Empire Springs 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	66,159	2397.0	− 2432	−35	× 66 / 427	−5.4
4	66,160	2452.7	− 2473	−20.3	× 61 / 427	−2.9
5	66,163	2474.6	− 2502	−27.4	× 75 / 427	−4.8
6	66,165	2513.2	− 2531	−17.8	× 72 / 427	−3
7	66,167	2549.7	− 2552	−2.3	× 71 / 427	−0.4
8	66,168	2576.2	− 2567	9.2	× 65 / 427	1.4
11	66,171	2657.1	− 2583	74.1	× 17 / 427	3
Sum, rounded to a whole point						−12

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	61,351	2418.3	− 2432	−13.7	× 75 / 491	−2.1
4	61,353	2446.2	− 2473	−26.8	× 80 / 491	−4.4
5	61,355	2497.3	− 2502	−4.7	× 78 / 491	−0.7
6	61,358	2522.1	− 2531	−8.9	× 92 / 491	−1.7
7	61,359	2535.5	− 2552	−16.5	× 94 / 491	−3.2
8	61,362	2594.4	− 2567	27.4	× 48 / 491	2.7
11	61,364	2639.6	− 2583	56.6	× 24 / 491	2.8
Sum, rounded to a whole point						−7

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	63,129	2391.9	− 2432	−40.1	× 94 / 533	−7.1
4	63,132	2439.4	− 2473	−33.6	× 81 / 533	−5.1
5	63,133	2464.5	− 2502	−37.5	× 81 / 533	−5.7
6	63,136	2511.9	− 2531	−19.1	× 82 / 533	−2.9
7	63,138	2541.1	− 2552	−10.9	× 90 / 533	−1.8
8	63,140	2554.9	− 2567	−12.1	× 74 / 533	−1.7
11	63,141	2603.5	− 2583	20.5	× 31 / 533	1.2
Sum, rounded to a whole point						−23

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	63,211	2401.7	− 2432	−30.3	× 99 / 654	−4.6
4	63,213	2448.6	− 2473	−24.4	× 116 / 654	−4.3
5	63,215	2483.2	− 2502	−18.8	× 102 / 654	−2.9
6	63,217	2506.0	− 2531	−25	× 104 / 654	−4
7	63,219	2563.0	− 2552	11	× 99 / 654	1.7
8	63,221	2561.0	− 2567	−6	× 104 / 654	−1
11	63,223	2587.6	− 2583	4.6	× 30 / 654	0.2
Sum, rounded to a whole point						−15

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	63,478	2397.0	− 2432	−35	× 90 / 738	−4.3
4	63,479	2451.6	− 2473	−21.4	× 97 / 738	−2.8
5	63,480	2475.9	− 2502	−26.1	× 127 / 738	−4.5
6	63,481	2518.2	− 2531	−12.8	× 123 / 738	−2.1
7	63,482	2536.8	− 2552	−15.2	× 140 / 738	−2.9
8	63,483	2561.7	− 2567	−5.3	× 118 / 738	−0.8
11	63,484	2591.7	− 2583	8.7	× 43 / 738	0.5
Sum, rounded to a whole point						−17

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	63,553	2411.5	− 2432	−20.5	× 134 / 821	−3.3
4	63,554	2437.9	− 2473	−35.1	× 117 / 821	−5
5	63,555	2493.1	− 2502	−8.9	× 128 / 821	−1.4
6	63,556	2503.7	− 2531	−27.3	× 124 / 821	−4.1
7	63,557	2550.7	− 2552	−1.3	× 130 / 821	−0.2
8	63,558	2564.1	− 2567	−2.9	× 133 / 821	−0.5
11	63,559	2611.0	− 2583	28	× 55 / 821	1.9
Sum, rounded to a whole point						−13

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	63,496	2397.4	− 2432	−34.6	× 142 / 886	−5.5
4	63,497	2449.5	− 2473	−23.5	× 119 / 886	−3.2
5	63,498	2475.2	− 2502	−26.8	× 129 / 886	−3.9
6	63,499	2494.8	− 2531	−36.2	× 139 / 886	−5.7
7	63,500	2532.4	− 2552	−19.6	× 155 / 886	−3.4
8	63,501	2553.2	− 2567	−13.8	× 133 / 886	−2.1
11	63,502	2603.7	− 2583	20.7	× 69 / 886	1.6
Sum, rounded to a whole point						−22

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	63,468	2390.6	− 2432	−41.4	× 124 / 881	−5.8
4	63,469	2444.6	− 2473	−28.4	× 126 / 881	−4.1
5	63,470	2495.0	− 2502	−7	× 124 / 881	−1
6	63,471	2519.7	− 2531	−11.3	× 133 / 881	−1.7
7	63,472	2534.9	− 2552	−17.1	× 157 / 881	−3
8	63,473	2568.3	− 2567	1.3	× 143 / 881	0.2
11	63,474	2622.3	− 2583	39.3	× 74 / 881	3.3
Sum, rounded to a whole point						−12

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	63,234	2388.0	− 2432	−44	× 141 / 1043	−5.9
4	63,235	2438.8	− 2473	−34.2	× 126 / 1043	−4.1
5	63,236	2478.6	− 2502	−23.4	× 123 / 1043	−2.8
6	63,237	2505.4	− 2531	−25.6	× 174 / 1043	−4.3
7	63,238	2561.1	− 2552	9.1	× 190 / 1043	1.7
8	63,239	2560.7	− 2567	−6.3	× 189 / 1043	−1.1
11	63,240	2613.1	− 2583	30.1	× 100 / 1043	2.9
Sum, rounded to a whole point						−14

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −12, −7, −23, −15, −17, −13, −22, −12, −14 → −15
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 5 · 2016→2017: 16 · 2017→2018: 8 · 2018→2019: 2 · 2019→2022: 4 · 2022→2023: 9 · 2023→2024: 10 · 2024→2025: 2 → average 7
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 7 × 2.66 = 18.6. Upper limit 3.6, lower limit −33.6.

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.