Olive Drive Elementary: 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	17,722	2430.3	− 2432	−1.7	× 89 / 342	−0.4
4	17,724	2461.6	− 2473	−11.4	× 79 / 342	−2.6
5	17,726	2532.5	− 2502	30.5	× 77 / 342	6.9
6	17,728	2525.6	− 2531	−5.4	× 97 / 342	−1.5
Sum, rounded to a whole point						2

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	16,729	2421.8	− 2432	−10.2	× 72 / 323	−2.3
4	16,731	2447.2	− 2473	−25.8	× 92 / 323	−7.3
5	16,733	2540.3	− 2502	38.3	× 80 / 323	9.5
6	16,736	2567.2	− 2531	36.2	× 79 / 323	8.9
Sum, rounded to a whole point						9

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,051	2427.3	− 2432	−4.7	× 63 / 327	−0.9
4	17,054	2459.0	− 2473	−14	× 75 / 327	−3.2
5	17,056	2511.4	− 2502	9.4	× 102 / 327	2.9
6	17,058	2562.6	− 2531	31.6	× 87 / 327	8.4
Sum, rounded to a whole point						7

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,070	2439.9	− 2432	7.9	× 78 / 348	1.8
4	17,073	2469.3	− 2473	−3.7	× 69 / 348	−0.7
5	17,074	2522.1	− 2502	20.1	× 94 / 348	5.4
6	17,077	2538.1	− 2531	7.1	× 107 / 348	2.2
Sum, rounded to a whole point						9

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,216	2445.9	− 2432	13.9	× 76 / 335	3.2
4	17,217	2465.5	− 2473	−7.5	× 83 / 335	−1.9
5	17,218	2531.6	− 2502	29.6	× 72 / 335	6.4
6	17,219	2544.0	− 2531	13	× 104 / 335	4
Sum, rounded to a whole point						12

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,266	2416.7	− 2432	−15.3	× 114 / 426	−4.1
4	17,267	2459.1	− 2473	−13.9	× 108 / 426	−3.5
5	17,268	2534.8	− 2502	32.8	× 108 / 426	8.3
6	17,269	2535.4	− 2531	4.4	× 96 / 426	1
Sum, rounded to a whole point						2

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,204	2403.9	− 2432	−28.1	× 95 / 429	−6.2
4	17,205	2451.7	− 2473	−21.3	× 114 / 429	−5.7
5	17,206	2498.1	− 2502	−3.9	× 113 / 429	−1
6	17,207	2551.5	− 2531	20.5	× 107 / 429	5.1
Sum, rounded to a whole point						−8

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,159	2432.4	− 2432	0.4	× 98 / 436	0.1
4	17,160	2463.0	− 2473	−10	× 109 / 436	−2.5
5	17,161	2523.7	− 2502	21.7	× 117 / 436	5.8
6	17,162	2516.6	− 2531	−14.4	× 112 / 436	−3.7
Sum, rounded to a whole point						0

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,152	2441.6	− 2432	9.6	× 118 / 451	2.5
4	17,153	2477.9	− 2473	4.9	× 103 / 451	1.1
5	17,154	2502.5	− 2502	0.5	× 107 / 451	0.1
6	17,155	2548.3	− 2531	17.3	× 123 / 451	4.7
Sum, rounded to a whole point						8

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. 2, 9, 7, 9, 12, 2, −8, 0, 8 → 4.6
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: 2 · 2017→2018: 2 · 2018→2019: 3 · 2019→2022: 10 · 2022→2023: 10 · 2023→2024: 8 · 2024→2025: 8 → average 6.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 6.3 × 2.66 = 16.8. Upper limit 21.4, lower limit −12.2.

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.