Terry Elementary: english

The shaded band is this school'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	12,111	2411.3	− 2432	−20.7	× 24 / 118	−4.2
4	12,113	2425.3	− 2473	−47.7	× 32 / 118	−12.9
5	12,114	2456.9	− 2502	−45.1	× 30 / 118	−11.5
6	12,117	2514.4	− 2531	−16.6	× 32 / 118	−4.5
Sum, rounded to a whole point						−33

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,126	2419.4	− 2432	−12.6	× 24 / 111	−2.7
4	11,128	2393.0	− 2473	−80	× 30 / 111	−21.6
5	11,131	2462.3	− 2502	−39.7	× 26 / 111	−9.3
6	11,132	2488.3	− 2531	−42.7	× 31 / 111	−11.9
Sum, rounded to a whole point						−46

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,456	2386.7	− 2432	−45.3	× 24 / 110	−9.9
4	11,459	2448.7	− 2473	−24.3	× 31 / 110	−6.8
5	11,460	2457.0	− 2502	−45	× 30 / 110	−12.3
6	11,462	2490.7	− 2531	−40.3	× 25 / 110	−9.2
Sum, rounded to a whole point						−38

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,492	2425.0	− 2432	−7	× 24 / 118	−1.4
4	11,495	2424.6	− 2473	−48.4	× 32 / 118	−13.1
5	11,496	2517.6	− 2502	15.6	× 32 / 118	4.2
6	11,499	2476.2	− 2531	−54.8	× 30 / 118	−13.9
Sum, rounded to a whole point						−24

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,578	2416.5	− 2432	−15.5	× 25 / 108	−3.6
4	11,579	2443.1	− 2473	−29.9	× 23 / 108	−6.4
5	11,580	2476.0	− 2502	−26	× 29 / 108	−7
6	11,581	2534.3	− 2531	3.3	× 31 / 108	0.9
Sum, rounded to a whole point						−16

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,557	2376.4	− 2432	−55.6	× 24 / 106	−12.6
4	11,558	2431.5	− 2473	−41.5	× 26 / 106	−10.2
5	11,559	2415.2	− 2502	−86.8	× 23 / 106	−18.8
6	11,560	2489.1	− 2531	−41.9	× 33 / 106	−13
Sum, rounded to a whole point						−55

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,540	2332.7	− 2432	−99.3	× 50 / 130	−38.2
4	11,541	2346.1	− 2473	−126.9	× 29 / 130	−28.3
5	11,542	2428.8	− 2502	−73.2	× 28 / 130	−15.8
6	11,543	2406.1	− 2531	−124.9	× 23 / 130	−22.1
Sum, rounded to a whole point						−104

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,499	2387.0	− 2432	−45	× 27 / 136	−8.9
4	11,500	2382.0	− 2473	−91	× 49 / 136	−32.8
5	11,501	2425.3	− 2502	−76.7	× 32 / 136	−18
6	11,502	2434.3	− 2531	−96.7	× 28 / 136	−19.9
Sum, rounded to a whole point						−80

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	11,434	2357.5	− 2432	−74.5	× 29 / 134	−16.1
4	11,435	2387.8	− 2473	−85.2	× 31 / 134	−19.7
5	11,436	2444.1	− 2502	−57.9	× 43 / 134	−18.6
6	11,437	2485.8	− 2531	−45.2	× 31 / 134	−10.5
Sum, rounded to a whole point						−65

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −33, −46, −38, −24, −16, −55, −104, −80, −65 → −51.2
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 13 · 2016→2017: 8 · 2017→2018: 14 · 2018→2019: 8 · 2019→2022: 39 · 2022→2023: 49 · 2023→2024: 24 · 2024→2025: 15 → average 21.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 21.3 × 2.66 = 56.7. Upper limit 5.5, lower limit −107.9.

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. From 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.