Hazelton 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	80,812	2347.6	− 2432	−84.4	× 90 / 477	−15.9
4	80,813	2368.1	− 2473	−104.9	× 87 / 477	−19.1
5	80,816	2411.0	− 2502	−91	× 92 / 477	−17.6
6	80,817	2474.9	− 2531	−56.1	× 58 / 477	−6.8
7	80,820	2456.2	− 2552	−95.8	× 84 / 477	−16.9
8	80,821	2509.6	− 2567	−57.4	× 66 / 477	−7.9
Sum, rounded to a whole point						−84

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	74,913	2329.3	− 2432	−102.7	× 89 / 517	−17.7
4	74,915	2398.9	− 2473	−74.1	× 87 / 517	−12.5
5	74,917	2391.6	− 2502	−110.4	× 91 / 517	−19.4
6	74,918	2429.3	− 2531	−101.7	× 85 / 517	−16.7
7	74,920	2480.4	− 2552	−71.6	× 80 / 517	−11.1
8	74,923	2502.5	− 2567	−64.5	× 85 / 517	−10.6
Sum, rounded to a whole point						−88

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	76,922	2363.7	− 2432	−68.3	× 88 / 539	−11.2
4	76,923	2377.7	− 2473	−95.3	× 88 / 539	−15.6
5	76,925	2408.5	− 2502	−93.5	× 93 / 539	−16.1
6	76,928	2437.4	− 2531	−93.6	× 94 / 539	−16.3
7	76,930	2473.5	− 2552	−78.5	× 95 / 539	−13.8
8	76,931	2512.2	− 2567	−54.8	× 81 / 539	−8.2
Sum, rounded to a whole point						−81

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,111	2315.4	− 2432	−116.6	× 76 / 526	−16.8
4	77,112	2399.3	− 2473	−73.7	× 90 / 526	−12.6
5	77,115	2411.8	− 2502	−90.2	× 86 / 526	−14.7
6	77,117	2458.7	− 2531	−72.3	× 93 / 526	−12.8
7	77,118	2467.0	− 2552	−85	× 92 / 526	−14.9
8	77,121	2505.6	− 2567	−61.4	× 89 / 526	−10.4
Sum, rounded to a whole point						−82

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,626	2385.1	− 2432	−46.9	× 84 / 526	−7.5
4	77,627	2368.9	− 2473	−104.1	× 81 / 526	−16
5	77,628	2444.6	− 2502	−57.4	× 92 / 526	−10
6	77,629	2460.0	− 2531	−71	× 88 / 526	−11.9
7	77,630	2491.6	− 2552	−60.4	× 93 / 526	−10.7
8	77,631	2498.8	− 2567	−68.2	× 88 / 526	−11.4
Sum, rounded to a whole point						−68

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,776	2335.4	− 2432	−96.6	× 64 / 413	−15
4	77,777	2399.0	− 2473	−74	× 57 / 413	−10.2
5	77,778	2413.3	− 2502	−88.7	× 79 / 413	−17
6	77,779	2469.7	− 2531	−61.3	× 76 / 413	−11.3
7	77,780	2473.4	− 2552	−78.6	× 52 / 413	−9.9
8	77,781	2520.7	− 2567	−46.3	× 85 / 413	−9.5
Sum, rounded to a whole point						−73

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,768	2330.5	− 2432	−101.5	× 81 / 409	−20.1
4	77,769	2344.9	− 2473	−128.1	× 58 / 409	−18.2
5	77,770	2423.5	− 2502	−78.5	× 54 / 409	−10.4
6	77,771	2432.0	− 2531	−99	× 76 / 409	−18.4
7	77,772	2483.7	− 2552	−68.3	× 87 / 409	−14.5
8	77,773	2464.1	− 2567	−102.9	× 53 / 409	−13.3
Sum, rounded to a whole point						−95

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,786	2340.0	− 2432	−92	× 65 / 408	−14.7
4	77,787	2366.5	− 2473	−106.5	× 81 / 408	−21.1
5	77,788	2411.7	− 2502	−90.3	× 55 / 408	−12.2
6	77,789	2471.3	− 2531	−59.7	× 56 / 408	−8.2
7	77,790	2460.2	− 2552	−91.8	× 72 / 408	−16.2
8	77,791	2511.2	− 2567	−55.8	× 79 / 408	−10.8
Sum, rounded to a whole point						−83

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,448	2330.7	− 2432	−101.3	× 76 / 375	−20.5
4	77,449	2375.0	− 2473	−98	× 60 / 375	−15.7
5	77,450	2398.9	− 2502	−103.1	× 59 / 375	−16.2
6	77,451	2412.2	− 2531	−118.8	× 55 / 375	−17.4
7	77,452	2484.2	− 2552	−67.8	× 56 / 375	−10.1
8	77,453	2488.4	− 2567	−78.6	× 69 / 375	−14.5
Sum, rounded to a whole point						−94

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −84, −88, −81, −82, −68, −73, −95, −83, −94 → −83.1
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 4 · 2016→2017: 7 · 2017→2018: 1 · 2018→2019: 14 · 2019→2022: 5 · 2022→2023: 22 · 2023→2024: 12 · 2024→2025: 11 → average 9.5
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 9.5 × 2.66 = 25.3. Upper limit −57.8, lower limit −108.4.

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.