Golden Eagle Charter: math

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	91,982	2381.8	− 2436	−54.2	× 14 / 197	−3.9
4	91,985	2423.3	− 2485	−61.7	× 27 / 197	−8.5
5	91,986	2484.0	− 2528	−44	× 19 / 197	−4.2
6	91,989	2474.9	− 2552	−77.1	× 28 / 197	−11
7	91,990	2494.3	− 2567	−72.7	× 29 / 197	−10.7
8	91,993	2481.7	− 2586	−104.3	× 48 / 197	−25.4
11	91,994	2549.8	− 2628	−78.2	× 32 / 197	−12.7
Sum, rounded to a whole point						−76

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	85,405	2388.6	− 2436	−47.4	× 28 / 234	−5.7
4	85,407	2409.2	− 2485	−75.8	× 27 / 234	−8.7
5	85,409	2461.6	− 2528	−66.4	× 26 / 234	−7.4
6	85,411	2482.5	− 2552	−69.5	× 30 / 234	−8.9
7	85,412	2515.9	− 2567	−51.1	× 39 / 234	−8.5
8	85,414	2533.8	− 2586	−52.2	× 43 / 234	−9.6
11	85,417	2541.8	− 2628	−86.2	× 41 / 234	−15.1
Sum, rounded to a whole point						−64

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	87,782	2431.6	− 2436	−4.4	× 20 / 223	−0.4
4	87,783	2446.1	− 2485	−38.9	× 26 / 223	−4.5
5	87,785	2443.4	− 2528	−84.6	× 27 / 223	−10.2
6	87,788	2450.2	− 2552	−101.8	× 34 / 223	−15.5
7	87,790	2506.3	− 2567	−60.7	× 35 / 223	−9.5
8	87,792	2517.9	− 2586	−68.1	× 47 / 223	−14.4
11	87,793	2518.9	− 2628	−109.1	× 34 / 223	−16.6
Sum, rounded to a whole point						−71

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	88,013	2420.0	− 2436	−16	× 27 / 277	−1.6
4	88,014	2471.5	− 2485	−13.5	× 25 / 277	−1.2
5	88,017	2485.4	− 2528	−42.6	× 30 / 277	−4.6
6	88,018	2466.7	− 2552	−85.3	× 44 / 277	−13.5
7	88,021	2497.3	− 2567	−69.7	× 52 / 277	−13.1
8	88,022	2502.1	− 2586	−83.9	× 47 / 277	−14.2
11	88,025	2530.7	− 2628	−97.3	× 52 / 277	−18.3
Sum, rounded to a whole point						−67

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	88,637	2393.0	− 2436	−43	× 32 / 263	−5.2
4	88,638	2442.2	− 2485	−42.8	× 26 / 263	−4.2
5	88,639	2487.0	− 2528	−41	× 31 / 263	−4.8
6	88,640	2485.9	− 2552	−66.1	× 37 / 263	−9.3
7	88,641	2483.7	− 2567	−83.3	× 49 / 263	−15.5
8	88,642	2484.2	− 2586	−101.8	× 50 / 263	−19.4
11	88,643	2546.6	− 2628	−81.4	× 38 / 263	−11.8
Sum, rounded to a whole point						−70

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	88,922	2388.9	− 2436	−47.1	× 33 / 268	−5.8
4	88,923	2414.8	− 2485	−70.2	× 33 / 268	−8.6
5	88,924	2396.3	− 2528	−131.7	× 29 / 268	−14.3
6	88,925	2463.1	− 2552	−88.9	× 42 / 268	−13.9
7	88,926	2488.0	− 2567	−79	× 42 / 268	−12.4
8	88,927	2474.7	− 2586	−111.3	× 39 / 268	−16.2
11	88,928	2503.4	− 2628	−124.6	× 50 / 268	−23.2
Sum, rounded to a whole point						−94

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	88,807	2404.2	− 2436	−31.8	× 25 / 233	−3.4
4	88,808	2424.4	− 2485	−60.6	× 31 / 233	−8.1
5	88,809	2436.2	− 2528	−91.8	× 30 / 233	−11.8
6	88,810	2429.0	− 2552	−123	× 27 / 233	−14.3
7	88,811	2500.7	− 2567	−66.3	× 37 / 233	−10.5
8	88,812	2502.5	− 2586	−83.5	× 40 / 233	−14.3
11	88,813	2542.0	− 2628	−86	× 43 / 233	−15.9
Sum, rounded to a whole point						−78

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	88,790	2405.6	− 2436	−30.4	× 32 / 233	−4.2
4	88,791	2441.3	− 2485	−43.7	× 30 / 233	−5.6
5	88,792	2457.7	− 2528	−70.3	× 30 / 233	−9.1
6	88,793	2471.5	− 2552	−80.5	× 32 / 233	−11.1
7	88,794	2467.9	− 2567	−99.1	× 29 / 233	−12.3
8	88,795	2503.0	− 2586	−83	× 36 / 233	−12.8
11	88,796	2547.7	− 2628	−80.3	× 44 / 233	−15.2
Sum, rounded to a whole point						−70

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	88,482	2387.8	− 2436	−48.2	× 28 / 253	−5.3
4	88,483	2433.1	− 2485	−51.9	× 28 / 253	−5.7
5	88,484	2451.6	− 2528	−76.4	× 37 / 253	−11.2
6	88,485	2462.7	− 2552	−89.3	× 38 / 253	−13.4
7	88,486	2475.5	− 2567	−91.5	× 36 / 253	−13
8	88,487	2478.0	− 2586	−108	× 38 / 253	−16.2
11	88,488	2505.0	− 2628	−123	× 48 / 253	−23.3
Sum, rounded to a whole point						−88

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −76, −64, −71, −67, −70, −94, −78, −70, −88 → −75.3
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 12 · 2016→2017: 7 · 2017→2018: 4 · 2018→2019: 3 · 2019→2022: 24 · 2022→2023: 16 · 2023→2024: 8 · 2024→2025: 18 → average 11.5
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 11.5 × 2.66 = 30.6. Upper limit −44.7, lower limit −105.9.

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.