Reach Leadership Steam Academy: 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	58,066	2400.4	− 2432	−31.6	× 32 / 61	−16.6
4	58,068	2462.9	− 2473	−10.1	× 29 / 61	−4.8
Sum, rounded to a whole point						−21

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	53,888	2383.3	− 2432	−48.7	× 86 / 145	−28.9
4	53,890	2461.0	− 2473	−12	× 30 / 145	−2.5
5	53,891	2491.8	− 2502	−10.2	× 29 / 145	−2
Sum, rounded to a whole point						−33

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	55,451	2431.3	− 2432	−0.7	× 65 / 196	−0.2
4	55,453	2448.1	− 2473	−24.9	× 74 / 196	−9.4
5	55,455	2467.2	− 2502	−34.8	× 32 / 196	−5.7
6	55,457	2535.0	− 2531	4	× 25 / 196	0.5
Sum, rounded to a whole point						−15

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	55,543	2456.2	− 2432	24.2	× 86 / 249	8.4
4	55,545	2473.1	− 2473	0.1	× 61 / 249	0
5	55,547	2495.6	− 2502	−6.4	× 65 / 249	−1.7
6	55,549	2508.8	− 2531	−22.2	× 37 / 249	−3.3
Sum, rounded to a whole point						3

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	55,798	2434.6	− 2432	2.6	× 86 / 307	0.7
4	55,799	2471.0	− 2473	−2	× 93 / 307	−0.6
5	55,800	2494.5	− 2502	−7.5	× 66 / 307	−1.6
6	55,801	2517.9	− 2531	−13.1	× 62 / 307	−2.6
Sum, rounded to a whole point						−4

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	55,858	2434.4	− 2432	2.4	× 87 / 342	0.6
4	55,859	2476.7	− 2473	3.7	× 87 / 342	0.9
5	55,860	2542.3	− 2502	40.3	× 86 / 342	10.1
6	55,861	2546.4	− 2531	15.4	× 82 / 342	3.7
Sum, rounded to a whole point						15

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	55,811	2408.4	− 2432	−23.6	× 87 / 330	−6.2
4	55,812	2451.0	− 2473	−22	× 89 / 330	−5.9
5	55,813	2506.9	− 2502	4.9	× 80 / 330	1.2
6	55,814	2546.4	− 2531	15.4	× 74 / 330	3.5
Sum, rounded to a whole point						−8

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	55,687	2432.5	− 2432	0.5	× 88 / 358	0.1
4	55,688	2453.7	− 2473	−19.3	× 93 / 358	−5
5	55,689	2483.8	− 2502	−18.2	× 93 / 358	−4.7
6	55,690	2535.8	− 2531	4.8	× 84 / 358	1.1
Sum, rounded to a whole point						−8

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	55,445	2413.8	− 2432	−18.2	× 87 / 371	−4.3
4	55,446	2494.7	− 2473	21.7	× 88 / 371	5.1
5	55,447	2487.1	− 2502	−14.9	× 86 / 371	−3.5
6	55,448	2527.2	− 2531	−3.8	× 90 / 371	−0.9
7	55,449	2585.8	− 2552	33.8	× 20 / 371	1.8
Sum, rounded to a whole point						−2

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −21, −33, −15, 3, −4, 15, −8, −8, −2 → −8.1
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 12 · 2016→2017: 18 · 2017→2018: 18 · 2018→2019: 7 · 2019→2022: 19 · 2022→2023: 23 · 2023→2024: 0 · 2024→2025: 6 → average 12.9
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 12.9 × 2.66 = 34.3. Upper limit 26.2, lower limit −42.4.

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.