Mojave River Academy - Marble City: 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.

Measured against the grade bars

The state's English test uses one scale for every grade, so a score means the same thing in grade 3 as in grade 11.

5th The average 5th grader scores 35 points under the grade 4 bar. 2438 vs. 2473. The 5th-grade bar is 2502.
6th The average 6th grader scores just under the grade 3 bar. 2425 vs. 2432. The 6th-grade bar is 2531.
7th The average 7th grader scores 28 points under the grade 5 bar. 2474 vs. 2502. The 7th-grade bar is 2552.
8th The average 8th grader scores 28 points under the grade 5 bar. 2474 vs. 2502. The 8th-grade bar is 2567.
11th The average 11th grader scores 13 points under the grade 6 bar. 2518 vs. 2531. The 11th-grade bar is 2583.

2026 results. The English test covers reading, writing, listening and research together. "Meets standard" is the state's mark for being on track for that grade.

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.

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
7	64,326	2456.3	− 2552	−95.7	× 11 / 57	−18.5
8	64,327	2465.5	− 2567	−101.5	× 11 / 57	−19.6
11	64,328	2528.5	− 2583	−54.5	× 35 / 57	−33.5
Sum, rounded to a whole point						−72

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
5	64,397	2402.6	− 2502	−99.4	× 12 / 74	−16.1
7	64,399	2468.9	− 2552	−83.1	× 16 / 74	−18
8	64,400	2495.7	− 2567	−71.3	× 16 / 74	−15.4
11	64,401	2465.1	− 2583	−117.9	× 30 / 74	−47.8
Sum, rounded to a whole point						−97

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	64,381	2460.2	− 2531	−70.8	× 13 / 97	−9.5
7	64,382	2494.1	− 2552	−57.9	× 12 / 97	−7.2
8	64,383	2486.6	− 2567	−80.4	× 23 / 97	−19.1
11	64,384	2517.1	− 2583	−65.9	× 49 / 97	−33.3
Sum, rounded to a whole point						−69

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	64,355	2422.3	− 2531	−108.7	× 22 / 114	−21
7	64,356	2471.7	− 2552	−80.3	× 25 / 114	−17.6
8	64,357	2479.8	− 2567	−87.2	× 24 / 114	−18.4
11	64,358	2525.1	− 2583	−57.9	× 43 / 114	−21.8
Sum, rounded to a whole point						−79

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
5	64,118	2404.9	− 2502	−97.1	× 14 / 145	−9.4
6	64,119	2432.4	− 2531	−98.6	× 18 / 145	−12.2
7	64,120	2469.0	− 2552	−83	× 22 / 145	−12.6
8	64,121	2470.2	− 2567	−96.8	× 29 / 145	−19.4
11	64,122	2522.8	− 2583	−60.2	× 62 / 145	−25.7
Sum, rounded to a whole point						−79

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
5	64,090	2437.6	− 2502	−64.4	× 18 / 174	−6.7
6	64,091	2425.1	− 2531	−105.9	× 24 / 174	−14.6
7	64,092	2473.6	− 2552	−78.4	× 35 / 174	−15.8
8	64,093	2473.7	− 2567	−93.3	× 28 / 174	−15
11	64,094	2517.8	− 2583	−65.2	× 69 / 174	−25.9
Sum, rounded to a whole point						−78

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −72, −97, −69, −79, −79, −78 → −79
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2019→2022: 25 · 2022→2023: 28 · 2023→2024: 10 · 2024→2025: 0 · 2025→2026: 1 → average 12.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 12.8 × 2.66 = 34. Upper limit −45, lower limit −113.

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 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.