Bethune K-8: 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	75,055	2399.9	− 2432	−32.1	× 70 / 472	−4.8
4	75,057	2443.5	− 2473	−29.5	× 61 / 472	−3.8
5	75,059	2503.9	− 2502	1.9	× 76 / 472	0.3
6	75,061	2529.3	− 2531	−1.7	× 91 / 472	−0.3
7	75,063	2554.1	− 2552	2.1	× 86 / 472	0.4
8	75,065	2559.9	− 2567	−7.1	× 88 / 472	−1.3
Sum, rounded to a whole point						−10

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	69,756	2449.7	− 2432	17.7	× 55 / 452	2.2
4	69,759	2473.9	− 2473	0.9	× 73 / 452	0.1
5	69,761	2499.7	− 2502	−2.3	× 61 / 452	−0.3
6	69,762	2533.7	− 2531	2.7	× 84 / 452	0.5
7	69,764	2572.9	− 2552	20.9	× 92 / 452	4.3
8	69,766	2589.1	− 2567	22.1	× 87 / 452	4.3
Sum, rounded to a whole point						11

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	71,590	2417.7	− 2432	−14.3	× 52 / 428	−1.7
4	71,592	2475.9	− 2473	2.9	× 58 / 428	0.4
5	71,594	2497.1	− 2502	−4.9	× 80 / 428	−0.9
6	71,595	2526.5	− 2531	−4.5	× 75 / 428	−0.8
7	71,597	2587.6	− 2552	35.6	× 74 / 428	6.2
8	71,600	2570.7	− 2567	3.7	× 89 / 428	0.8
Sum, rounded to a whole point						4

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	71,734	2461.7	− 2432	29.7	× 44 / 402	3.3
4	71,737	2441.6	− 2473	−31.4	× 54 / 402	−4.2
5	71,738	2525.4	− 2502	23.4	× 60 / 402	3.5
6	71,741	2526.9	− 2531	−4.1	× 87 / 402	−0.9
7	71,742	2562.3	− 2552	10.3	× 81 / 402	2.1
8	71,745	2606.5	− 2567	39.5	× 76 / 402	7.5
Sum, rounded to a whole point						11

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	72,216	2425.9	− 2432	−6.1	× 52 / 396	−0.8
4	72,217	2480.2	− 2473	7.2	× 49 / 396	0.9
5	72,218	2509.1	− 2502	7.1	× 57 / 396	1
6	72,219	2570.8	− 2531	39.8	× 69 / 396	6.9
7	72,220	2543.1	− 2552	−8.9	× 89 / 396	−2
8	72,221	2584.8	− 2567	17.8	× 80 / 396	3.6
Sum, rounded to a whole point						10

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	72,306	2406.9	− 2432	−25.1	× 55 / 345	−4
4	72,307	2475.8	− 2473	2.8	× 54 / 345	0.4
5	72,308	2503.4	− 2502	1.4	× 59 / 345	0.2
6	72,309	2521.1	− 2531	−9.9	× 59 / 345	−1.7
7	72,310	2573.6	− 2552	21.6	× 54 / 345	3.4
8	72,311	2558.7	− 2567	−8.3	× 64 / 345	−1.5
Sum, rounded to a whole point						−3

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	72,300	2436.5	− 2432	4.5	× 54 / 360	0.7
4	72,301	2454.1	− 2473	−18.9	× 62 / 360	−3.3
5	72,302	2502.6	− 2502	0.6	× 57 / 360	0.1
6	72,303	2528.2	− 2531	−2.8	× 76 / 360	−0.6
7	72,304	2547.7	− 2552	−4.3	× 57 / 360	−0.7
8	72,305	2583.6	− 2567	16.6	× 54 / 360	2.5
Sum, rounded to a whole point						−1

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	72,282	2423.8	− 2432	−8.2	× 33 / 351	−0.8
4	72,283	2462.8	− 2473	−10.2	× 50 / 351	−1.5
5	72,284	2486.5	− 2502	−15.5	× 65 / 351	−2.9
6	72,285	2529.6	− 2531	−1.4	× 71 / 351	−0.3
7	72,286	2566.0	− 2552	14	× 73 / 351	2.9
8	72,287	2591.9	− 2567	24.9	× 59 / 351	4.2
Sum, rounded to a whole point						2

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	71,998	2415.4	− 2432	−16.6	× 51 / 355	−2.4
4	71,999	2489.8	− 2473	16.8	× 31 / 355	1.5
5	72,000	2513.7	− 2502	11.7	× 51 / 355	1.7
6	72,001	2562.8	− 2531	31.8	× 73 / 355	6.5
7	72,002	2564.5	− 2552	12.5	× 71 / 355	2.5
8	72,003	2592.4	− 2567	25.4	× 78 / 355	5.6
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. −10, 11, 4, 11, 10, −3, −1, 2, 15 → 4.3
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 21 · 2016→2017: 7 · 2017→2018: 7 · 2018→2019: 1 · 2019→2022: 13 · 2022→2023: 2 · 2023→2024: 3 · 2024→2025: 13 → average 8.4
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 8.4 × 2.66 = 22.3. Upper limit 26.6, lower limit −18.

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.