Heritage Peak Charter: 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	63,140	2376.9	− 2432	−55.1	× 42 / 512	−4.5
4	63,142	2408.4	− 2473	−64.6	× 52 / 512	−6.6
5	63,145	2447.6	− 2502	−54.4	× 42 / 512	−4.5
6	63,147	2464.1	− 2531	−66.9	× 50 / 512	−6.5
7	63,148	2508.8	− 2552	−43.2	× 81 / 512	−6.8
8	63,151	2537.3	− 2567	−29.7	× 102 / 512	−5.9
11	63,153	2555.0	− 2583	−28	× 143 / 512	−7.8
Sum, rounded to a whole point						−43

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	58,570	2404.7	− 2432	−27.3	× 44 / 557	−2.2
4	58,571	2415.9	− 2473	−57.1	× 62 / 557	−6.4
5	58,574	2462.5	− 2502	−39.5	× 64 / 557	−4.5
6	58,576	2473.3	− 2531	−57.7	× 53 / 557	−5.5
7	58,578	2506.9	− 2552	−45.1	× 84 / 557	−6.8
8	58,580	2538.0	− 2567	−29	× 97 / 557	−5.1
11	58,581	2572.2	− 2583	−10.8	× 153 / 557	−3
Sum, rounded to a whole point						−33

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	60,268	2397.0	− 2432	−35	× 54 / 604	−3.1
4	60,271	2454.8	− 2473	−18.2	× 58 / 604	−1.7
5	60,272	2458.1	− 2502	−43.9	× 66 / 604	−4.8
6	60,274	2487.0	− 2531	−44	× 70 / 604	−5.1
7	60,276	2515.4	− 2552	−36.6	× 97 / 604	−5.9
8	60,278	2541.7	− 2567	−25.3	× 95 / 604	−4
11	60,281	2565.4	− 2583	−17.6	× 164 / 604	−4.8
Sum, rounded to a whole point						−29

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	60,394	2410.0	− 2432	−22	× 53 / 539	−2.2
4	60,395	2445.7	− 2473	−27.3	× 54 / 539	−2.7
5	60,398	2470.9	− 2502	−31.1	× 71 / 539	−4.1
6	60,399	2464.0	− 2531	−67	× 75 / 539	−9.3
7	60,402	2520.0	− 2552	−32	× 93 / 539	−5.5
8	60,403	2529.7	− 2567	−37.3	× 99 / 539	−6.9
11	60,405	2573.1	− 2583	−9.9	× 94 / 539	−1.7
Sum, rounded to a whole point						−32

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	60,644	2419.5	− 2432	−12.5	× 54 / 535	−1.3
4	60,645	2447.0	− 2473	−26	× 60 / 535	−2.9
5	60,646	2475.1	− 2502	−26.9	× 53 / 535	−2.7
6	60,647	2505.0	− 2531	−26	× 75 / 535	−3.6
7	60,648	2509.8	− 2552	−42.2	× 87 / 535	−6.9
8	60,649	2529.5	− 2567	−37.5	× 101 / 535	−7.1
11	60,650	2544.7	− 2583	−38.3	× 105 / 535	−7.5
Sum, rounded to a whole point						−32

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	60,738	2419.4	− 2432	−12.6	× 61 / 522	−1.5
4	60,739	2421.1	− 2473	−51.9	× 61 / 522	−6.1
5	60,740	2475.4	− 2502	−26.6	× 83 / 522	−4.2
6	60,741	2511.0	− 2531	−20	× 72 / 522	−2.8
7	60,742	2533.4	− 2552	−18.6	× 84 / 522	−3
8	60,743	2558.0	− 2567	−9	× 72 / 522	−1.2
11	60,744	2595.0	− 2583	12	× 89 / 522	2
Sum, rounded to a whole point						−17

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	60,683	2394.2	− 2432	−37.8	× 71 / 552	−4.9
4	60,684	2441.5	− 2473	−31.5	× 62 / 552	−3.5
5	60,685	2473.1	− 2502	−28.9	× 68 / 552	−3.6
6	60,686	2520.1	− 2531	−10.9	× 83 / 552	−1.6
7	60,687	2546.5	− 2552	−5.5	× 85 / 552	−0.8
8	60,688	2549.8	− 2567	−17.2	× 98 / 552	−3.1
11	60,689	2567.6	− 2583	−15.4	× 85 / 552	−2.4
Sum, rounded to a whole point						−20

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	60,630	2419.0	− 2432	−13	× 70 / 572	−1.6
4	60,631	2445.5	− 2473	−27.5	× 76 / 572	−3.7
5	60,632	2497.6	− 2502	−4.4	× 64 / 572	−0.5
6	60,633	2523.5	− 2531	−7.5	× 77 / 572	−1
7	60,634	2537.1	− 2552	−14.9	× 109 / 572	−2.8
8	60,635	2576.0	− 2567	9	× 79 / 572	1.2
11	60,636	2598.8	− 2583	15.8	× 97 / 572	2.7
Sum, rounded to a whole point						−6

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	60,383	2404.0	− 2432	−28	× 84 / 595	−4
4	60,384	2463.8	− 2473	−9.2	× 84 / 595	−1.3
5	60,385	2498.0	− 2502	−4	× 76 / 595	−0.5
6	60,386	2526.9	− 2531	−4.1	× 67 / 595	−0.5
7	60,387	2548.8	− 2552	−3.2	× 89 / 595	−0.5
8	60,388	2555.9	− 2567	−11.1	× 114 / 595	−2.1
11	60,389	2601.5	− 2583	18.5	× 81 / 595	2.5
Sum, rounded to a whole point						−6

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −43, −33, −29, −32, −32, −17, −20, −6, −6 → −24.2
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 10 · 2016→2017: 4 · 2017→2018: 3 · 2018→2019: 0 · 2019→2022: 15 · 2022→2023: 3 · 2023→2024: 14 · 2024→2025: 0 → average 6.1
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 6.1 × 2.66 = 16.2. Upper limit −8, lower limit −40.4.

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.