Rio Vista Elementary: 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 6.

All students

3rd The average 3rd grader meets the grade 3 bar. 2444 vs. 2432.
4th The average 4th grader scores 18 points under the grade 4 bar. 2455 vs. 2473.
5th The average 5th grader meets the grade 5 bar. 2509 vs. 2502.
6th The average 6th grader meets the grade 6 bar. 2577 vs. 2531.

Students fluent in English

The closest these results come to reading alone: English is not in the way. Includes students who have only ever spoken English.

Grade bars 4th 21 students Meets the grade 4 bar.

English learners

Students leave this group as they become fluent, so its average stays low even where they learn well.

Grade bars 4th 11 students 41 points under the grade 3 bar.

the group's average that grade's own bar the distance between

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. The state leaves out any group of ten students or fewer, so a grade may be missing from the charts.

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	23,314	2455.6	− 2432	23.6	× 56 / 206	6.4
4	23,316	2472.5	− 2473	−0.5	× 50 / 206	−0.1
5	23,318	2476.6	− 2502	−25.4	× 50 / 206	−6.2
6	23,320	2599.3	− 2531	68.3	× 50 / 206	16.6
Sum, rounded to a whole point						17

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	21,905	2433.3	− 2432	1.3	× 57 / 208	0.4
4	21,907	2508.3	− 2473	35.3	× 55 / 208	9.3
5	21,909	2536.9	− 2502	34.9	× 42 / 208	7
6	21,911	2565.3	− 2531	34.3	× 54 / 208	8.9
Sum, rounded to a whole point						26

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,323	2424.7	− 2432	−7.3	× 51 / 204	−1.8
4	22,325	2476.9	− 2473	3.9	× 57 / 204	1.1
5	22,326	2547.6	− 2502	45.6	× 53 / 204	11.8
6	22,329	2556.9	− 2531	25.9	× 43 / 204	5.5
Sum, rounded to a whole point						17

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,309	2447.5	− 2432	15.5	× 51 / 210	3.8
4	22,311	2467.4	− 2473	−5.6	× 52 / 210	−1.4
5	22,313	2535.9	− 2502	33.9	× 57 / 210	9.2
6	22,315	2587.2	− 2531	56.2	× 50 / 210	13.4
Sum, rounded to a whole point						25

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,483	2425.4	− 2432	−6.6	× 50 / 207	−1.6
4	22,484	2497.3	− 2473	24.3	× 51 / 207	6
5	22,485	2504.3	− 2502	2.3	× 51 / 207	0.6
6	22,486	2559.8	− 2531	28.8	× 55 / 207	7.7
Sum, rounded to a whole point						13

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,450	2417.9	− 2432	−14.1	× 43 / 168	−3.6
4	22,451	2491.2	− 2473	18.2	× 37 / 168	4
5	22,452	2548.4	− 2502	46.4	× 46 / 168	12.7
6	22,453	2565.6	− 2531	34.6	× 42 / 168	8.7
Sum, rounded to a whole point						22

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,425	2437.7	− 2432	5.7	× 32 / 150	1.2
4	22,426	2470.6	− 2473	−2.4	× 39 / 150	−0.6
5	22,427	2517.8	− 2502	15.8	× 34 / 150	3.6
6	22,428	2571.0	− 2531	40	× 45 / 150	12
Sum, rounded to a whole point						16

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,275	2416.1	− 2432	−15.9	× 42 / 150	−4.5
4	22,276	2489.3	− 2473	16.3	× 33 / 150	3.6
5	22,277	2496.2	− 2502	−5.8	× 39 / 150	−1.5
6	22,278	2551.7	− 2531	20.7	× 36 / 150	5
Sum, rounded to a whole point						3

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,186	2386.2	− 2432	−45.8	× 36 / 147	−11.2
4	22,187	2457.2	− 2473	−15.8	× 45 / 147	−4.8
5	22,188	2530.8	− 2502	28.8	× 27 / 147	5.3
6	22,189	2567.1	− 2531	36.1	× 39 / 147	9.6
Sum, rounded to a whole point						−1

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,242	2443.6	− 2432	11.6	× 40 / 137	3.4
4	22,243	2455.3	− 2473	−17.7	× 32 / 137	−4.1
5	22,244	2508.5	− 2502	6.5	× 41 / 137	1.9
6	22,245	2576.7	− 2531	45.7	× 24 / 137	8
Sum, rounded to a whole point						9

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. 17, 26, 17, 25, 13, 22, 16, 3, −1, 9 → 14.7
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 9 · 2016→2017: 9 · 2017→2018: 8 · 2018→2019: 12 · 2019→2022: 9 · 2022→2023: 6 · 2023→2024: 13 · 2024→2025: 4 · 2025→2026: 10 → average 8.9
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 8.9 × 2.66 = 23.7. Upper limit 38.4, lower limit −9.

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.