Harmony 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	44,860	2373.7	− 2432	−58.3	× 95 / 437	−12.7
4	44,861	2434.3	− 2473	−38.7	× 78 / 437	−6.9
5	44,864	2456.2	− 2502	−45.8	× 56 / 437	−5.9
6	44,865	2504.3	− 2531	−26.7	× 76 / 437	−4.6
7	44,868	2540.1	− 2552	−11.9	× 69 / 437	−1.9
8	44,869	2557.9	− 2567	−9.1	× 63 / 437	−1.3
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	41,588	2410.4	− 2432	−21.6	× 74 / 306	−5.2
4	41,589	2442.2	− 2473	−30.8	× 88 / 306	−8.9
5	41,592	2488.2	− 2502	−13.8	× 70 / 306	−3.2
6	41,593	2539.4	− 2531	8.4	× 74 / 306	2
Sum, rounded to a whole point						−15

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	42,611	2415.7	− 2432	−16.3	× 64 / 300	−3.5
4	42,612	2438.7	− 2473	−34.3	× 75 / 300	−8.6
5	42,615	2453.2	− 2502	−48.8	× 86 / 300	−14
6	42,617	2539.7	− 2531	8.7	× 75 / 300	2.2
Sum, rounded to a whole point						−24

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	42,631	2406.7	− 2432	−25.3	× 105 / 325	−8.2
4	42,634	2457.8	− 2473	−15.2	× 63 / 325	−2.9
5	42,635	2481.4	− 2502	−20.6	× 71 / 325	−4.5
6	42,638	2509.1	− 2531	−21.9	× 86 / 325	−5.8
Sum, rounded to a whole point						−21

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	42,759	2404.7	− 2432	−27.3	× 93 / 328	−7.7
4	42,760	2456.3	− 2473	−16.7	× 104 / 328	−5.3
5	42,761	2492.8	− 2502	−9.2	× 61 / 328	−1.7
6	42,762	2533.4	− 2531	2.4	× 70 / 328	0.5
Sum, rounded to a whole point						−14

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	41,633	2363.9	− 2432	−68.1	× 79 / 339	−15.9
4	41,634	2413.2	− 2473	−59.8	× 82 / 339	−14.5
5	41,635	2461.7	− 2502	−40.3	× 85 / 339	−10.1
6	41,636	2493.2	− 2531	−37.8	× 93 / 339	−10.4
Sum, rounded to a whole point						−51

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	42,508	2404.2	− 2432	−27.8	× 68 / 306	−6.2
4	42,509	2421.0	− 2473	−52	× 74 / 306	−12.6
5	42,510	2456.5	− 2502	−45.5	× 80 / 306	−11.9
6	42,511	2506.3	− 2531	−24.7	× 84 / 306	−6.8
Sum, rounded to a whole point						−37

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	42,529	2406.5	− 2432	−25.5	× 79 / 305	−6.6
4	42,530	2450.3	− 2473	−22.7	× 78 / 305	−5.8
5	42,531	2452.2	− 2502	−49.8	× 71 / 305	−11.6
6	42,532	2482.9	− 2531	−48.1	× 77 / 305	−12.1
Sum, rounded to a whole point						−36

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	42,364	2395.0	− 2432	−37	× 55 / 275	−7.4
4	42,365	2442.9	− 2473	−30.1	× 78 / 275	−8.5
5	42,366	2483.1	− 2502	−18.9	× 73 / 275	−5
6	42,367	2500.8	− 2531	−30.2	× 69 / 275	−7.6
Sum, rounded to a whole point						−29

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	42,123	2457.9	− 2432	25.9	× 64 / 270	6.1
4	42,124	2447.6	− 2473	−25.4	× 56 / 270	−5.3
5	42,125	2494.6	− 2502	−7.4	× 76 / 270	−2.1
6	42,126	2546.5	− 2531	15.5	× 74 / 270	4.2
Sum, rounded to a whole point						3

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −33, −15, −24, −21, −14, −51, −37, −36, −29, 3 → −25.7
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 18 · 2016→2017: 9 · 2017→2018: 3 · 2018→2019: 7 · 2019→2021: 37 · 2021→2022: 14 · 2022→2023: 1 · 2023→2024: 7 · 2024→2025: 32 → average 14.2
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 14.2 × 2.66 = 37.8. Upper limit 12.1, lower limit −63.5.

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.