Sierra Vista K-8: math

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.

Measured against the grade bars

The state's math test uses one scale for every grade, so a score means the same thing in grade 3 as in grade 8.

3rd The average 3rd grader scores 22 points under the grade 3 bar. 2414 vs. 2436.
4th The average 4th grader meets the grade 4 bar. 2487 vs. 2485.
5th The average 5th grader scores just under the grade 4 bar. 2484 vs. 2485. The 5th-grade bar is 2528.
6th The average 6th grader scores 11 points under the grade 5 bar. 2517 vs. 2528. The 6th-grade bar is 2552.
7th The average 7th grader scores 21 points under the grade 5 bar. 2507 vs. 2528. The 7th-grade bar is 2567.
8th The average 8th grader scores just under the grade 6 bar. 2550 vs. 2552. The 8th-grade bar is 2586.

2026 results. "Meets standard" is the state's mark for being on track for that grade.

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.

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	89,159	2395.9	− 2436	−40.1	× 48 / 283	−6.8
4	89,161	2451.3	− 2485	−33.7	× 60 / 283	−7.1
5	89,162	2488.6	− 2528	−39.4	× 54 / 283	−7.5
6	89,165	2509.6	− 2552	−42.4	× 52 / 283	−7.8
7	89,166	2528.3	− 2567	−38.7	× 69 / 283	−9.4
Sum, rounded to a whole point						−39

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	89,363	2433.2	− 2436	−2.8	× 46 / 394	−0.3
4	89,364	2433.7	− 2485	−51.3	× 58 / 394	−7.6
5	89,367	2484.1	− 2528	−43.9	× 57 / 394	−6.4
6	89,368	2532.5	− 2552	−19.5	× 62 / 394	−3.1
7	89,371	2534.7	− 2567	−32.3	× 93 / 394	−7.6
8	89,372	2526.8	− 2586	−59.2	× 78 / 394	−11.7
Sum, rounded to a whole point						−37

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	89,976	2431.4	− 2436	−4.6	× 46 / 426	−0.5
4	89,977	2489.4	− 2485	4.4	× 63 / 426	0.7
5	89,978	2466.1	− 2528	−61.9	× 61 / 426	−8.9
6	89,979	2534.3	− 2552	−17.7	× 61 / 426	−2.5
7	89,980	2540.4	− 2567	−26.6	× 101 / 426	−6.3
8	89,981	2503.2	− 2586	−82.8	× 94 / 426	−18.3
Sum, rounded to a whole point						−36

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,248	2441.3	− 2436	5.3	× 47 / 428	0.6
4	90,249	2500.0	− 2485	15	× 55 / 428	1.9
5	90,250	2489.1	− 2528	−38.9	× 63 / 428	−5.7
6	90,251	2505.7	− 2552	−46.3	× 61 / 428	−6.6
7	90,252	2515.2	− 2567	−51.8	× 107 / 428	−13
8	90,253	2486.0	− 2586	−100	× 95 / 428	−22.2
Sum, rounded to a whole point						−45

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,138	2435.0	− 2436	−1	× 48 / 456	−0.1
4	90,139	2503.4	− 2485	18.4	× 62 / 456	2.5
5	90,140	2497.8	− 2528	−30.2	× 64 / 456	−4.2
6	90,141	2517.4	− 2552	−34.6	× 64 / 456	−4.9
7	90,142	2518.8	− 2567	−48.2	× 113 / 456	−11.9
8	90,143	2529.1	− 2586	−56.9	× 105 / 456	−13.1
Sum, rounded to a whole point						−32

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,085	2436.5	− 2436	0.5	× 50 / 453	0.1
4	90,086	2486.4	− 2485	1.4	× 52 / 453	0.2
5	90,087	2479.5	− 2528	−48.5	× 62 / 453	−6.6
6	90,088	2529.0	− 2552	−23	× 67 / 453	−3.4
7	90,089	2484.1	− 2567	−82.9	× 116 / 453	−21.2
8	90,090	2552.8	− 2586	−33.2	× 106 / 453	−7.8
Sum, rounded to a whole point						−39

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	89,773	2448.5	− 2436	12.5	× 51 / 451	1.4
4	89,774	2492.6	− 2485	7.6	× 61 / 451	1
5	89,775	2492.3	− 2528	−35.7	× 60 / 451	−4.7
6	89,776	2511.9	− 2552	−40.1	× 65 / 451	−5.8
7	89,777	2515.8	− 2567	−51.2	× 107 / 451	−12.1
8	89,778	2525.8	− 2586	−60.2	× 107 / 451	−14.3
Sum, rounded to a whole point						−35

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	89,466	2413.7	− 2436	−22.3	× 50 / 460	−2.4
4	89,467	2486.8	− 2485	1.8	× 65 / 460	0.3
5	89,468	2484.3	− 2528	−43.7	× 64 / 460	−6.1
6	89,469	2517.3	− 2552	−34.7	× 62 / 460	−4.7
7	89,470	2507.0	− 2567	−60	× 118 / 460	−15.4
8	89,471	2549.5	− 2586	−36.5	× 101 / 460	−8
Sum, rounded to a whole point						−36

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −39, −37, −36, −45, −32, −39, −35, −36 → −37.4
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2017→2018: 2 · 2018→2019: 1 · 2019→2022: 9 · 2022→2023: 13 · 2023→2024: 7 · 2024→2025: 4 · 2025→2026: 1 → average 5.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 5.3 × 2.66 = 14.1. Upper limit −23.3, lower limit −51.5.

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