Santa Monica Alternative (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.

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	37,242	2395.5	− 2436	−40.5	× 16 / 118	−5.5
4	37,243	2513.9	− 2485	28.9	× 16 / 118	3.9
5	37,246	2531.0	− 2528	3	× 18 / 118	0.5
6	37,247	2551.7	− 2552	−0.3	× 17 / 118	0
7	37,250	2573.4	− 2567	6.4	× 23 / 118	1.2
8	37,251	2652.6	− 2586	66.6	× 28 / 118	15.8
Sum, rounded to a whole point						16

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	34,680	2500.7	− 2485	15.7	× 11 / 85	2
5	34,682	2538.4	− 2528	10.4	× 14 / 85	1.7
6	34,684	2570.3	− 2552	18.3	× 19 / 85	4.1
7	34,687	2615.2	− 2567	48.2	× 20 / 85	11.3
8	34,689	2584.5	− 2586	−1.5	× 21 / 85	−0.4
Sum, rounded to a whole point						19

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,317	2424.4	− 2436	−11.6	× 17 / 74	−2.7
5	35,320	2553.1	− 2528	25.1	× 11 / 74	3.7
6	35,322	2584.1	− 2552	32.1	× 14 / 74	6.1
7	35,325	2661.3	− 2567	94.3	× 15 / 74	19.1
8	35,326	2650.2	− 2586	64.2	× 17 / 74	14.7
Sum, rounded to a whole point						41

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,329	2399.6	− 2436	−36.4	× 11 / 64	−6.3
4	35,331	2459.9	− 2485	−25.1	× 18 / 64	−7.1
7	35,337	2603.1	− 2567	36.1	× 17 / 64	9.6
8	35,339	2654.9	− 2586	68.9	× 18 / 64	19.4
Sum, rounded to a whole point						16

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,500	2447.9	− 2436	11.9	× 14 / 69	2.4
5	35,502	2540.4	− 2528	12.4	× 16 / 69	2.9
6	35,503	2585.9	− 2552	33.9	× 11 / 69	5.4
7	35,504	2677.5	− 2567	110.5	× 16 / 69	25.6
8	35,505	2664.8	− 2586	78.8	× 12 / 69	13.7
Sum, rounded to a whole point						50

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,387	2463.5	− 2436	27.5	× 26 / 135	5.3
4	35,388	2489.5	− 2485	4.5	× 21 / 135	0.7
5	35,389	2517.5	− 2528	−10.5	× 28 / 135	−2.2
6	35,390	2543.7	− 2552	−8.3	× 20 / 135	−1.2
7	35,391	2598.1	− 2567	31.1	× 13 / 135	3
8	35,392	2644.6	− 2586	58.6	× 27 / 135	11.7
Sum, rounded to a whole point						17

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,398	2467.0	− 2436	31	× 20 / 116	5.3
4	35,399	2508.5	− 2485	23.5	× 23 / 116	4.7
5	35,400	2529.4	− 2528	1.4	× 19 / 116	0.2
6	35,401	2547.6	− 2552	−4.4	× 21 / 116	−0.8
7	35,402	2620.2	− 2567	53.2	× 18 / 116	8.3
8	35,403	2626.7	− 2586	40.7	× 15 / 116	5.3
Sum, rounded to a whole point						23

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,256	2478.2	− 2436	42.2	× 18 / 112	6.8
4	35,257	2509.5	− 2485	24.5	× 24 / 112	5.3
5	35,258	2579.1	− 2528	51.1	× 18 / 112	8.2
6	35,259	2554.9	− 2552	2.9	× 18 / 112	0.5
7	35,260	2600.3	− 2567	33.3	× 19 / 112	5.6
8	35,261	2626.8	− 2586	40.8	× 15 / 112	5.5
Sum, rounded to a whole point						32

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,107	2458.9	− 2436	22.9	× 21 / 118	4.1
4	35,108	2514.5	− 2485	29.5	× 20 / 118	5
5	35,109	2532.6	− 2528	4.6	× 23 / 118	0.9
6	35,110	2561.9	− 2552	9.9	× 16 / 118	1.3
7	35,111	2639.8	− 2567	72.8	× 21 / 118	13
8	35,112	2645.3	− 2586	59.3	× 17 / 118	8.5
Sum, rounded to a whole point						33

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. 16, 19, 41, 16, 50, 17, 23, 32, 33 → 27.4
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 3 · 2016→2017: 22 · 2017→2018: 25 · 2018→2019: 34 · 2019→2022: 33 · 2022→2023: 6 · 2023→2024: 9 · 2024→2025: 1 → average 16.6
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 16.6 × 2.66 = 44.2. Upper limit 71.6, lower limit −16.8.

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.