Hardy Brown College Prep: 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	67,743	2383.5	− 2432	−48.5	× 54 / 143	−18.3
4	67,745	2425.9	− 2473	−47.1	× 35 / 143	−11.5
5	67,747	2451.5	− 2502	−50.5	× 24 / 143	−8.5
6	67,749	2424.3	− 2531	−106.7	× 15 / 143	−11.2
7	67,751	2475.8	− 2552	−76.2	× 15 / 143	−8
Sum, rounded to a whole point						−58

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	62,763	2380.0	− 2432	−52	× 42 / 138	−15.8
4	62,766	2443.1	− 2473	−29.9	× 40 / 138	−8.7
5	62,768	2501.5	− 2502	−0.5	× 23 / 138	−0.1
6	62,770	2487.3	− 2531	−43.7	× 22 / 138	−7
8	62,774	2526.5	− 2567	−40.5	× 11 / 138	−3.2
Sum, rounded to a whole point						−35

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	64,558	2378.1	− 2432	−53.9	× 50 / 161	−16.7
4	64,559	2438.0	− 2473	−35	× 39 / 161	−8.5
5	64,562	2490.7	− 2502	−11.3	× 27 / 161	−1.9
6	64,564	2480.3	− 2531	−50.7	× 18 / 161	−5.7
7	64,566	2547.5	− 2552	−4.5	× 16 / 161	−0.4
8	64,567	2482.9	− 2567	−84.1	× 11 / 161	−5.7
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	64,651	2398.3	− 2432	−33.7	× 48 / 130	−12.4
4	64,652	2467.1	− 2473	−5.9	× 37 / 130	−1.7
5	64,655	2482.7	− 2502	−19.3	× 23 / 130	−3.4
6	64,656	2518.1	− 2531	−12.9	× 22 / 130	−2.2
Sum, rounded to a whole point						−20

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	65,014	2430.4	− 2432	−1.6	× 32 / 124	−0.4
4	65,015	2452.8	− 2473	−20.2	× 35 / 124	−5.7
5	65,016	2545.3	− 2502	43.3	× 24 / 124	8.4
6	65,017	2544.0	− 2531	13	× 18 / 124	1.9
7	65,018	2571.2	− 2552	19.2	× 15 / 124	2.3
Sum, rounded to a whole point						6

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	63,615	2392.1	− 2432	−39.9	× 46 / 203	−9
4	63,616	2444.2	− 2473	−28.8	× 48 / 203	−6.8
5	63,617	2501.8	− 2502	−0.2	× 34 / 203	0
6	63,618	2482.9	− 2531	−48.1	× 25 / 203	−5.9
7	63,619	2549.1	− 2552	−2.9	× 26 / 203	−0.4
8	63,620	2539.7	− 2567	−27.3	× 24 / 203	−3.2
Sum, rounded to a whole point						−25

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	65,095	2371.1	− 2432	−60.9	× 39 / 170	−14
4	65,096	2465.1	− 2473	−7.9	× 33 / 170	−1.5
5	65,097	2529.1	− 2502	27.1	× 36 / 170	5.7
6	65,098	2527.0	− 2531	−4	× 22 / 170	−0.5
7	65,099	2508.0	− 2552	−44	× 20 / 170	−5.2
8	65,100	2537.6	− 2567	−29.4	× 20 / 170	−3.5
Sum, rounded to a whole point						−19

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	65,090	2392.0	− 2432	−40	× 36 / 154	−9.4
4	65,091	2424.8	− 2473	−48.2	× 37 / 154	−11.6
5	65,092	2494.9	− 2502	−7.1	× 28 / 154	−1.3
6	65,093	2523.6	− 2531	−7.4	× 23 / 154	−1.1
7	65,094	2584.1	− 2552	32.1	× 16 / 154	3.3
8	65,095	2581.5	− 2567	14.5	× 14 / 154	1.3
Sum, rounded to a whole point						−19

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	65,056	2359.9	− 2432	−72.1	× 29 / 153	−13.7
4	65,057	2418.3	− 2473	−54.7	× 30 / 153	−10.7
5	65,058	2478.9	− 2502	−23.1	× 34 / 153	−5.1
6	65,059	2490.7	− 2531	−40.3	× 25 / 153	−6.6
7	65,060	2497.7	− 2552	−54.3	× 18 / 153	−6.4
8	65,061	2531.6	− 2567	−35.4	× 17 / 153	−3.9
Sum, rounded to a whole point						−46

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	64,814	2394.6	− 2432	−37.4	× 36 / 148	−9.1
4	64,815	2409.2	− 2473	−63.8	× 19 / 148	−8.2
5	64,816	2494.4	− 2502	−7.6	× 30 / 148	−1.5
6	64,817	2492.7	− 2531	−38.3	× 24 / 148	−6.2
7	64,818	2530.9	− 2552	−21.1	× 23 / 148	−3.3
8	64,819	2537.9	− 2567	−29.1	× 16 / 148	−3.1
Sum, rounded to a whole point						−31

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −58, −35, −39, −20, 6, −25, −19, −19, −46, −31 → −28.6
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 23 · 2016→2017: 4 · 2017→2018: 19 · 2018→2019: 26 · 2019→2021: 31 · 2021→2022: 6 · 2022→2023: 0 · 2023→2024: 27 · 2024→2025: 15 → average 16.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 16.8 × 2.66 = 44.7. Upper limit 16.1, lower limit −73.3.

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.