River Charter Schools Lighthouse Charter: 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 8.

3rd The average 3rd grader scores 72 points under the grade 3 bar. 2360 vs. 2432.
4th The average 4th grader scores 27 points under the grade 3 bar. 2406 vs. 2432. The 4th-grade bar is 2473.
5th The average 5th grader scores 11 points under the grade 5 bar. 2491 vs. 2502.
6th The average 6th grader scores 15 points under the grade 4 bar. 2458 vs. 2473. The 6th-grade bar is 2531.
7th The average 7th grader scores 27 points under the grade 6 bar. 2504 vs. 2531. The 7th-grade bar is 2552.
8th The average 8th grader scores just under the grade 6 bar. 2526 vs. 2531. The 8th-grade bar is 2567.

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.

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	100,819	2394.1	− 2432	−37.9	× 19 / 19	−37.9
Sum, rounded to a whole point						−38

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	100,965	2421.6	− 2432	−10.4	× 26 / 39	−6.9
4	100,968	2439.1	− 2473	−33.9	× 13 / 39	−11.3
Sum, rounded to a whole point						−18

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	101,608	2427.6	− 2432	−4.4	× 45 / 130	−1.5
4	101,609	2431.5	− 2473	−41.5	× 31 / 130	−9.9
5	101,610	2456.5	− 2502	−45.5	× 32 / 130	−11.2
6	101,611	2488.5	− 2531	−42.5	× 22 / 130	−7.2
Sum, rounded to a whole point						−30

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	101,861	2399.5	− 2432	−32.5	× 65 / 289	−7.3
4	101,862	2446.1	− 2473	−26.9	× 61 / 289	−5.7
5	101,863	2462.1	− 2502	−39.9	× 55 / 289	−7.6
6	101,864	2484.4	− 2531	−46.6	× 58 / 289	−9.4
7	101,865	2532.7	− 2552	−19.3	× 20 / 289	−1.3
8	101,866	2514.6	− 2567	−52.4	× 30 / 289	−5.4
Sum, rounded to a whole point						−37

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	101,687	2369.0	− 2432	−63	× 54 / 253	−13.4
4	101,688	2459.7	− 2473	−13.3	× 54 / 253	−2.8
5	101,689	2470.7	− 2502	−31.3	× 50 / 253	−6.2
6	101,690	2507.7	− 2531	−23.3	× 36 / 253	−3.3
7	101,691	2535.3	− 2552	−16.7	× 39 / 253	−2.6
8	101,692	2552.2	− 2567	−14.8	× 20 / 253	−1.2
Sum, rounded to a whole point						−30

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	101,576	2332.4	− 2432	−99.6	× 56 / 263	−21.2
4	101,577	2422.0	− 2473	−51	× 48 / 263	−9.3
5	101,578	2504.2	− 2502	2.2	× 53 / 263	0.4
6	101,579	2519.6	− 2531	−11.4	× 36 / 263	−1.6
7	101,580	2542.8	− 2552	−9.2	× 35 / 263	−1.2
8	101,581	2558.0	− 2567	−9	× 35 / 263	−1.2
Sum, rounded to a whole point						−34

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	101,238	2370.3	− 2432	−61.7	× 48 / 268	−11.1
4	101,239	2407.4	− 2473	−65.6	× 47 / 268	−11.5
5	101,240	2487.8	− 2502	−14.2	× 44 / 268	−2.3
6	101,241	2522.0	− 2531	−9	× 53 / 268	−1.8
7	101,242	2521.4	− 2552	−30.6	× 37 / 268	−4.2
8	101,243	2535.4	− 2567	−31.6	× 39 / 268	−4.6
Sum, rounded to a whole point						−35

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	100,899	2360.3	− 2432	−71.7	× 45 / 263	−12.3
4	100,900	2405.5	− 2473	−67.5	× 47 / 263	−12.1
5	100,901	2490.9	− 2502	−11.1	× 44 / 263	−1.9
6	100,902	2458.0	− 2531	−73	× 46 / 263	−12.8
7	100,903	2503.7	− 2552	−48.3	× 48 / 263	−8.8
8	100,904	2525.9	− 2567	−41.1	× 33 / 263	−5.2
Sum, rounded to a whole point						−53

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −38, −18, −30, −37, −30, −34, −35, −53 → −34.4
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2017→2018: 20 · 2018→2019: 12 · 2019→2022: 7 · 2022→2023: 7 · 2023→2024: 4 · 2024→2025: 1 · 2025→2026: 18 → average 9.9
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 9.9 × 2.66 = 26.3. Upper limit −8.1, lower limit −60.7.

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