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 5.

All students

3rd The average 3rd grader scores just under the grade 3 bar. 2424 vs. 2432.
4th The average 4th grader meets the grade 4 bar. 2503 vs. 2473.
5th The average 5th grader scores 24 points under the grade 5 bar. 2479 vs. 2502.

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 45 students Meets the grade 4 bar. 5th 48 students Just under the grade 5 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 Just under the grade 3 bar. 5th 14 students Just 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	31,796	2433.7	− 2432	1.7	× 66 / 184	0.6
4	31,798	2483.6	− 2473	10.6	× 64 / 184	3.7
5	31,800	2497.6	− 2502	−4.4	× 54 / 184	−1.3
Sum, rounded to a whole point						3

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,011	2437.3	− 2432	5.3	× 63 / 185	1.8
4	30,014	2503.8	− 2473	30.8	× 62 / 185	10.3
5	30,015	2509.4	− 2502	7.4	× 60 / 185	2.4
Sum, rounded to a whole point						15

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,576	2440.7	− 2432	8.7	× 63 / 182	3
4	30,579	2500.5	− 2473	27.5	× 57 / 182	8.6
5	30,580	2510.2	− 2502	8.2	× 62 / 182	2.8
Sum, rounded to a whole point						14

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,627	2456.4	− 2432	24.4	× 69 / 189	8.9
4	30,629	2525.5	− 2473	52.5	× 60 / 189	16.7
5	30,631	2549.8	− 2502	47.8	× 60 / 189	15.2
Sum, rounded to a whole point						41

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,799	2470.8	− 2432	38.8	× 61 / 188	12.6
4	30,800	2496.8	− 2473	23.8	× 65 / 188	8.2
5	30,801	2532.5	− 2502	30.5	× 62 / 188	10.1
Sum, rounded to a whole point						31

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,826	2500.6	− 2432	68.6	× 65 / 168	26.5
4	30,827	2509.3	− 2473	36.3	× 55 / 168	11.9
5	30,828	2571.0	− 2502	69	× 48 / 168	19.7
Sum, rounded to a whole point						58

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,883	2471.6	− 2432	39.6	× 42 / 165	10.1
4	30,884	2497.8	− 2473	24.8	× 63 / 165	9.5
5	30,885	2519.8	− 2502	17.8	× 60 / 165	6.5
Sum, rounded to a whole point						26

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,749	2425.4	− 2432	−6.6	× 53 / 147	−2.4
4	30,750	2478.7	− 2473	5.7	× 35 / 147	1.4
5	30,751	2522.1	− 2502	20.1	× 59 / 147	8.1
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
3	30,608	2445.0	− 2432	13	× 61 / 157	5.1
4	30,609	2467.9	− 2473	−5.1	× 56 / 157	−1.8
5	30,610	2502.1	− 2502	0.1	× 40 / 157	0
Sum, rounded to a whole point						3

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,594	2423.7	− 2432	−8.3	× 45 / 163	−2.3
4	30,595	2503.2	− 2473	30.2	× 56 / 163	10.4
5	30,596	2478.5	− 2502	−23.5	× 62 / 163	−8.9
Sum, rounded to a whole point						−1

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. 3, 15, 14, 41, 31, 58, 26, 7, 3, −1 → 19.7
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 12 · 2016→2017: 1 · 2017→2018: 27 · 2018→2019: 10 · 2019→2022: 27 · 2022→2023: 32 · 2023→2024: 19 · 2024→2025: 4 · 2025→2026: 4 → average 15.1
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 15.1 × 2.66 = 40.2. Upper limit 59.9, lower limit −20.5.

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.