Oak Grove Union Elementary: english

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	94,543	2457.2	− 2432	25.2	× 70 / 598	2.9
4	94,544	2491.9	− 2473	18.9	× 73 / 598	2.3
5	94,547	2559.6	− 2502	57.6	× 65 / 598	6.3
6	94,549	2539.8	− 2531	8.8	× 102 / 598	1.5
7	94,551	2564.3	− 2552	12.3	× 147 / 598	3
8	94,552	2581.6	− 2567	14.6	× 141 / 598	3.4
Sum, rounded to a whole point						19

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	87,789	2450.5	− 2432	18.5	× 71 / 609	2.2
4	87,791	2517.3	− 2473	44.3	× 74 / 609	5.4
5	87,794	2558.2	− 2502	56.2	× 71 / 609	6.6
6	87,796	2553.2	− 2531	22.2	× 114 / 609	4.2
7	87,797	2583.2	− 2552	31.2	× 131 / 609	6.7
8	87,799	2571.6	− 2567	4.6	× 148 / 609	1.1
Sum, rounded to a whole point						26

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,313	2428.8	− 2432	−3.2	× 63 / 597	−0.3
4	90,315	2489.0	− 2473	16	× 73 / 597	2
5	90,316	2564.3	− 2502	62.3	× 83 / 597	8.7
6	90,318	2547.2	− 2531	16.2	× 111 / 597	3
7	90,321	2576.4	− 2552	24.4	× 148 / 597	6
8	90,322	2597.2	− 2567	30.2	× 119 / 597	6
Sum, rounded to a whole point						25

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,518	2443.5	− 2432	11.5	× 62 / 614	1.2
4	90,520	2502.7	− 2473	29.7	× 67 / 614	3.2
5	90,522	2543.1	− 2502	41.1	× 75 / 614	5
6	90,524	2558.2	− 2531	27.2	× 108 / 614	4.8
7	90,526	2564.8	− 2552	12.8	× 145 / 614	3
8	90,528	2552.6	− 2567	−14.4	× 157 / 614	−3.7
Sum, rounded to a whole point						14

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,133	2458.9	− 2432	26.9	× 81 / 622	3.5
4	91,134	2494.3	− 2473	21.3	× 64 / 622	2.2
5	91,135	2564.3	− 2502	62.3	× 72 / 622	7.2
6	91,136	2525.1	− 2531	−5.9	× 106 / 622	−1
7	91,137	2586.1	− 2552	34.1	× 155 / 622	8.5
8	91,138	2554.4	− 2567	−12.6	× 144 / 622	−2.9
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	91,391	2458.8	− 2432	26.8	× 62 / 600	2.8
4	91,392	2479.4	− 2473	6.4	× 63 / 600	0.7
5	91,393	2547.6	− 2502	45.6	× 72 / 600	5.5
6	91,394	2533.2	− 2531	2.2	× 116 / 600	0.4
7	91,395	2553.4	− 2552	1.4	× 145 / 600	0.3
8	91,396	2554.6	− 2567	−12.4	× 142 / 600	−2.9
Sum, rounded to a whole point						7

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,279	2455.7	− 2432	23.7	× 64 / 592	2.6
4	91,280	2490.3	− 2473	17.3	× 60 / 592	1.8
5	91,281	2531.9	− 2502	29.9	× 62 / 592	3.1
6	91,282	2527.3	− 2531	−3.7	× 117 / 592	−0.7
7	91,283	2568.9	− 2552	16.9	× 150 / 592	4.3
8	91,284	2531.0	− 2567	−36	× 139 / 592	−8.5
Sum, rounded to a whole point						3

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,224	2454.1	− 2432	22.1	× 65 / 582	2.5
4	91,225	2498.3	− 2473	25.3	× 66 / 582	2.9
5	91,226	2548.0	− 2502	46	× 67 / 582	5.3
6	91,227	2536.5	− 2531	5.5	× 88 / 582	0.8
7	91,228	2555.8	− 2552	3.8	× 152 / 582	1
8	91,229	2597.8	− 2567	30.8	× 144 / 582	7.6
Sum, rounded to a whole point						20

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,928	2451.8	− 2432	19.8	× 61 / 569	2.1
4	90,929	2488.9	− 2473	15.9	× 67 / 569	1.9
5	90,930	2548.6	− 2502	46.6	× 70 / 569	5.7
6	90,931	2525.9	− 2531	−5.1	× 83 / 569	−0.7
7	90,932	2553.1	− 2552	1.1	× 135 / 569	0.3
8	90,933	2576.6	− 2567	9.6	× 153 / 569	2.6
Sum, rounded to a whole point						12

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,583	2460.8	− 2432	28.8	× 61 / 564	3.1
4	90,584	2470.7	− 2473	−2.3	× 63 / 564	−0.3
5	90,585	2540.0	− 2502	38	× 70 / 564	4.7
6	90,586	2519.2	− 2531	−11.8	× 91 / 564	−1.9
7	90,587	2546.9	− 2552	−5.1	× 141 / 564	−1.3
8	90,588	2569.7	− 2567	2.7	× 138 / 564	0.7
Sum, rounded to a whole point						5

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. 19, 26, 25, 14, 17, 7, 3, 20, 12, 5 → 14.8
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 7 · 2016→2017: 1 · 2017→2018: 11 · 2018→2019: 3 · 2019→2022: 10 · 2022→2023: 4 · 2023→2024: 17 · 2024→2025: 8 · 2025→2026: 7 → average 7.6
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 7.6 × 2.66 = 20.2. Upper limit 35, lower limit −5.4.

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 — 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.

Charter schools in Oak Grove Union Elementary

K–8 schools

Oak Grove Elementary/Willowside Middle