Taft City: math · Schoolio

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	18,037	2408.0	− 2436	−28	× 216 / 1250	−4.8
4	18,039	2426.6	− 2485	−58.4	× 215 / 1250	−10
5	18,041	2439.0	− 2528	−89	× 227 / 1250	−16.2
6	18,043	2484.8	− 2552	−67.2	× 185 / 1250	−9.9
7	18,045	2474.9	− 2567	−92.1	× 208 / 1250	−15.3
8	18,047	2484.0	− 2586	−102	× 199 / 1250	−16.2
Sum, rounded to a whole point						−73

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,041	2412.9	− 2436	−23.1	× 239 / 1324	−4.2
4	17,043	2425.6	− 2485	−59.4	× 228 / 1324	−10.2
5	17,045	2439.0	− 2528	−89	× 211 / 1324	−14.2
6	17,047	2480.8	− 2552	−71.2	× 228 / 1324	−12.3
7	17,049	2476.3	− 2567	−90.7	× 202 / 1324	−13.8
8	17,052	2500.6	− 2586	−85.4	× 216 / 1324	−13.9
Sum, rounded to a whole point						−69

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,362	2427.7	− 2436	−8.3	× 249 / 1401	−1.5
4	17,363	2437.1	− 2485	−47.9	× 244 / 1401	−8.3
5	17,366	2459.0	− 2528	−69	× 241 / 1401	−11.9
6	17,367	2488.7	− 2552	−63.3	× 225 / 1401	−10.2
7	17,370	2467.3	− 2567	−99.7	× 244 / 1401	−17.4
8	17,371	2505.1	− 2586	−80.9	× 198 / 1401	−11.4
Sum, rounded to a whole point						−61

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,387	2436.1	− 2436	0.1	× 244 / 1447	0
4	17,389	2436.1	− 2485	−48.9	× 254 / 1447	−8.6
5	17,391	2471.1	− 2528	−56.9	× 248 / 1447	−9.8
6	17,393	2473.0	− 2552	−79	× 244 / 1447	−13.3
7	17,395	2479.1	− 2567	−87.9	× 222 / 1447	−13.5
8	17,397	2484.0	− 2586	−102	× 235 / 1447	−16.6
Sum, rounded to a whole point						−62

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,531	2423.6	− 2436	−12.4	× 251 / 1476	−2.1
4	17,532	2430.6	− 2485	−54.4	× 254 / 1476	−9.4
5	17,533	2462.0	− 2528	−66	× 249 / 1476	−11.1
6	17,534	2518.9	− 2552	−33.1	× 240 / 1476	−5.4
7	17,535	2468.6	− 2567	−98.4	× 257 / 1476	−17.1
8	17,536	2500.8	− 2586	−85.2	× 225 / 1476	−13
Sum, rounded to a whole point						−58

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,585	2380.0	− 2436	−56	× 256 / 1465	−9.8
4	17,586	2404.8	− 2485	−80.2	× 211 / 1465	−11.6
5	17,587	2420.1	− 2528	−107.9	× 270 / 1465	−19.9
6	17,588	2475.2	− 2552	−76.8	× 244 / 1465	−12.8
7	17,589	2459.3	− 2567	−107.7	× 230 / 1465	−16.9
8	17,590	2455.6	− 2586	−130.4	× 254 / 1465	−22.6
Sum, rounded to a whole point						−94

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,527	2401.1	− 2436	−34.9	× 270 / 1470	−6.4
4	17,528	2419.3	− 2485	−65.7	× 255 / 1470	−11.4
5	17,529	2436.4	− 2528	−91.6	× 206 / 1470	−12.8
6	17,530	2466.8	− 2552	−85.2	× 265 / 1470	−15.4
7	17,531	2460.3	− 2567	−106.7	× 256 / 1470	−18.6
8	17,532	2458.0	− 2586	−128	× 218 / 1470	−19
Sum, rounded to a whole point						−84

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,477	2398.3	− 2436	−37.7	× 260 / 1502	−6.5
4	17,478	2414.9	− 2485	−70.1	× 268 / 1502	−12.5
5	17,479	2439.6	− 2528	−88.4	× 252 / 1502	−14.8
6	17,480	2484.3	− 2552	−67.7	× 208 / 1502	−9.4
7	17,481	2445.2	− 2567	−121.8	× 262 / 1502	−21.2
8	17,482	2465.0	− 2586	−121	× 252 / 1502	−20.3
Sum, rounded to a whole point						−85

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,471	2402.2	− 2436	−33.8	× 251 / 1480	−5.7
4	17,472	2429.2	− 2485	−55.8	× 248 / 1480	−9.4
5	17,473	2443.1	− 2528	−84.9	× 262 / 1480	−15
6	17,474	2466.1	− 2552	−85.9	× 247 / 1480	−14.3
7	17,475	2463.3	− 2567	−103.7	× 200 / 1480	−14
8	17,476	2459.8	− 2586	−126.2	× 272 / 1480	−23.2
Sum, rounded to a whole point						−82

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,476	2405.1	− 2436	−30.9	× 247 / 1447	−5.3
4	17,477	2419.7	− 2485	−65.3	× 248 / 1447	−11.2
5	17,478	2460.1	− 2528	−67.9	× 245 / 1447	−11.5
6	17,479	2473.3	− 2552	−78.7	× 258 / 1447	−14
7	17,480	2454.1	− 2567	−112.9	× 243 / 1447	−19
8	17,481	2481.6	− 2586	−104.4	× 206 / 1447	−14.9
Sum, rounded to a whole point						−76

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −73, −69, −61, −62, −58, −94, −84, −85, −82, −76 → −74.4
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 4 · 2016→2017: 8 · 2017→2018: 1 · 2018→2019: 4 · 2019→2022: 36 · 2022→2023: 10 · 2023→2024: 1 · 2024→2025: 3 · 2025→2026: 6 → average 8.1
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 8.1 × 2.66 = 21.5. Upper limit −52.9, lower limit −95.9.

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 — 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.

Schools in Taft City

Elementary schools

Middle schools

Lincoln Junior High