Lassen View Elementary: 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 5.

3rd The average 3rd grader meets the grade 3 bar. 2461 vs. 2436.
4th The average 4th grader scores 11 points under the grade 4 bar. 2474 vs. 2485.
5th The average 5th grader scores 43 points under the grade 5 bar. 2485 vs. 2528.

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.

2015 from sb_ca2015_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,934	2414.8	− 2436	−21.2	× 76 / 188	−8.6
4	90,935	2440.3	− 2485	−44.7	× 61 / 188	−14.5
5	90,938	2477.1	− 2528	−50.9	× 51 / 188	−13.8
Sum, rounded to a whole point						−37

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	84,416	2428.2	− 2436	−7.8	× 61 / 193	−2.5
4	84,418	2461.5	− 2485	−23.5	× 71 / 193	−8.6
5	84,420	2477.9	− 2528	−50.1	× 61 / 193	−15.8
Sum, rounded to a whole point						−27

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	86,782	2432.1	− 2436	−3.9	× 69 / 198	−1.4
4	86,784	2448.9	− 2485	−36.1	× 60 / 198	−10.9
5	86,785	2475.2	− 2528	−52.8	× 69 / 198	−18.4
Sum, rounded to a whole point						−31

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	87,049	2439.4	− 2436	3.4	× 55 / 180	1
4	87,052	2468.2	− 2485	−16.8	× 66 / 180	−6.2
5	87,053	2468.9	− 2528	−59.1	× 59 / 180	−19.4
Sum, rounded to a whole point						−24

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	87,667	2419.8	− 2436	−16.2	× 59 / 183	−5.2
4	87,668	2473.3	− 2485	−11.7	× 61 / 183	−3.9
5	87,669	2478.6	− 2528	−49.4	× 63 / 183	−17
Sum, rounded to a whole point						−26

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	85,931	2415.8	− 2436	−20.2	× 57 / 165	−7
4	85,932	2466.6	− 2485	−18.4	× 52 / 165	−5.8
5	85,933	2466.9	− 2528	−61.1	× 56 / 165	−20.7
Sum, rounded to a whole point						−34

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	88,014	2427.2	− 2436	−8.8	× 55 / 177	−2.7
4	88,015	2467.1	− 2485	−17.9	× 65 / 177	−6.6
5	88,016	2481.9	− 2528	−46.1	× 57 / 177	−14.8
Sum, rounded to a whole point						−24

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	87,921	2443.3	− 2436	7.3	× 59 / 175	2.5
4	87,922	2458.4	− 2485	−26.6	× 56 / 175	−8.5
5	87,923	2472.5	− 2528	−55.5	× 60 / 175	−19
Sum, rounded to a whole point						−25

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	87,906	2444.7	− 2436	8.7	× 55 / 170	2.8
4	87,907	2471.0	− 2485	−14	× 62 / 170	−5.1
5	87,908	2503.5	− 2528	−24.5	× 53 / 170	−7.6
Sum, rounded to a whole point						−10

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	87,598	2447.8	− 2436	11.8	× 63 / 177	4.2
4	87,599	2462.8	− 2485	−22.2	× 53 / 177	−6.6
5	87,600	2500.1	− 2528	−27.9	× 61 / 177	−9.6
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	87,313	2460.9	− 2436	24.9	× 64 / 176	9.1
4	87,314	2474.2	− 2485	−10.8	× 57 / 176	−3.5
5	87,315	2485.1	− 2528	−42.9	× 55 / 176	−13.4
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. −37, −27, −31, −24, −26, −34, −24, −25, −10, −12, −8 → −23.5
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 10 · 2016→2017: 4 · 2017→2018: 7 · 2018→2019: 2 · 2019→2021: 8 · 2021→2022: 10 · 2022→2023: 1 · 2023→2024: 15 · 2024→2025: 2 · 2025→2026: 4 → 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 −6.7, lower limit −40.3.

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