Ferndale Unified: 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	14,320	2356.5	− 2436	−79.5	× 38 / 281	−10.8
4	14,323	2453.1	− 2485	−31.9	× 35 / 281	−4
5	14,324	2474.6	− 2528	−53.4	× 34 / 281	−6.5
6	14,327	2498.5	− 2552	−53.5	× 49 / 281	−9.3
7	14,328	2534.2	− 2567	−32.8	× 39 / 281	−4.6
8	14,331	2547.9	− 2586	−38.1	× 42 / 281	−5.7
11	14,332	2561.8	− 2628	−66.2	× 44 / 281	−10.4
Sum, rounded to a whole point						−51

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,342	2397.5	− 2436	−38.5	× 40 / 285	−5.4
4	13,344	2431.5	− 2485	−53.5	× 44 / 285	−8.3
5	13,347	2500.4	− 2528	−27.6	× 30 / 285	−2.9
6	13,348	2498.8	− 2552	−53.2	× 40 / 285	−7.5
7	13,351	2503.2	− 2567	−63.8	× 51 / 285	−11.4
8	13,352	2539.0	− 2586	−47	× 40 / 285	−6.6
11	13,354	2571.2	− 2628	−56.8	× 40 / 285	−8
Sum, rounded to a whole point						−50

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,676	2421.0	− 2436	−15	× 31 / 275	−1.7
4	13,677	2438.8	− 2485	−46.2	× 39 / 275	−6.6
5	13,679	2469.9	− 2528	−58.1	× 44 / 275	−9.3
6	13,681	2500.9	− 2552	−51.1	× 34 / 275	−6.3
7	13,684	2544.5	− 2567	−22.5	× 41 / 275	−3.4
8	13,685	2544.4	− 2586	−41.6	× 51 / 275	−7.7
11	13,688	2547.7	− 2628	−80.3	× 35 / 275	−10.2
Sum, rounded to a whole point						−45

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,666	2405.9	− 2436	−30.1	× 33 / 249	−4
4	13,667	2470.3	− 2485	−14.7	× 32 / 249	−1.9
5	13,670	2477.8	− 2528	−50.2	× 38 / 249	−7.7
6	13,671	2494.0	− 2552	−58	× 46 / 249	−10.7
7	13,674	2577.6	− 2567	10.6	× 29 / 249	1.2
8	13,675	2576.2	− 2586	−9.8	× 38 / 249	−1.5
11	13,678	2570.9	− 2628	−57.1	× 33 / 249	−7.6
Sum, rounded to a whole point						−32

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,792	2415.7	− 2436	−20.3	× 38 / 253	−3
4	13,793	2463.1	− 2485	−21.9	× 37 / 253	−3.2
5	13,794	2480.2	− 2528	−47.8	× 30 / 253	−5.7
6	13,795	2503.8	− 2552	−48.2	× 33 / 253	−6.3
7	13,796	2540.1	− 2567	−26.9	× 45 / 253	−4.8
8	13,797	2571.8	− 2586	−14.2	× 33 / 253	−1.9
11	13,798	2543.0	− 2628	−85	× 37 / 253	−12.4
Sum, rounded to a whole point						−37

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,484	2402.6	− 2436	−33.4	× 31 / 235	−4.4
4	13,485	2447.7	− 2485	−37.3	× 38 / 235	−6
5	13,486	2460.5	− 2528	−67.5	× 33 / 235	−9.5
6	13,487	2492.2	− 2552	−59.8	× 37 / 235	−9.4
7	13,488	2549.9	− 2567	−17.1	× 27 / 235	−2
8	13,489	2528.5	− 2586	−57.5	× 36 / 235	−8.8
11	13,490	2505.5	− 2628	−122.5	× 33 / 235	−17.2
Sum, rounded to a whole point						−57

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,811	2432.9	− 2436	−3.1	× 30 / 248	−0.4
4	13,812	2448.1	− 2485	−36.9	× 38 / 248	−5.7
5	13,813	2478.3	− 2528	−49.7	× 34 / 248	−6.8
6	13,814	2528.4	− 2552	−23.6	× 46 / 248	−4.4
7	13,815	2546.5	− 2567	−20.5	× 42 / 248	−3.5
8	13,816	2540.5	− 2586	−45.5	× 32 / 248	−5.9
11	13,817	2599.3	− 2628	−28.7	× 26 / 248	−3
Sum, rounded to a whole point						−30

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,786	2427.8	− 2436	−8.2	× 41 / 270	−1.2
4	13,787	2484.9	− 2485	−0.1	× 30 / 270	0
5	13,788	2496.2	− 2528	−31.8	× 35 / 270	−4.1
6	13,789	2515.8	− 2552	−36.2	× 40 / 270	−5.4
7	13,790	2559.6	− 2567	−7.4	× 44 / 270	−1.2
8	13,791	2537.5	− 2586	−48.5	× 42 / 270	−7.5
11	13,792	2490.0	− 2628	−138	× 38 / 270	−19.4
Sum, rounded to a whole point						−39

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,751	2448.7	− 2436	12.7	× 33 / 249	1.7
4	13,752	2477.4	− 2485	−7.6	× 40 / 249	−1.2
5	13,753	2503.3	− 2528	−24.7	× 33 / 249	−3.3
6	13,754	2522.6	− 2552	−29.4	× 36 / 249	−4.3
7	13,755	2612.3	− 2567	45.3	× 36 / 249	6.5
8	13,756	2637.0	− 2586	51	× 43 / 249	8.8
11	13,757	2547.8	− 2628	−80.2	× 28 / 249	−9
Sum, rounded to a whole point						−1

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,705	2419.5	− 2436	−16.5	× 38 / 251	−2.5
4	13,706	2511.2	− 2485	26.2	× 36 / 251	3.8
5	13,707	2492.6	− 2528	−35.4	× 43 / 251	−6.1
6	13,708	2549.6	− 2552	−2.4	× 35 / 251	−0.3
7	13,709	2647.3	− 2567	80.3	× 36 / 251	11.5
8	13,710	2649.6	− 2586	63.6	× 30 / 251	7.6
11	13,711	2570.1	− 2628	−57.9	× 33 / 251	−7.6
Sum, rounded to a whole point						6

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,719	2435.7	− 2436	−0.3	× 35 / 261	0
4	13,720	2478.1	− 2485	−6.9	× 42 / 261	−1.1
5	13,721	2535.2	− 2528	7.2	× 36 / 261	1
6	13,722	2561.6	− 2552	9.6	× 44 / 261	1.6
7	13,723	2629.6	− 2567	62.6	× 35 / 261	8.4
8	13,724	2646.1	− 2586	60.1	× 34 / 261	7.8
11	13,725	2582.0	− 2628	−46	× 35 / 261	−6.2
Sum, rounded to a whole point						12

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −51, −50, −45, −32, −37, −57, −30, −39, −1, 6, 12 → −29.5
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: 5 · 2017→2018: 13 · 2018→2019: 5 · 2019→2021: 20 · 2021→2022: 27 · 2022→2023: 9 · 2023→2024: 38 · 2024→2025: 7 · 2025→2026: 6 → average 13.1
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 13.1 × 2.66 = 34.8. Upper limit 5.3, lower limit −64.3.

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.

Ferndale Unified