Los Olivos 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	85,167	2439.8	− 2436	3.8	× 16 / 135	0.5
4	85,170	2459.8	− 2485	−25.2	× 11 / 135	−2.1
5	85,171	2557.4	− 2528	29.4	× 17 / 135	3.7
6	85,173	2579.8	− 2552	27.8	× 18 / 135	3.7
7	85,176	2577.9	− 2567	10.9	× 33 / 135	2.7
8	85,177	2604.2	− 2586	18.2	× 40 / 135	5.4
Sum, rounded to a whole point						14

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	78,991	2470.2	− 2436	34.2	× 20 / 127	5.4
4	78,993	2462.0	− 2485	−23	× 17 / 127	−3.1
5	78,995	2544.8	− 2528	16.8	× 14 / 127	1.9
6	78,996	2573.9	− 2552	21.9	× 12 / 127	2.1
7	78,998	2600.0	− 2567	33	× 31 / 127	8.1
8	79,001	2588.1	− 2586	2.1	× 33 / 127	0.5
Sum, rounded to a whole point						15

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,147	2472.1	− 2436	36.1	× 15 / 106	5.1
4	81,150	2511.3	− 2485	26.3	× 19 / 106	4.7
5	81,151	2512.0	− 2528	−16	× 18 / 106	−2.7
6	81,154	2549.4	− 2552	−2.6	× 15 / 106	−0.4
7	81,156	2597.1	− 2567	30.1	× 14 / 106	4
8	81,157	2602.8	− 2586	16.8	× 25 / 106	4
Sum, rounded to a whole point						15

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,296	2474.1	− 2436	38.1	× 17 / 101	6.4
4	81,299	2485.6	− 2485	0.6	× 19 / 101	0.1
5	81,300	2554.0	− 2528	26	× 21 / 101	5.4
6	81,303	2533.4	− 2552	−18.6	× 15 / 101	−2.8
7	81,304	2601.2	− 2567	34.2	× 16 / 101	5.4
8	81,307	2644.5	− 2586	58.5	× 13 / 101	7.5
Sum, rounded to a whole point						22

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,832	2510.3	− 2436	74.3	× 12 / 111	8
4	81,833	2511.0	− 2485	26	× 21 / 111	4.9
5	81,834	2518.3	− 2528	−9.7	× 23 / 111	−2
6	81,835	2556.9	− 2552	4.9	× 20 / 111	0.9
7	81,836	2590.9	− 2567	23.9	× 19 / 111	4.1
8	81,837	2639.1	− 2586	53.1	× 16 / 111	7.7
Sum, rounded to a whole point						24

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,192	2482.1	− 2436	46.1	× 16 / 97	7.6
4	80,193	2504.8	− 2485	19.8	× 16 / 97	3.3
5	80,194	2564.1	− 2528	36.1	× 17 / 97	6.3
6	80,195	2521.2	− 2552	−30.8	× 15 / 97	−4.8
7	80,196	2595.7	− 2567	28.7	× 18 / 97	5.3
8	80,197	2636.6	− 2586	50.6	× 15 / 97	7.8
Sum, rounded to a whole point						26

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,053	2484.8	− 2436	48.8	× 12 / 101	5.8
4	82,054	2512.8	− 2485	27.8	× 16 / 101	4.4
5	82,055	2501.7	− 2528	−26.3	× 20 / 101	−5.2
6	82,056	2545.6	− 2552	−6.4	× 13 / 101	−0.8
7	82,057	2547.0	− 2567	−20	× 21 / 101	−4.2
8	82,058	2619.6	− 2586	33.6	× 19 / 101	6.3
Sum, rounded to a whole point						6

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,013	2466.1	− 2436	30.1	× 12 / 79	4.6
5	82,015	2502.9	− 2528	−25.1	× 15 / 79	−4.8
6	82,016	2488.1	− 2552	−63.9	× 18 / 79	−14.6
7	82,017	2556.4	− 2567	−10.6	× 13 / 79	−1.7
8	82,018	2532.3	− 2586	−53.7	× 21 / 79	−14.3
Sum, rounded to a whole point						−31

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,025	2451.8	− 2436	15.8	× 16 / 75	3.4
4	82,026	2512.4	− 2485	27.4	× 14 / 75	5.1
6	82,028	2525.1	− 2552	−26.9	× 13 / 75	−4.7
7	82,029	2523.5	− 2567	−43.5	× 19 / 75	−11
8	82,030	2529.5	− 2586	−56.5	× 13 / 75	−9.8
Sum, rounded to a whole point						−17

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,697	2450.4	− 2436	14.4	× 22 / 85	3.7
4	81,698	2489.8	− 2485	4.8	× 16 / 85	0.9
5	81,699	2524.4	− 2528	−3.6	× 12 / 85	−0.5
7	81,701	2573.6	− 2567	6.6	× 17 / 85	1.3
8	81,702	2559.9	− 2586	−26.1	× 18 / 85	−5.5
Sum, rounded to a whole point						0

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,619	2446.6	− 2436	10.6	× 20 / 86	2.5
4	81,620	2529.1	− 2485	44.1	× 23 / 86	11.8
5	81,621	2530.6	− 2528	2.6	× 14 / 86	0.4
6	81,622	2562.6	− 2552	10.6	× 15 / 86	1.8
8	81,624	2571.1	− 2586	−14.9	× 14 / 86	−2.4
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. 14, 15, 15, 22, 24, 26, 6, −31, −17, 0, 14 → 8
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 1 · 2016→2017: 0 · 2017→2018: 7 · 2018→2019: 2 · 2019→2021: 2 · 2021→2022: 20 · 2022→2023: 37 · 2023→2024: 14 · 2024→2025: 17 · 2025→2026: 14 → average 11.4
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 11.4 × 2.66 = 30.3. Upper limit 38.3, lower limit −22.3.

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.

Los Olivos Elementary