583	−73.1	× 371 / 1525	−17.8
Sum, rounded to a whole point						−49

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	14,391	2409.0	− 2432	−23	× 190 / 1372	−3.2
4	14,392	2432.2	− 2473	−40.8	× 214 / 1372	−6.4
5	14,394	2473.8	− 2502	−28.2	× 198 / 1372	−4.1
6	14,396	2488.8	− 2531	−42.2	× 218 / 1372	−6.7
7	14,399	2529.5	− 2552	−22.5	× 181 / 1372	−3
8	14,400	2530.4	− 2567	−36.6	× 147 / 1372	−3.9
11	14,402	2558.4	− 2583	−24.6	× 224 / 1372	−4
Sum, rounded to a whole point						−31

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	14,721	2397.1	− 2432	−34.9	× 191 / 1425	−4.7
4	14,724	2440.9	− 2473	−32.1	× 190 / 1425	−4.3
5	14,726	2472.3	− 2502	−29.7	× 210 / 1425	−4.4
6	14,728	2490.1	− 2531	−40.9	× 194 / 1425	−5.6
7	14,730	2522.7	− 2552	−29.3	× 218 / 1425	−4.5
8	14,732	2545.2	− 2567	−21.8	× 180 / 1425	−2.8
11	14,734	2553.0	− 2583	−30	× 242 / 1425	−5.1
Sum, rounded to a whole point						−31

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	14,735	2414.7	− 2432	−17.3	× 202 / 1467	−2.4
4	14,738	2451.0	− 2473	−22	× 190 / 1467	−2.8
5	14,739	2485.4	− 2502	−16.6	× 191 / 1467	−2.2
6	14,742	2491.0	− 2531	−40	× 212 / 1467	−5.8
7	14,743	2535.4	− 2552	−16.6	× 196 / 1467	−2.2
8	14,746	2539.5	− 2567	−27.5	× 215 / 1467	−4
11	14,747	2527.7	− 2583	−55.3	× 261 / 1467	−9.8
Sum, rounded to a whole point						−29

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	14,822	2412.2	− 2432	−19.8	× 183 / 1697	−2.1
4	14,823	2452.4	− 2473	−20.6	× 218 / 1697	−2.6
5	14,824	2491.8	− 2502	−10.2	× 192 / 1697	−1.2
6	14,825	2498.2	− 2531	−32.8	× 208 / 1697	−4
7	14,826	2522.6	− 2552	−29.4	× 210 / 1697	−3.6
8	14,827	2551.8	− 2567	−15.2	× 194 / 1697	−1.7
11	14,828	2494.2	− 2583	−88.8	× 492 / 1697	−25.7
Sum, rounded to a whole point						−41

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	14,504	2398.1	− 2432	−33.9	× 194 / 1353	−4.9
4	14,505	2450.4	− 2473	−22.6	× 156 / 1353	−2.6
5	14,506	2484.3	− 2502	−17.7	× 162 / 1353	−2.1
6	14,507	2469.6	− 2531	−61.4	× 201 / 1353	−9.1
7	14,508	2513.9	− 2552	−38.1	× 169 / 1353	−4.8
8	14,509	2527.6	− 2567	−39.4	× 176 / 1353	−5.1
11	14,510	2534.4	− 2583	−48.6	× 295 / 1353	−10.6
Sum, rounded to a whole point						−39

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	14,840	2393.9	− 2432	−38.1	× 187 / 1425	−5
4	14,841	2442.0	− 2473	−31	× 199 / 1425	−4.3
5	14,842	2499.6	− 2502	−2.4	× 159 / 1425	−0.3
6	14,843	2489.8	− 2531	−41.2	× 165 / 1425	−4.8
7	14,844	2514.1	− 2552	−37.9	× 198 / 1425	−5.3
8	14,845	2529.7	− 2567	−37.3	× 172 / 1425	−4.5
11	14,846	2529.2	− 2583	−53.8	× 345 / 1425	−13
Sum, rounded to a whole point						−37

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	14,798	2393.3	− 2432	−38.7	× 212 / 1492	−5.5
4	14,799	2433.8	− 2473	−39.2	× 189 / 1492	−5
5	14,800	2474.7	− 2502	−27.3	× 201 / 1492	−3.7
6	14,801	2496.4	− 2531	−34.6	× 156 / 1492	−3.6
7	14,802	2540.0	− 2552	−12	× 162 / 1492	−1.3
8	14,803	2520.3	− 2567	−46.7	× 193 / 1492	−6
11	14,804	2506.7	− 2583	−76.3	× 379 / 1492	−19.4
Sum, rounded to a whole point						−44

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	14,751	2400.8	− 2432	−31.2	× 185 / 1506	−3.8
4	14,752	2435.9	− 2473	−37.1	× 208 / 1506	−5.1
5	14,753	2480.0	− 2502	−22	× 189 / 1506	−2.8
6	14,754	2474.5	− 2531	−56.5	× 195 / 1506	−7.3
7	14,755	2537.4	− 2552	−14.6	× 150 / 1506	−1.5
8	14,756	2552.7	− 2567	−14.3	× 163 / 1506	−1.5
11	14,757	2482.9	− 2583	−100.1	× 416 / 1506	−27.7
Sum, rounded to a whole point						−50

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	14,715	2411.0	− 2432	−21	× 177 / 1533	−2.4
4	14,716	2437.0	− 2473	−36	× 188 / 1533	−4.4
5	14,717	2486.0	− 2502	−16	× 211 / 1533	−2.2
6	14,718	2481.6	− 2531	−49.4	× 185 / 1533	−6
7	14,719	2502.1	− 2552	−49.9	× 198 / 1533	−6.4
8	14,720	2563.4	− 2567	−3.6	× 156 / 1533	−0.4
11	14,721	2499.2	− 2583	−83.8	× 418 / 1533	−22.8
Sum, rounded to a whole point						−45

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	14,737	2402.3	− 2432	−29.7	× 200 / 1629	−3.6
4	14,738	2423.6	− 2473	−49.4	× 176 / 1629	−5.3
5	14,739	2497.3	− 2502	−4.7	× 181 / 1629	−0.5
6	14,740	2482.9	− 2531	−48.1	× 206 / 1629	−6.1
7	14,741	2526.0	− 2552	−26	× 175 / 1629	−2.8
8	14,742	2529.0	− 2567	−38	× 196 / 1629	−4.6
11	14,743	2502.3	− 2583	−80.7	× 495 / 1629	−24.5
Sum, rounded to a whole point						−47

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −49, −31, −31, −29, −41, −39, −37, −44, −50, −45, −47 → −40.3
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 18 · 2016→2017: 0 · 2017→2018: 2 · 2018→2019: 12 · 2019→2021: 2 · 2021→2022: 2 · 2022→2023: 7 · 2023→2024: 6 · 2024→2025: 5 · 2025→2026: 2 → 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 −25.4, lower limit −55.2.

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.