Santa Rosa Academy: 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	56,955	2407.3	− 2432	−24.7	× 85 / 768	−2.7
4	56,957	2439.8	− 2473	−33.2	× 103 / 768	−4.5
5	56,959	2486.8	− 2502	−15.2	× 98 / 768	−1.9
6	56,961	2490.2	− 2531	−40.8	× 121 / 768	−6.4
7	56,963	2550.1	− 2552	−1.9	× 128 / 768	−0.3
8	56,965	2569.3	− 2567	2.3	× 137 / 768	0.4
11	56,967	2623.6	− 2583	40.6	× 96 / 768	5.1
Sum, rounded to a whole point						−10

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	52,887	2451.4	− 2432	19.4	× 82 / 757	2.1
4	52,890	2490.2	− 2473	17.2	× 89 / 757	2
5	52,891	2489.3	− 2502	−12.7	× 104 / 757	−1.7
6	52,894	2536.1	− 2531	5.1	× 122 / 757	0.8
7	52,895	2553.5	− 2552	1.5	× 125 / 757	0.2
8	52,897	2581.2	− 2567	14.2	× 128 / 757	2.4
11	52,899	2633.6	− 2583	50.6	× 107 / 757	7.2
Sum, rounded to a whole point						13

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	54,407	2453.0	− 2432	21	× 83 / 827	2.1
4	54,408	2495.3	− 2473	22.3	× 91 / 827	2.5
5	54,411	2521.2	− 2502	19.2	× 108 / 827	2.5
6	54,413	2523.2	− 2531	−7.8	× 132 / 827	−1.2
7	54,415	2552.9	− 2552	0.9	× 140 / 827	0.2
8	54,416	2561.2	− 2567	−5.8	× 133 / 827	−0.9
11	54,418	2624.3	− 2583	41.3	× 140 / 827	7
Sum, rounded to a whole point						12

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	54,519	2468.0	− 2432	36	× 84 / 811	3.7
4	54,522	2518.9	− 2473	45.9	× 91 / 811	5.2
5	54,523	2528.4	− 2502	26.4	× 101 / 811	3.3
6	54,526	2532.8	− 2531	1.8	× 130 / 811	0.3
7	54,527	2541.8	− 2552	−10.2	× 138 / 811	−1.7
8	54,530	2564.5	− 2567	−2.5	× 148 / 811	−0.5
11	54,531	2625.5	− 2583	42.5	× 119 / 811	6.2
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	54,758	2464.9	− 2432	32.9	× 84 / 816	3.4
4	54,759	2517.2	− 2473	44.2	× 96 / 816	5.2
5	54,760	2552.5	− 2502	50.5	× 97 / 816	6
6	54,761	2573.8	− 2531	42.8	× 133 / 816	7
7	54,762	2574.4	− 2552	22.4	× 148 / 816	4.1
8	54,763	2591.9	− 2567	24.9	× 141 / 816	4.3
11	54,764	2643.7	− 2583	60.7	× 117 / 816	8.7
Sum, rounded to a whole point						39

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	54,794	2433.3	− 2432	1.3	× 86 / 799	0.1
4	54,795	2492.6	− 2473	19.6	× 92 / 799	2.3
5	54,796	2510.8	− 2502	8.8	× 105 / 799	1.2
6	54,797	2534.1	− 2531	3.1	× 135 / 799	0.5
7	54,798	2586.1	− 2552	34.1	× 137 / 799	5.8
8	54,799	2576.7	− 2567	9.7	× 138 / 799	1.7
11	54,800	2584.7	− 2583	1.7	× 106 / 799	0.2
Sum, rounded to a whole point						12

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	54,745	2426.9	− 2432	−5.1	× 89 / 830	−0.5
4	54,746	2486.5	− 2473	13.5	× 90 / 830	1.5
5	54,747	2515.6	− 2502	13.6	× 98 / 830	1.6
6	54,748	2546.3	− 2531	15.3	× 144 / 830	2.7
7	54,749	2558.8	− 2552	6.8	× 145 / 830	1.2
8	54,750	2555.4	− 2567	−11.6	× 145 / 830	−2
11	54,751	2606.8	− 2583	23.8	× 119 / 830	3.4
Sum, rounded to a whole point						8

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	54,615	2439.7	− 2432	7.7	× 88 / 853	0.8
4	54,616	2493.3	− 2473	20.3	× 89 / 853	2.1
5	54,617	2528.2	− 2502	26.2	× 74 / 853	2.3
6	54,618	2533.9	− 2531	2.9	× 160 / 853	0.5
7	54,619	2562.7	− 2552	10.7	× 162 / 853	2
8	54,620	2555.6	− 2567	−11.4	× 163 / 853	−2.2
11	54,621	2609.1	− 2583	26.1	× 117 / 853	3.6
Sum, rounded to a whole point						9

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	54,355	2446.7	− 2432	14.7	× 109 / 978	1.6
4	54,356	2505.8	− 2473	32.8	× 93 / 978	3.1
5	54,357	2525.1	− 2502	23.1	× 111 / 978	2.6
6	54,358	2537.7	− 2531	6.7	× 171 / 978	1.2
7	54,359	2573.6	− 2552	21.6	× 187 / 978	4.1
8	54,360	2576.1	− 2567	9.1	× 171 / 978	1.6
11	54,361	2585.1	− 2583	2.1	× 136 / 978	0.3
Sum, rounded to a whole point						15

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −10, 13, 12, 16, 39, 12, 8, 9, 15 → 12.7
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: 1 · 2017→2018: 4 · 2018→2019: 23 · 2019→2022: 27 · 2022→2023: 4 · 2023→2024: 1 · 2024→2025: 6 → average 11.1
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 11.1 × 2.66 = 29.5. Upper limit 42.2, 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.