Elk Hills Elementary: math

The shaded band is this district'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	16,789	2454.0	− 2436	18	× 26 / 143	3.3
4	16,792	2433.9	− 2485	−51.1	× 30 / 143	−10.7
5	16,794	2462.6	− 2528	−65.4	× 23 / 143	−10.5
6	16,796	2430.5	− 2552	−121.5	× 25 / 143	−21.2
7	16,797	2431.2	− 2567	−135.8	× 18 / 143	−17.1
8	16,800	2419.0	− 2586	−167	× 21 / 143	−24.5
Sum, rounded to a whole point						−81

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	15,805	2381.9	− 2436	−54.1	× 22 / 126	−9.4
4	15,806	2410.5	− 2485	−74.5	× 21 / 126	−12.4
5	15,808	2452.6	− 2528	−75.4	× 28 / 126	−16.8
6	15,810	2458.3	− 2552	−93.7	× 21 / 126	−15.6
7	15,813	2470.6	− 2567	−96.4	× 20 / 126	−15.3
8	15,814	2453.9	− 2586	−132.1	× 14 / 126	−14.7
Sum, rounded to a whole point						−84

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	16,125	2416.8	− 2436	−19.2	× 20 / 124	−3.1
4	16,128	2386.4	− 2485	−98.6	× 21 / 124	−16.7
5	16,130	2440.7	− 2528	−87.3	× 23 / 124	−16.2
6	16,131	2460.6	− 2552	−91.4	× 25 / 124	−18.4
7	16,134	2495.3	− 2567	−71.7	× 15 / 124	−8.7
8	16,135	2496.0	− 2586	−90	× 20 / 124	−14.5
Sum, rounded to a whole point						−78

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	16,145	2403.4	− 2436	−32.6	× 22 / 127	−5.6
4	16,146	2408.8	− 2485	−76.2	× 22 / 127	−13.2
5	16,149	2421.7	− 2528	−106.3	× 21 / 127	−17.6
6	16,150	2428.7	− 2552	−123.3	× 22 / 127	−21.4
7	16,153	2478.0	− 2567	−89	× 25 / 127	−17.5
8	16,154	2492.2	− 2586	−93.8	× 15 / 127	−11.1
Sum, rounded to a whole point						−86

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	16,277	2425.8	− 2436	−10.2	× 22 / 134	−1.7
4	16,278	2404.3	− 2485	−80.7	× 17 / 134	−10.2
5	16,279	2416.3	− 2528	−111.7	× 23 / 134	−19.2
6	16,280	2456.7	− 2552	−95.3	× 22 / 134	−15.6
7	16,281	2469.5	− 2567	−97.5	× 24 / 134	−17.5
8	16,282	2515.2	− 2586	−70.8	× 26 / 134	−13.7
Sum, rounded to a whole point						−78

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	16,319	2370.8	− 2436	−65.2	× 24 / 115	−13.6
4	16,320	2425.1	− 2485	−59.9	× 20 / 115	−10.4
5	16,321	2462.6	− 2528	−65.4	× 22 / 115	−12.5
6	16,322	2452.1	− 2552	−99.9	× 20 / 115	−17.4
7	16,323	2471.7	− 2567	−95.3	× 16 / 115	−13.3
8	16,324	2477.4	− 2586	−108.6	× 13 / 115	−12.3
Sum, rounded to a whole point						−79

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	16,257	2379.9	− 2436	−56.1	× 20 / 112	−10
4	16,258	2399.3	− 2485	−85.7	× 24 / 112	−18.4
5	16,259	2495.2	− 2528	−32.8	× 16 / 112	−4.7
6	16,260	2465.6	− 2552	−86.4	× 19 / 112	−14.7
7	16,261	2451.4	− 2567	−115.6	× 18 / 112	−18.6
8	16,262	2481.6	− 2586	−104.4	× 15 / 112	−14
Sum, rounded to a whole point						−80

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	16,202	2395.2	− 2436	−40.8	× 18 / 117	−6.3
4	16,203	2422.3	− 2485	−62.7	× 24 / 117	−12.9
5	16,204	2475.1	− 2528	−52.9	× 19 / 117	−8.6
6	16,205	2519.2	− 2552	−32.8	× 19 / 117	−5.3
7	16,206	2477.4	− 2567	−89.6	× 19 / 117	−14.6
8	16,207	2517.6	− 2586	−68.4	× 18 / 117	−10.5
Sum, rounded to a whole point						−58

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	16,189	2379.1	− 2436	−56.9	× 13 / 108	−6.8
4	16,190	2413.7	− 2485	−71.3	× 18 / 108	−11.9
5	16,191	2479.4	− 2528	−48.6	× 23 / 108	−10.4
6	16,192	2528.9	− 2552	−23.1	× 18 / 108	−3.9
7	16,193	2527.9	− 2567	−39.1	× 17 / 108	−6.2
8	16,194	2488.0	− 2586	−98	× 19 / 108	−17.2
Sum, rounded to a whole point						−56

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −81, −84, −78, −86, −78, −79, −80, −58, −56 → −75.6
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 3 · 2016→2017: 6 · 2017→2018: 8 · 2018→2019: 8 · 2019→2022: 1 · 2022→2023: 1 · 2023→2024: 22 · 2024→2025: 2 → average 6.4
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 6.4 × 2.66 = 17. Upper limit −58.6, lower limit −92.6.

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 — for a district, the total across its schools. From 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.

Schools in Elk Hills Elementary

Elk Hills Elementary