Ready Springs 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.

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	47,668	2419.1	− 2432	−12.9	× 26 / 139	−2.4
4	47,671	2454.3	− 2473	−18.7	× 19 / 139	−2.6
5	47,672	2485.6	− 2502	−16.4	× 17 / 139	−2
6	47,675	2513.7	− 2531	−17.3	× 26 / 139	−3.2
7	47,676	2536.6	− 2552	−15.4	× 24 / 139	−2.7
8	47,679	2556.4	− 2567	−10.6	× 27 / 139	−2.1
Sum, rounded to a whole point						−15

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	44,315	2412.2	− 2432	−19.8	× 28 / 144	−3.9
4	44,318	2501.4	− 2473	28.4	× 28 / 144	5.5
5	44,319	2512.0	− 2502	10	× 20 / 144	1.4
6	44,322	2513.1	− 2531	−17.9	× 19 / 144	−2.4
7	44,323	2539.5	− 2552	−12.5	× 25 / 144	−2.2
8	44,325	2564.5	− 2567	−2.5	× 24 / 144	−0.4
Sum, rounded to a whole point						−2

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,402	2438.0	− 2432	6	× 26 / 133	1.2
4	45,405	2475.7	− 2473	2.7	× 28 / 133	0.6
5	45,406	2498.2	− 2502	−3.8	× 24 / 133	−0.7
6	45,409	2487.2	− 2531	−43.8	× 18 / 133	−5.9
7	45,410	2560.6	− 2552	8.6	× 16 / 133	1
8	45,412	2524.4	− 2567	−42.6	× 21 / 133	−6.7
Sum, rounded to a whole point						−11

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,415	2420.7	− 2432	−11.3	× 24 / 224	−1.2
4	45,418	2501.7	− 2473	28.7	× 30 / 224	3.8
5	45,419	2502.5	− 2502	0.5	× 25 / 224	0.1
6	45,422	2534.9	− 2531	3.9	× 50 / 224	0.9
7	45,423	2549.9	− 2552	−2.1	× 51 / 224	−0.5
8	45,426	2567.0	− 2567	0	× 44 / 224	0
Sum, rounded to a whole point						3

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,550	2444.2	− 2432	12.2	× 20 / 227	1.1
4	45,551	2502.7	− 2473	29.7	× 29 / 227	3.8
5	45,552	2508.9	− 2502	6.9	× 27 / 227	0.8
6	45,553	2509.7	− 2531	−21.3	× 59 / 227	−5.5
7	45,554	2569.4	− 2552	17.4	× 43 / 227	3.3
8	45,555	2571.7	− 2567	4.7	× 49 / 227	1
Sum, rounded to a whole point						4

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	44,183	2397.2	− 2432	−34.8	× 24 / 216	−3.9
4	44,184	2389.5	− 2473	−83.5	× 19 / 216	−7.3
5	44,185	2529.7	− 2502	27.7	× 29 / 216	3.7
6	44,186	2502.6	− 2531	−28.4	× 51 / 216	−6.7
7	44,187	2552.9	− 2552	0.9	× 48 / 216	0.2
8	44,188	2536.9	− 2567	−30.1	× 45 / 216	−6.3
Sum, rounded to a whole point						−20

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,238	2368.5	− 2432	−63.5	× 24 / 246	−6.2
4	45,239	2477.3	− 2473	4.3	× 23 / 246	0.4
5	45,240	2457.2	− 2502	−44.8	× 22 / 246	−4
6	45,241	2521.4	− 2531	−9.6	× 62 / 246	−2.4
7	45,242	2529.7	− 2552	−22.3	× 61 / 246	−5.5
8	45,243	2546.5	− 2567	−20.5	× 54 / 246	−4.5
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	45,200	2403.7	− 2432	−28.3	× 28 / 252	−3.1
4	45,201	2400.2	− 2473	−72.8	× 25 / 252	−7.2
5	45,202	2493.3	− 2502	−8.7	× 27 / 252	−0.9
6	45,203	2507.5	− 2531	−23.5	× 56 / 252	−5.2
7	45,204	2559.9	− 2552	7.9	× 56 / 252	1.8
8	45,205	2547.0	− 2567	−20	× 60 / 252	−4.8
Sum, rounded to a whole point						−20

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,045	2432.4	− 2432	0.4	× 21 / 225	0
4	45,046	2473.3	− 2473	0.3	× 25 / 225	0
5	45,047	2464.3	− 2502	−37.7	× 31 / 225	−5.2
6	45,048	2506.7	− 2531	−24.3	× 42 / 225	−4.5
7	45,049	2525.6	− 2552	−26.4	× 47 / 225	−5.5
8	45,050	2545.3	− 2567	−21.7	× 59 / 225	−5.7
Sum, rounded to a whole point						−21

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	44,795	2505.1	− 2473	32.1	× 48 / 245	6.3
5	44,796	2508.3	− 2502	6.3	× 51 / 245	1.3
6	44,797	2511.8	− 2531	−19.2	× 64 / 245	−5
7	44,798	2542.1	− 2552	−9.9	× 40 / 245	−1.6
8	44,799	2552.1	− 2567	−14.9	× 42 / 245	−2.6
Sum, rounded to a whole point						−2

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −15, −2, −11, 3, 4, −20, −22, −20, −21, −2 → −10.6
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 13 · 2016→2017: 9 · 2017→2018: 14 · 2018→2019: 1 · 2019→2021: 24 · 2021→2022: 2 · 2022→2023: 2 · 2023→2024: 1 · 2024→2025: 19 → average 9.4
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 9.4 × 2.66 = 25. Upper limit 14.4, lower limit −35.6.

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.