Vista Verde: math · Schoolio

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	53,138	2487.4	− 2436	51.4	× 119 / 624	9.8
4	53,139	2544.9	− 2485	59.9	× 103 / 624	9.9
5	53,142	2570.6	− 2528	42.6	× 122 / 624	8.3
6	53,143	2607.5	− 2552	55.5	× 103 / 624	9.2
7	53,146	2646.4	− 2567	79.4	× 102 / 624	13
8	53,147	2686.4	− 2586	100.4	× 75 / 624	12.1
Sum, rounded to a whole point						62

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	49,378	2495.9	− 2436	59.9	× 118 / 641	11
4	49,380	2547.6	− 2485	62.6	× 119 / 641	11.6
5	49,382	2576.5	− 2528	48.5	× 100 / 641	7.6
6	49,384	2615.5	− 2552	63.5	× 121 / 641	12
7	49,386	2644.3	− 2567	77.3	× 92 / 641	11.1
8	49,388	2697.5	− 2586	111.5	× 91 / 641	15.8
Sum, rounded to a whole point						69

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	50,741	2496.5	− 2436	60.5	× 118 / 634	11.3
4	50,743	2523.6	− 2485	38.6	× 114 / 634	6.9
5	50,745	2572.0	− 2528	44	× 122 / 634	8.5
6	50,748	2618.0	− 2552	66	× 92 / 634	9.6
7	50,749	2652.0	− 2567	85	× 102 / 634	13.7
8	50,751	2699.5	− 2586	113.5	× 86 / 634	15.4
Sum, rounded to a whole point						65

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	50,777	2501.9	− 2436	65.9	× 115 / 648	11.7
4	50,780	2541.9	− 2485	56.9	× 115 / 648	10.1
5	50,781	2555.5	− 2528	27.5	× 111 / 648	4.7
6	50,784	2627.8	− 2552	75.8	× 121 / 648	14.2
7	50,785	2655.1	− 2567	88.1	× 89 / 648	12.1
8	50,788	2714.8	− 2586	128.8	× 97 / 648	19.3
Sum, rounded to a whole point						72

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	50,987	2513.0	− 2436	77	× 90 / 630	11
4	50,988	2560.1	− 2485	75.1	× 118 / 630	14.1
5	50,989	2561.9	− 2528	33.9	× 122 / 630	6.6
6	50,990	2612.8	− 2552	60.8	× 104 / 630	10
7	50,991	2653.3	− 2567	86.3	× 113 / 630	15.5
8	50,992	2741.5	− 2586	155.5	× 83 / 630	20.5
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	50,913	2510.2	− 2436	74.2	× 90 / 541	12.3
4	50,914	2536.8	− 2485	51.8	× 102 / 541	9.8
5	50,915	2578.5	− 2528	50.5	× 87 / 541	8.1
6	50,916	2615.8	− 2552	63.8	× 85 / 541	10
7	50,917	2656.7	− 2567	89.7	× 95 / 541	15.8
8	50,918	2702.1	− 2586	116.1	× 82 / 541	17.6
Sum, rounded to a whole point						74

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	50,879	2504.0	− 2436	68	× 87 / 549	10.8
4	50,880	2560.3	− 2485	75.3	× 91 / 549	12.5
5	50,881	2557.3	− 2528	29.3	× 111 / 549	5.9
6	50,882	2620.7	− 2552	68.7	× 90 / 549	11.3
7	50,883	2658.8	− 2567	91.8	× 73 / 549	12.2
8	50,884	2706.5	− 2586	120.5	× 97 / 549	21.3
Sum, rounded to a whole point						74

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	50,740	2504.8	− 2436	68.8	× 95 / 542	12.1
4	50,741	2536.0	− 2485	51	× 94 / 542	8.8
5	50,742	2573.0	− 2528	45	× 97 / 542	8.1
6	50,743	2612.8	− 2552	60.8	× 109 / 542	12.2
7	50,744	2668.3	− 2567	101.3	× 78 / 542	14.6
8	50,745	2709.3	− 2586	123.3	× 69 / 542	15.7
Sum, rounded to a whole point						71

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	50,502	2501.8	− 2436	65.8	× 95 / 573	10.9
4	50,503	2533.7	− 2485	48.7	× 97 / 573	8.2
5	50,504	2589.7	− 2528	61.7	× 100 / 573	10.8
6	50,505	2634.4	− 2552	82.4	× 101 / 573	14.5
7	50,506	2655.0	− 2567	88	× 102 / 573	15.7
8	50,507	2714.7	− 2586	128.7	× 78 / 573	17.5
Sum, rounded to a whole point						78

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. 62, 69, 65, 72, 78, 74, 74, 71, 78 → 71.4
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: 4 · 2017→2018: 7 · 2018→2019: 6 · 2019→2022: 4 · 2022→2023: 0 · 2023→2024: 3 · 2024→2025: 7 → average 4.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 4.8 × 2.66 = 12.8. Upper limit 84.2, lower limit 58.6.

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. From 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.