Adams 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	85,503	2423.9	− 2432	−8.1	× 78 / 295	−2.1
4	85,506	2449.9	− 2473	−23.1	× 79 / 295	−6.2
5	85,507	2480.8	− 2502	−21.2	× 76 / 295	−5.5
6	85,510	2507.7	− 2531	−23.3	× 62 / 295	−4.9
Sum, rounded to a whole point						−19

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,317	2464.1	− 2432	32.1	× 73 / 292	8
4	79,318	2470.6	− 2473	−2.4	× 73 / 292	−0.6
5	79,321	2516.9	− 2502	14.9	× 73 / 292	3.7
6	79,322	2511.8	− 2531	−19.2	× 73 / 292	−4.8
Sum, rounded to a whole point						6

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,486	2459.3	− 2432	27.3	× 81 / 283	7.8
4	81,487	2492.7	− 2473	19.7	× 68 / 283	4.7
5	81,490	2524.1	− 2502	22.1	× 69 / 283	5.4
6	81,491	2533.0	− 2531	2	× 65 / 283	0.5
Sum, rounded to a whole point						18

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,677	2455.5	− 2432	23.5	× 82 / 313	6.2
4	81,678	2455.2	− 2473	−17.8	× 86 / 313	−4.9
5	81,681	2531.3	− 2502	29.3	× 74 / 313	6.9
6	81,682	2532.7	− 2531	1.7	× 71 / 313	0.4
Sum, rounded to a whole point						9

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,191	2430.4	− 2432	−1.6	× 70 / 307	−0.4
4	82,192	2490.2	− 2473	17.2	× 82 / 307	4.6
5	82,193	2506.9	− 2502	4.9	× 87 / 307	1.4
6	82,194	2553.9	− 2531	22.9	× 68 / 307	5.1
Sum, rounded to a whole point						11

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,398	2397.5	− 2432	−34.5	× 80 / 296	−9.3
4	82,399	2436.6	− 2473	−36.4	× 73 / 296	−9
5	82,400	2491.2	− 2502	−10.8	× 75 / 296	−2.7
6	82,401	2510.1	− 2531	−20.9	× 68 / 296	−4.8
Sum, rounded to a whole point						−26

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,364	2436.1	− 2432	4.1	× 70 / 293	1
4	82,365	2465.8	− 2473	−7.2	× 77 / 293	−1.9
5	82,366	2512.5	− 2502	10.5	× 74 / 293	2.7
6	82,367	2548.2	− 2531	17.2	× 72 / 293	4.2
Sum, rounded to a whole point						6

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,378	2417.4	− 2432	−14.6	× 67 / 287	−3.4
4	82,379	2485.3	− 2473	12.3	× 68 / 287	2.9
5	82,380	2502.4	− 2502	0.4	× 81 / 287	0.1
6	82,381	2532.9	− 2531	1.9	× 71 / 287	0.5
Sum, rounded to a whole point						0

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,056	2423.9	− 2432	−8.1	× 58 / 268	−1.8
4	82,057	2476.5	− 2473	3.5	× 66 / 268	0.9
5	82,058	2511.0	− 2502	9	× 66 / 268	2.2
6	82,059	2542.3	− 2531	11.3	× 78 / 268	3.3
Sum, rounded to a whole point						5

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −19, 6, 18, 9, 11, −26, 6, 0, 5 → 1.1
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 25 · 2016→2017: 12 · 2017→2018: 9 · 2018→2019: 2 · 2019→2022: 37 · 2022→2023: 32 · 2023→2024: 6 · 2024→2025: 5 → average 16
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 16 × 2.66 = 42.6. Upper limit 43.7, lower limit −41.5.

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