Janesville 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 8.

3rd The average 3rd grader scores 31 points under the grade 3 bar. 2405 vs. 2436.
4th The average 4th grader scores 39 points under the grade 4 bar. 2446 vs. 2485.
5th The average 5th grader scores 39 points under the grade 4 bar. 2446 vs. 2485. The 5th-grade bar is 2528.
6th The average 6th grader scores just under the grade 5 bar. 2521 vs. 2528. The 6th-grade bar is 2552.
7th The average 7th grader meets the grade 7 bar. 2567 vs. 2567.
8th The average 8th grader scores 10 points under the grade 7 bar. 2557 vs. 2567. 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.

2015 from sb_ca2015_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	19,780	2372.2	− 2436	−63.8	× 36 / 232	−9.9
4	19,781	2409.1	− 2485	−75.9	× 37 / 232	−12.1
5	19,784	2440.8	− 2528	−87.2	× 39 / 232	−14.7
6	19,785	2489.4	− 2552	−62.6	× 37 / 232	−10
7	19,788	2532.0	− 2567	−35	× 46 / 232	−6.9
8	19,789	2555.8	− 2586	−30.2	× 37 / 232	−4.8
Sum, rounded to a whole point						−58

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	18,790	2415.2	− 2436	−20.8	× 38 / 222	−3.6
4	18,791	2433.3	− 2485	−51.7	× 35 / 222	−8.2
5	18,793	2461.2	− 2528	−66.8	× 33 / 222	−9.9
6	18,796	2506.0	− 2552	−46	× 34 / 222	−7
7	18,798	2531.2	− 2567	−35.8	× 42 / 222	−6.8
8	18,799	2588.3	− 2586	2.3	× 40 / 222	0.4
Sum, rounded to a whole point						−35

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	19,113	2344.0	− 2436	−92	× 36 / 227	−14.6
4	19,114	2448.1	− 2485	−36.9	× 39 / 227	−6.3
5	19,116	2447.7	− 2528	−80.3	× 39 / 227	−13.8
6	19,118	2466.0	− 2552	−86	× 37 / 227	−14
7	19,121	2530.8	− 2567	−36.2	× 39 / 227	−6.2
8	19,123	2574.4	− 2586	−11.6	× 37 / 227	−1.9
Sum, rounded to a whole point						−57

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	19,115	2399.9	− 2436	−36.1	× 36 / 236	−5.5
4	19,116	2416.4	− 2485	−68.6	× 36 / 236	−10.5
5	19,119	2457.4	− 2528	−70.6	× 41 / 236	−12.3
6	19,120	2477.1	− 2552	−74.9	× 41 / 236	−13
7	19,123	2546.8	− 2567	−20.2	× 40 / 236	−3.4
8	19,124	2532.0	− 2586	−54	× 42 / 236	−9.6
Sum, rounded to a whole point						−54

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	19,266	2384.1	− 2436	−51.9	× 39 / 235	−8.6
4	19,267	2456.2	− 2485	−28.8	× 37 / 235	−4.5
5	19,268	2433.4	− 2528	−94.6	× 37 / 235	−14.9
6	19,269	2475.6	− 2552	−76.4	× 48 / 235	−15.6
7	19,270	2529.1	− 2567	−37.9	× 36 / 235	−5.8
8	19,271	2562.0	− 2586	−24	× 38 / 235	−3.9
Sum, rounded to a whole point						−53

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	18,787	2391.8	− 2436	−44.2	× 42 / 218	−8.5
4	18,788	2406.4	− 2485	−78.6	× 37 / 218	−13.3
5	18,789	2432.5	− 2528	−95.5	× 38 / 218	−16.6
6	18,790	2468.9	− 2552	−83.1	× 32 / 218	−12.2
7	18,791	2491.1	− 2567	−75.9	× 39 / 218	−13.6
8	18,792	2553.4	− 2586	−32.6	× 30 / 218	−4.5
Sum, rounded to a whole point						−69

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	19,321	2385.0	− 2436	−51	× 36 / 223	−8.2
4	19,322	2455.8	− 2485	−29.2	× 39 / 223	−5.1
5	19,323	2442.1	− 2528	−85.9	× 41 / 223	−15.8
6	19,324	2475.7	− 2552	−76.3	× 37 / 223	−12.7
7	19,325	2528.2	− 2567	−38.8	× 30 / 223	−5.2
8	19,326	2525.7	− 2586	−60.3	× 40 / 223	−10.8
Sum, rounded to a whole point						−58

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	19,272	2413.0	− 2436	−23	× 34 / 203	−3.9
4	19,273	2431.7	− 2485	−53.3	× 37 / 203	−9.7
5	19,274	2499.6	− 2528	−28.4	× 34 / 203	−4.8
6	19,275	2456.2	− 2552	−95.8	× 35 / 203	−16.5
7	19,276	2538.2	− 2567	−28.8	× 33 / 203	−4.7
8	19,277	2546.2	− 2586	−39.8	× 30 / 203	−5.9
Sum, rounded to a whole point						−45

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	19,216	2377.1	− 2436	−58.9	× 40 / 201	−11.7
4	19,217	2445.6	− 2485	−39.4	× 29 / 201	−5.7
5	19,218	2490.7	− 2528	−37.3	× 35 / 201	−6.5
6	19,219	2501.4	− 2552	−50.6	× 31 / 201	−7.8
7	19,220	2529.7	− 2567	−37.3	× 35 / 201	−6.5
8	19,221	2543.4	− 2586	−42.6	× 31 / 201	−6.6
Sum, rounded to a whole point						−45

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	19,189	2430.1	− 2436	−5.9	× 35 / 206	−1
4	19,190	2446.9	− 2485	−38.1	× 36 / 206	−6.7
5	19,191	2493.2	− 2528	−34.8	× 35 / 206	−5.9
6	19,192	2504.7	− 2552	−47.3	× 36 / 206	−8.3
7	19,193	2545.5	− 2567	−21.5	× 35 / 206	−3.7
8	19,194	2531.9	− 2586	−54.1	× 29 / 206	−7.6
Sum, rounded to a whole point						−33

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	19,218	2405.0	− 2436	−31	× 30 / 195	−4.8
4	19,219	2446.2	− 2485	−38.8	× 30 / 195	−6
5	19,220	2446.4	− 2528	−81.6	× 38 / 195	−15.9
6	19,221	2521.2	− 2552	−30.8	× 36 / 195	−5.7
7	19,222	2567.4	− 2567	0.4	× 32 / 195	0.1
8	19,223	2556.8	− 2586	−29.2	× 29 / 195	−4.3
Sum, rounded to a whole point						−37

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −58, −35, −57, −54, −53, −69, −58, −45, −45, −33, −37 → −49.5
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 23 · 2016→2017: 22 · 2017→2018: 3 · 2018→2019: 1 · 2019→2021: 16 · 2021→2022: 11 · 2022→2023: 13 · 2023→2024: 0 · 2024→2025: 12 · 2025→2026: 4 → average 10.5
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 10.5 × 2.66 = 27.9. Upper limit −21.6, lower limit −77.4.

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.