Cabrillo 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	82,667	2408.0	− 2436	−28	× 251 / 1658	−4.2
4	82,668	2458.5	− 2485	−26.5	× 237 / 1658	−3.8
5	82,671	2498.7	− 2528	−29.3	× 248 / 1658	−4.4
6	82,672	2498.8	− 2552	−53.2	× 265 / 1658	−8.5
7	82,675	2512.3	− 2567	−54.7	× 247 / 1658	−8.1
8	82,676	2519.8	− 2586	−66.2	× 207 / 1658	−8.3
11	82,679	2549.4	− 2628	−78.6	× 203 / 1658	−9.6
Sum, rounded to a whole point						−47

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	76,652	2415.7	− 2436	−20.3	× 214 / 1673	−2.6
4	76,654	2449.6	− 2485	−35.4	× 248 / 1673	−5.2
5	76,657	2492.6	− 2528	−35.4	× 238 / 1673	−5
6	76,658	2505.7	− 2552	−46.3	× 249 / 1673	−6.9
7	76,661	2518.0	− 2567	−49	× 251 / 1673	−7.4
8	76,662	2539.4	− 2586	−46.6	× 239 / 1673	−6.7
11	76,665	2587.1	− 2628	−40.9	× 234 / 1673	−5.7
Sum, rounded to a whole point						−40

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	78,719	2426.2	− 2436	−9.8	× 242 / 1702	−1.4
4	78,722	2441.4	− 2485	−43.6	× 213 / 1702	−5.5
5	78,724	2478.5	− 2528	−49.5	× 251 / 1702	−7.3
6	78,725	2492.4	− 2552	−59.6	× 253 / 1702	−8.9
7	78,728	2526.1	− 2567	−40.9	× 250 / 1702	−6
8	78,730	2531.2	− 2586	−54.8	× 254 / 1702	−8.2
11	78,732	2573.8	− 2628	−54.2	× 239 / 1702	−7.6
Sum, rounded to a whole point						−45

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	78,867	2429.2	− 2436	−6.8	× 219 / 1652	−0.9
4	78,868	2458.8	− 2485	−26.2	× 236 / 1652	−3.7
5	78,871	2479.1	− 2528	−48.9	× 210 / 1652	−6.2
6	78,872	2470.7	− 2552	−81.3	× 258 / 1652	−12.7
7	78,875	2524.7	− 2567	−42.3	× 259 / 1652	−6.6
8	78,876	2561.6	− 2586	−24.4	× 254 / 1652	−3.8
11	78,879	2593.9	− 2628	−34.1	× 216 / 1652	−4.5
Sum, rounded to a whole point						−38

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,402	2421.6	− 2436	−14.4	× 212 / 1648	−1.9
4	79,403	2458.0	− 2485	−27	× 215 / 1648	−3.5
5	79,404	2496.9	− 2528	−31.1	× 245 / 1648	−4.6
6	79,405	2480.3	− 2552	−71.7	× 214 / 1648	−9.3
7	79,406	2496.5	− 2567	−70.5	× 254 / 1648	−10.9
8	79,407	2535.1	− 2586	−50.9	× 261 / 1648	−8.1
11	79,408	2569.7	− 2628	−58.3	× 247 / 1648	−8.7
Sum, rounded to a whole point						−47

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,648	2427.2	− 2436	−8.8	× 165 / 1341	−1.1
4	79,649	2451.3	− 2485	−33.7	× 183 / 1341	−4.6
5	79,650	2462.3	− 2528	−65.7	× 180 / 1341	−8.8
6	79,651	2480.2	− 2552	−71.8	× 187 / 1341	−10
7	79,652	2501.9	− 2567	−65.1	× 190 / 1341	−9.2
8	79,653	2483.2	− 2586	−102.8	× 220 / 1341	−16.9
11	79,654	2532.5	− 2628	−95.5	× 216 / 1341	−15.4
Sum, rounded to a whole point						−66

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,618	2424.0	− 2436	−12	× 155 / 1324	−1.4
4	79,619	2466.3	− 2485	−18.7	× 170 / 1324	−2.4
5	79,620	2477.3	− 2528	−50.7	× 173 / 1324	−6.6
6	79,621	2482.1	− 2552	−69.9	× 191 / 1324	−10.1
7	79,622	2492.3	− 2567	−74.7	× 179 / 1324	−10.1
8	79,623	2487.1	− 2586	−98.9	× 198 / 1324	−14.8
11	79,624	2541.2	− 2628	−86.8	× 258 / 1324	−16.9
Sum, rounded to a whole point						−62

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,646	2423.9	− 2436	−12.1	× 175 / 1252	−1.7
4	79,647	2439.1	− 2485	−45.9	× 154 / 1252	−5.6
5	79,648	2484.9	− 2528	−43.1	× 169 / 1252	−5.8
6	79,649	2497.5	− 2552	−54.5	× 159 / 1252	−6.9
7	79,650	2509.7	− 2567	−57.3	× 185 / 1252	−8.5
8	79,651	2482.8	− 2586	−103.2	× 190 / 1252	−15.7
11	79,652	2529.7	− 2628	−98.3	× 220 / 1252	−17.3
Sum, rounded to a whole point						−61

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,312	2396.4	− 2436	−39.6	× 158 / 1216	−5.1
4	79,313	2474.9	− 2485	−10.1	× 171 / 1216	−1.4
5	79,314	2471.3	− 2528	−56.7	× 149 / 1216	−6.9
6	79,315	2511.1	− 2552	−40.9	× 169 / 1216	−5.7
7	79,316	2508.9	− 2567	−58.1	× 158 / 1216	−7.5
8	79,317	2511.4	− 2586	−74.6	× 184 / 1216	−11.3
11	79,318	2516.1	− 2628	−111.9	× 227 / 1216	−20.9
Sum, rounded to a whole point						−59

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,240	2417.3	− 2436	−18.7	× 176 / 1155	−2.8
4	79,241	2449.3	− 2485	−35.7	× 150 / 1155	−4.6
5	79,242	2494.5	− 2528	−33.5	× 163 / 1155	−4.7
6	79,243	2497.5	− 2552	−54.5	× 144 / 1155	−6.8
7	79,244	2525.3	− 2567	−41.7	× 176 / 1155	−6.4
8	79,245	2510.7	− 2586	−75.3	× 159 / 1155	−10.4
11	79,246	2543.1	− 2628	−84.9	× 187 / 1155	−13.7
Sum, rounded to a whole point						−49

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −47, −40, −45, −38, −47, −66, −62, −61, −59, −49 → −51.4
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 7 · 2016→2017: 5 · 2017→2018: 7 · 2018→2019: 9 · 2019→2022: 19 · 2022→2023: 4 · 2023→2024: 1 · 2024→2025: 2 · 2025→2026: 10 → average 7.1
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 7.1 × 2.66 = 18.9. Upper limit −32.5, lower limit −70.3.

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.

Cabrillo Unified