Saugus Union: 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	37,295	2439.1	− 2436	3.1	× 1450 / 5861	0.8
4	37,297	2474.4	− 2485	−10.6	× 1463 / 5861	−2.6
5	37,299	2511.1	− 2528	−16.9	× 1455 / 5861	−4.2
6	37,301	2546.7	− 2552	−5.3	× 1493 / 5861	−1.4
Sum, rounded to a whole point						−7

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	34,692	2448.3	− 2436	12.3	× 1350 / 5790	2.9
4	34,695	2487.9	− 2485	2.9	× 1465 / 5790	0.7
5	34,697	2511.0	− 2528	−17	× 1502 / 5790	−4.4
6	34,699	2564.0	− 2552	12	× 1473 / 5790	3.1
Sum, rounded to a whole point						2

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,331	2443.9	− 2436	7.9	× 1295 / 5651	1.8
4	35,333	2490.4	− 2485	5.4	× 1359 / 5651	1.3
5	35,334	2508.9	− 2528	−19.1	× 1475 / 5651	−5
6	35,336	2545.4	− 2552	−6.6	× 1522 / 5651	−1.8
Sum, rounded to a whole point						−4

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,343	2453.4	− 2436	17.4	× 1242 / 5522	3.9
4	35,345	2489.5	− 2485	4.5	× 1328 / 5522	1.1
5	35,347	2511.1	− 2528	−16.9	× 1413 / 5522	−4.3
6	35,349	2555.9	− 2552	3.9	× 1539 / 5522	1.1
Sum, rounded to a whole point						2

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,512	2455.4	− 2436	19.4	× 1404 / 5464	5
4	35,513	2498.8	− 2485	13.8	× 1280 / 5464	3.2
5	35,514	2512.5	− 2528	−15.5	× 1337 / 5464	−3.8
6	35,515	2561.5	− 2552	9.5	× 1443 / 5464	2.5
Sum, rounded to a whole point						7

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,399	2467.5	− 2436	31.5	× 1260 / 5257	7.5
4	35,400	2499.9	− 2485	14.9	× 1345 / 5257	3.8
5	35,401	2519.9	− 2528	−8.1	× 1255 / 5257	−1.9
6	35,402	2560.0	− 2552	8	× 1397 / 5257	2.1
Sum, rounded to a whole point						12

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,410	2466.6	− 2436	30.6	× 1251 / 5190	7.4
4	35,411	2511.5	− 2485	26.5	× 1263 / 5190	6.4
5	35,412	2521.6	− 2528	−6.4	× 1364 / 5190	−1.7
6	35,413	2562.1	− 2552	10.1	× 1312 / 5190	2.6
Sum, rounded to a whole point						15

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,268	2472.5	− 2436	36.5	× 1264 / 5219	8.8
4	35,269	2508.8	− 2485	23.8	× 1265 / 5219	5.8
5	35,270	2533.0	− 2528	5	× 1299 / 5219	1.2
6	35,271	2566.3	− 2552	14.3	× 1391 / 5219	3.8
Sum, rounded to a whole point						20

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,119	2474.6	− 2436	38.6	× 1237 / 5130	9.3
4	35,120	2512.0	− 2485	27	× 1285 / 5130	6.8
5	35,121	2540.5	− 2528	12.5	× 1275 / 5130	3.1
6	35,122	2583.2	− 2552	31.2	× 1333 / 5130	8.1
Sum, rounded to a whole point						27

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,113	2473.4	− 2436	37.4	× 1161 / 5033	8.6
4	35,114	2512.0	− 2485	27	× 1259 / 5033	6.8
5	35,115	2538.9	− 2528	10.9	× 1298 / 5033	2.8
6	35,116	2578.1	− 2552	26.1	× 1315 / 5033	6.8
Sum, rounded to a whole point						25

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −7, 2, −4, 2, 7, 12, 15, 20, 27, 25 → 9.9
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 9 · 2016→2017: 6 · 2017→2018: 6 · 2018→2019: 5 · 2019→2022: 5 · 2022→2023: 3 · 2023→2024: 5 · 2024→2025: 7 · 2025→2026: 2 → average 5.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 5.3 × 2.66 = 14.1. Upper limit 24, lower limit −4.2.

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 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.

Saugus Union