North Shoreview Montessori: english

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	84,006	2432.5	− 2432	0.5	× 49 / 231	0.1
4	84,007	2507.5	− 2473	34.5	× 47 / 231	7
5	84,010	2532.6	− 2502	30.6	× 49 / 231	6.5
6	84,011	2558.3	− 2531	27.3	× 34 / 231	4
7	84,014	2607.8	− 2552	55.8	× 24 / 231	5.8
8	84,015	2604.2	− 2567	37.2	× 28 / 231	4.5
Sum, rounded to a whole point						28

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,867	2457.8	− 2432	25.8	× 50 / 230	5.6
4	77,869	2507.3	− 2473	34.3	× 44 / 230	6.6
5	77,870	2567.5	− 2502	65.5	× 46 / 230	13.1
6	77,873	2603.1	− 2531	72.1	× 34 / 230	10.7
7	77,875	2616.9	− 2552	64.9	× 33 / 230	9.3
8	77,876	2631.4	− 2567	64.4	× 23 / 230	6.4
Sum, rounded to a whole point						52

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,020	2464.8	− 2432	32.8	× 50 / 247	6.6
4	80,022	2502.1	− 2473	29.1	× 49 / 247	5.8
5	80,024	2553.0	− 2502	51	× 45 / 247	9.3
6	80,026	2584.5	− 2531	53.5	× 37 / 247	8
7	80,027	2630.9	− 2552	78.9	× 34 / 247	10.9
8	80,029	2616.8	− 2567	49.8	× 32 / 247	6.5
Sum, rounded to a whole point						47

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,168	2472.3	− 2432	40.3	× 43 / 233	7.4
4	80,171	2520.3	− 2473	47.3	× 47 / 233	9.5
5	80,172	2562.3	− 2502	60.3	× 44 / 233	11.4
6	80,175	2588.1	− 2531	57.1	× 31 / 233	7.6
7	80,176	2612.8	− 2552	60.8	× 35 / 233	9.1
8	80,179	2645.0	− 2567	78	× 33 / 233	11
Sum, rounded to a whole point						56

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,658	2481.1	− 2432	49.1	× 36 / 219	8.1
4	80,659	2528.0	− 2473	55	× 38 / 219	9.5
5	80,660	2581.7	− 2502	79.7	× 47 / 219	17.1
6	80,661	2550.4	− 2531	19.4	× 32 / 219	2.8
7	80,662	2572.9	− 2552	20.9	× 31 / 219	3
8	80,663	2626.8	− 2567	59.8	× 35 / 219	9.6
Sum, rounded to a whole point						50

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,055	2470.7	− 2432	38.7	× 30 / 169	6.9
4	79,056	2508.6	− 2473	35.6	× 31 / 169	6.5
5	79,057	2577.8	− 2502	75.8	× 30 / 169	13.5
6	79,058	2588.3	− 2531	57.3	× 25 / 169	8.5
7	79,059	2616.6	− 2552	64.6	× 23 / 169	8.8
8	79,060	2628.6	− 2567	61.6	× 30 / 169	10.9
Sum, rounded to a whole point						55

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,876	2489.9	− 2432	57.9	× 35 / 156	13
4	80,877	2532.4	− 2473	59.4	× 27 / 156	10.3
5	80,878	2590.4	− 2502	88.4	× 29 / 156	16.4
6	80,879	2605.9	− 2531	74.9	× 19 / 156	9.1
7	80,880	2645.9	− 2552	93.9	× 26 / 156	15.7
8	80,881	2626.5	− 2567	59.5	× 20 / 156	7.6
Sum, rounded to a whole point						72

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,838	2503.5	− 2432	71.5	× 31 / 173	12.8
4	80,839	2558.3	− 2473	85.3	× 35 / 173	17.3
5	80,840	2595.2	− 2502	93.2	× 30 / 173	16.2
6	80,841	2599.9	− 2531	68.9	× 29 / 173	11.5
7	80,842	2624.8	− 2552	72.8	× 23 / 173	9.7
8	80,843	2641.1	− 2567	74.1	× 25 / 173	10.7
Sum, rounded to a whole point						78

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,846	2476.0	− 2432	44	× 37 / 179	9.1
4	80,847	2561.5	− 2473	88.5	× 31 / 179	15.3
5	80,848	2583.8	− 2502	81.8	× 31 / 179	14.2
6	80,849	2585.5	− 2531	54.5	× 30 / 179	9.1
7	80,850	2634.9	− 2552	82.9	× 29 / 179	13.4
8	80,851	2629.6	− 2567	62.6	× 21 / 179	7.3
Sum, rounded to a whole point						68

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,508	2452.4	− 2432	20.4	× 39 / 191	4.2
4	80,509	2515.2	− 2473	42.2	× 34 / 191	7.5
5	80,510	2577.0	− 2502	75	× 30 / 191	11.8
6	80,511	2634.3	− 2531	103.3	× 30 / 191	16.2
7	80,512	2631.5	− 2552	79.5	× 30 / 191	12.5
8	80,513	2658.8	− 2567	91.8	× 28 / 191	13.5
Sum, rounded to a whole point						66

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. 28, 52, 47, 56, 50, 55, 72, 78, 68, 66 → 57.2
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 24 · 2016→2017: 5 · 2017→2018: 9 · 2018→2019: 6 · 2019→2021: 5 · 2021→2022: 17 · 2022→2023: 6 · 2023→2024: 10 · 2024→2025: 2 → average 9.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 9.3 × 2.66 = 24.7. Upper limit 81.9, lower limit 32.5.

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