Glenfeliz Boulevard 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	30,521	2348.5	− 2432	−83.5	× 42 / 175	−20
4	30,524	2407.7	− 2473	−65.3	× 49 / 175	−18.3
5	30,525	2461.1	− 2502	−40.9	× 47 / 175	−11
6	30,528	2494.9	− 2531	−36.1	× 37 / 175	−7.6
Sum, rounded to a whole point						−57

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	28,740	2392.9	− 2432	−39.1	× 47 / 164	−11.2
4	28,742	2409.0	− 2473	−64	× 40 / 164	−15.6
5	28,744	2443.0	− 2502	−59	× 47 / 164	−16.9
6	28,746	2454.0	− 2531	−77	× 30 / 164	−14.1
Sum, rounded to a whole point						−58

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	29,305	2381.7	− 2432	−50.3	× 43 / 158	−13.7
4	29,307	2452.1	− 2473	−20.9	× 39 / 158	−5.2
5	29,309	2463.8	− 2502	−38.2	× 44 / 158	−10.6
6	29,310	2469.4	− 2531	−61.6	× 32 / 158	−12.5
Sum, rounded to a whole point						−42

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	29,354	2407.5	− 2432	−24.5	× 32 / 152	−5.2
4	29,355	2436.2	− 2473	−36.8	× 44 / 152	−10.7
5	29,358	2484.7	− 2502	−17.3	× 41 / 152	−4.7
6	29,359	2493.3	− 2531	−37.7	× 35 / 152	−8.7
Sum, rounded to a whole point						−29

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	29,525	2407.6	− 2432	−24.4	× 40 / 141	−6.9
4	29,526	2458.7	− 2473	−14.3	× 33 / 141	−3.3
5	29,527	2491.0	− 2502	−11	× 40 / 141	−3.1
6	29,528	2521.8	− 2531	−9.2	× 28 / 141	−1.8
Sum, rounded to a whole point						−15

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	29,560	2411.0	− 2432	−21	× 28 / 107	−5.5
4	29,561	2477.7	− 2473	4.7	× 36 / 107	1.6
5	29,562	2488.6	− 2502	−13.4	× 18 / 107	−2.3
6	29,563	2532.2	− 2531	1.2	× 25 / 107	0.3
Sum, rounded to a whole point						−6

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	29,617	2380.0	− 2432	−52	× 26 / 118	−11.5
4	29,618	2453.0	− 2473	−20	× 34 / 118	−5.8
5	29,619	2496.4	− 2502	−5.6	× 40 / 118	−1.9
6	29,620	2519.2	− 2531	−11.8	× 18 / 118	−1.8
Sum, rounded to a whole point						−21

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	29,483	2413.7	− 2432	−18.3	× 16 / 98	−3
4	29,484	2399.5	− 2473	−73.5	× 26 / 98	−19.5
5	29,485	2514.4	− 2502	12.4	× 30 / 98	3.8
6	29,486	2507.8	− 2531	−23.2	× 26 / 98	−6.2
Sum, rounded to a whole point						−25

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	29,346	2389.9	− 2432	−42.1	× 20 / 85	−9.9
4	29,347	2512.3	− 2473	39.3	× 16 / 85	7.4
5	29,348	2507.9	− 2502	5.9	× 27 / 85	1.9
6	29,349	2591.2	− 2531	60.2	× 22 / 85	15.6
Sum, rounded to a whole point						15

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −57, −58, −42, −29, −15, −6, −21, −25, 15 → −26.4
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 1 · 2016→2017: 16 · 2017→2018: 13 · 2018→2019: 14 · 2019→2022: 9 · 2022→2023: 15 · 2023→2024: 4 · 2024→2025: 40 → average 14
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 14 × 2.66 = 37.2. Upper limit 10.8, lower limit −63.6.

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.