Parlier Unified: math

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	11,686	2360.7	− 2436	−75.3	× 316 / 1879	−12.7
4	11,689	2394.8	− 2485	−90.2	× 291 / 1879	−14
5	11,690	2429.8	− 2528	−98.2	× 291 / 1879	−15.2
6	11,693	2433.3	− 2552	−118.7	× 267 / 1879	−16.9
7	11,694	2430.7	− 2567	−136.3	× 248 / 1879	−18
8	11,697	2433.7	− 2586	−152.3	× 253 / 1879	−20.5
11	11,698	2499.7	− 2628	−128.3	× 213 / 1879	−14.5
Sum, rounded to a whole point						−112

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	10,698	2378.0	− 2436	−58	× 225 / 1806	−7.2
4	10,700	2412.7	− 2485	−72.3	× 306 / 1806	−12.3
5	10,703	2445.7	− 2528	−82.3	× 286 / 1806	−13
6	10,704	2434.4	− 2552	−117.6	× 282 / 1806	−18.4
7	10,707	2428.0	− 2567	−139	× 264 / 1806	−20.3
8	10,708	2431.0	− 2586	−155	× 233 / 1806	−20
11	10,710	2497.0	− 2628	−131	× 210 / 1806	−15.2
Sum, rounded to a whole point						−106

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,024	2392.2	− 2436	−43.8	× 250 / 1810	−6
4	11,027	2423.4	− 2485	−61.6	× 233 / 1810	−7.9
5	11,029	2447.9	− 2528	−80.1	× 308 / 1810	−13.6
6	11,030	2427.9	− 2552	−124.1	× 287 / 1810	−19.7
7	11,032	2423.4	− 2567	−143.6	× 263 / 1810	−20.9
8	11,035	2427.8	− 2586	−158.2	× 276 / 1810	−24.1
11	11,037	2492.3	− 2628	−135.7	× 193 / 1810	−14.5
Sum, rounded to a whole point						−107

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,036	2377.6	− 2436	−58.4	× 278 / 1800	−9
4	11,038	2439.5	− 2485	−45.5	× 246 / 1800	−6.2
5	11,040	2451.8	− 2528	−76.2	× 228 / 1800	−9.7
6	11,042	2439.1	− 2552	−112.9	× 308 / 1800	−19.3
7	11,045	2427.7	− 2567	−139.3	× 275 / 1800	−21.3
8	11,046	2423.4	− 2586	−162.6	× 257 / 1800	−23.2
11	11,048	2474.8	− 2628	−153.2	× 208 / 1800	−17.7
Sum, rounded to a whole point						−106

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,114	2387.4	− 2436	−48.6	× 258 / 1804	−7
4	11,115	2425.5	− 2485	−59.5	× 275 / 1804	−9.1
5	11,116	2457.9	− 2528	−70.1	× 246 / 1804	−9.6
6	11,117	2460.1	− 2552	−91.9	× 233 / 1804	−11.9
7	11,118	2423.3	− 2567	−143.7	× 292 / 1804	−23.3
8	11,119	2417.2	− 2586	−168.8	× 267 / 1804	−25
11	11,120	2457.6	− 2628	−170.4	× 233 / 1804	−22
Sum, rounded to a whole point						−108

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	10,962	2325.3	− 2436	−110.7	× 263 / 1598	−18.2
4	10,963	2375.3	− 2485	−109.7	× 290 / 1598	−19.9
5	10,964	2408.5	− 2528	−119.5	× 251 / 1598	−18.8
6	10,965	2407.6	− 2552	−144.4	× 257 / 1598	−23.2
7	10,966	2429.9	− 2567	−137.1	× 189 / 1598	−16.2
8	10,967	2414.4	− 2586	−171.6	× 183 / 1598	−19.7
11	10,968	2464.3	− 2628	−163.7	× 165 / 1598	−16.9
Sum, rounded to a whole point						−133

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,117	2366.1	− 2436	−69.9	× 252 / 1797	−9.8
4	11,118	2394.9	− 2485	−90.1	× 260 / 1797	−13
5	11,119	2425.6	− 2528	−102.4	× 291 / 1797	−16.6
6	11,120	2431.9	− 2552	−120.1	× 259 / 1797	−17.3
7	11,121	2415.7	− 2567	−151.3	× 258 / 1797	−21.7
8	11,122	2439.1	− 2586	−146.9	× 231 / 1797	−18.9
11	11,123	2447.8	− 2628	−180.2	× 246 / 1797	−24.7
Sum, rounded to a whole point						−122

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,104	2385.7	− 2436	−50.3	× 236 / 1834	−6.5
4	11,105	2401.9	− 2485	−83.1	× 254 / 1834	−11.5
5	11,106	2422.4	− 2528	−105.6	× 270 / 1834	−15.5
6	11,107	2433.0	− 2552	−119	× 290 / 1834	−18.8
7	11,108	2412.7	− 2567	−154.3	× 248 / 1834	−20.9
8	11,109	2397.0	− 2586	−189	× 261 / 1834	−26.9
11	11,110	2458.2	− 2628	−169.8	× 275 / 1834	−25.5
Sum, rounded to a whole point						−126

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,067	2388.8	− 2436	−47.2	× 217 / 1696	−6
4	11,068	2410.5	− 2485	−74.5	× 231 / 1696	−10.1
5	11,069	2429.0	− 2528	−99	× 260 / 1696	−15.2
6	11,070	2435.8	− 2552	−116.2	× 268 / 1696	−18.4
7	11,071	2423.6	− 2567	−143.4	× 283 / 1696	−23.9
8	11,072	2423.7	− 2586	−162.3	× 230 / 1696	−22
11	11,073	2447.2	− 2628	−180.8	× 207 / 1696	−22.1
Sum, rounded to a whole point						−118

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,004	2375.4	− 2436	−60.6	× 241 / 1723	−8.5
4	11,005	2405.8	− 2485	−79.2	× 229 / 1723	−10.5
5	11,006	2441.1	− 2528	−86.9	× 232 / 1723	−11.7
6	11,007	2442.2	− 2552	−109.8	× 266 / 1723	−17
7	11,008	2423.3	− 2567	−143.7	× 261 / 1723	−21.8
8	11,009	2413.5	− 2586	−172.5	× 293 / 1723	−29.3
11	11,010	2478.5	− 2628	−149.5	× 201 / 1723	−17.4
Sum, rounded to a whole point						−116

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,032	2387.5	− 2436	−48.5	× 213 / 1689	−6.1
4	11,033	2402.1	− 2485	−82.9	× 240 / 1689	−11.8
5	11,034	2433.9	− 2528	−94.1	× 229 / 1689	−12.8
6	11,035	2451.1	− 2552	−100.9	× 234 / 1689	−14
7	11,036	2433.1	− 2567	−133.9	× 259 / 1689	−20.5
8	11,037	2412.0	− 2586	−174	× 262 / 1689	−27
11	11,038	2449.8	− 2628	−178.2	× 252 / 1689	−26.6
Sum, rounded to a whole point						−119

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −112, −106, −107, −106, −108, −133, −122, −126, −118, −116, −119 → −115.7
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: 1 · 2017→2018: 1 · 2018→2019: 2 · 2019→2021: 25 · 2021→2022: 11 · 2022→2023: 4 · 2023→2024: 8 · 2024→2025: 2 · 2025→2026: 3 → average 6.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 6.3 × 2.66 = 16.8. Upper limit −98.9, lower limit −132.5.

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.

Parlier Unified