Greenleaf 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	2,484	2362.6	− 2432	−69.4	× 71 / 368	−13.4
4	2,486	2418.6	− 2473	−54.4	× 75 / 368	−11.1
5	2,488	2451.3	− 2502	−50.7	× 69 / 368	−9.5
6	2,490	2465.5	− 2531	−65.5	× 58 / 368	−10.3
7	2,492	2501.5	− 2552	−50.5	× 53 / 368	−7.3
8	2,494	2552.0	− 2567	−15	× 42 / 368	−1.7
Sum, rounded to a whole point						−53

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,168	2362.2	− 2432	−69.8	× 68 / 365	−13
4	2,171	2379.2	− 2473	−93.8	× 73 / 365	−18.8
5	2,172	2456.8	− 2502	−45.2	× 73 / 365	−9
6	2,175	2495.0	− 2531	−36	× 55 / 365	−5.4
7	2,176	2547.3	− 2552	−4.7	× 51 / 365	−0.7
8	2,178	2563.0	− 2567	−4	× 45 / 365	−0.5
Sum, rounded to a whole point						−47

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,229	2381.0	− 2432	−51	× 78 / 374	−10.6
4	2,231	2400.4	− 2473	−72.6	× 70 / 374	−13.6
5	2,232	2456.9	− 2502	−45.1	× 68 / 374	−8.2
6	2,235	2502.3	− 2531	−28.7	× 59 / 374	−4.5
7	2,237	2515.7	− 2552	−36.3	× 52 / 374	−5
8	2,239	2594.0	− 2567	27	× 47 / 374	3.4
Sum, rounded to a whole point						−39

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,219	2383.7	− 2432	−48.3	× 70 / 391	−8.6
4	2,221	2442.6	− 2473	−30.4	× 82 / 391	−6.4
5	2,223	2459.4	− 2502	−42.6	× 75 / 391	−8.2
6	2,225	2499.5	− 2531	−31.5	× 53 / 391	−4.3
7	2,227	2539.9	− 2552	−12.1	× 62 / 391	−1.9
8	2,229	2574.1	− 2567	7.1	× 49 / 391	0.9
Sum, rounded to a whole point						−28

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,224	2374.2	− 2432	−57.8	× 72 / 389	−10.7
4	2,225	2436.2	− 2473	−36.8	× 72 / 389	−6.8
5	2,226	2447.0	− 2502	−55	× 78 / 389	−11
6	2,227	2467.1	− 2531	−63.9	× 64 / 389	−10.5
7	2,228	2538.8	− 2552	−13.2	× 45 / 389	−1.5
8	2,229	2545.2	− 2567	−21.8	× 58 / 389	−3.3
Sum, rounded to a whole point						−44

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,182	2361.6	− 2432	−70.4	× 63 / 356	−12.5
4	2,183	2386.3	− 2473	−86.7	× 63 / 356	−15.3
5	2,184	2416.1	− 2502	−85.9	× 69 / 356	−16.6
6	2,185	2457.0	− 2531	−74	× 55 / 356	−11.4
7	2,186	2485.3	− 2552	−66.7	× 52 / 356	−9.7
8	2,187	2490.8	− 2567	−76.2	× 54 / 356	−11.6
Sum, rounded to a whole point						−77

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,134	2341.7	− 2432	−90.3	× 63 / 368	−15.5
4	2,135	2394.8	− 2473	−78.2	× 64 / 368	−13.6
5	2,136	2428.6	− 2502	−73.4	× 66 / 368	−13.2
6	2,137	2444.9	− 2531	−86.1	× 60 / 368	−14
7	2,138	2523.0	− 2552	−29	× 58 / 368	−4.6
8	2,139	2476.8	− 2567	−90.2	× 57 / 368	−14
Sum, rounded to a whole point						−75

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,102	2323.2	− 2432	−108.8	× 67 / 370	−19.7
4	2,103	2363.9	− 2473	−109.1	× 59 / 370	−17.4
5	2,104	2433.0	− 2502	−69	× 68 / 370	−12.7
6	2,105	2487.3	− 2531	−43.7	× 60 / 370	−7.1
7	2,106	2467.4	− 2552	−84.6	× 57 / 370	−13
8	2,107	2532.5	− 2567	−34.5	× 59 / 370	−5.5
Sum, rounded to a whole point						−75

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,076	2347.4	− 2432	−84.6	× 67 / 370	−15.3
4	2,077	2373.6	− 2473	−99.4	× 68 / 370	−18.3
5	2,078	2401.4	− 2502	−100.6	× 61 / 370	−16.6
6	2,079	2485.3	− 2531	−45.7	× 59 / 370	−7.3
7	2,080	2497.4	− 2552	−54.6	× 58 / 370	−8.6
8	2,081	2488.5	− 2567	−78.5	× 57 / 370	−12.1
Sum, rounded to a whole point						−78

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −53, −47, −39, −28, −44, −77, −75, −75, −78 → −57.3
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 6 · 2016→2017: 8 · 2017→2018: 11 · 2018→2019: 16 · 2019→2022: 33 · 2022→2023: 2 · 2023→2024: 0 · 2024→2025: 3 → average 9.9
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 9.9 × 2.66 = 26.3. Upper limit −31, lower limit −83.6.

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.