James Jordan Middle: 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
6	26,938	2484.1	− 2531	−46.9	× 135 / 350	−18.1
7	26,940	2502.5	− 2552	−49.5	× 128 / 350	−18.1
8	26,942	2510.2	− 2567	−56.8	× 87 / 350	−14.1
Sum, rounded to a whole point						−50

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	25,055	2479.3	− 2531	−51.7	× 128 / 372	−17.8
7	25,057	2546.5	− 2552	−5.5	× 128 / 372	−1.9
8	25,059	2540.3	− 2567	−26.7	× 116 / 372	−8.3
Sum, rounded to a whole point						−28

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	25,552	2490.3	− 2531	−40.7	× 124 / 367	−13.8
7	25,554	2555.7	− 2552	3.7	× 126 / 367	1.3
8	25,557	2555.8	− 2567	−11.2	× 117 / 367	−3.6
Sum, rounded to a whole point						−16

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	25,579	2523.6	− 2531	−7.4	× 141 / 384	−2.7
7	25,581	2557.2	− 2552	5.2	× 123 / 384	1.7
8	25,583	2567.7	− 2567	0.7	× 120 / 384	0.2
Sum, rounded to a whole point						−1

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	25,737	2523.3	− 2531	−7.7	× 145 / 402	−2.8
7	25,738	2556.7	− 2552	4.7	× 139 / 402	1.6
8	25,739	2591.5	− 2567	24.5	× 118 / 402	7.2
Sum, rounded to a whole point						6

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	25,684	2531.9	− 2531	0.9	× 136 / 400	0.3
7	25,685	2578.5	− 2552	26.5	× 135 / 400	8.9
8	25,686	2594.9	− 2567	27.9	× 129 / 400	9
Sum, rounded to a whole point						18

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	25,637	2509.9	− 2531	−21.1	× 144 / 435	−7
7	25,638	2568.9	− 2552	16.9	× 142 / 435	5.5
8	25,639	2579.8	− 2567	12.8	× 149 / 435	4.4
Sum, rounded to a whole point						3

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	25,489	2520.0	− 2531	−11	× 150 / 439	−3.8
7	25,490	2571.3	− 2552	19.3	× 146 / 439	6.4
8	25,491	2579.5	− 2567	12.5	× 143 / 439	4.1
Sum, rounded to a whole point						7

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	25,378	2515.6	− 2531	−15.4	× 155 / 441	−5.4
7	25,379	2564.2	− 2552	12.2	× 146 / 441	4
8	25,380	2582.6	− 2567	15.6	× 140 / 441	5
Sum, rounded to a whole point						4

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −50, −28, −16, −1, 6, 18, 3, 7, 4 → −6.3
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 22 · 2016→2017: 12 · 2017→2018: 15 · 2018→2019: 7 · 2019→2022: 12 · 2022→2023: 15 · 2023→2024: 4 · 2024→2025: 3 → average 11.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 11.3 × 2.66 = 30.1. Upper limit 23.8, lower limit −36.4.

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.