Dwight D. Eisenhower 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	49,659	2349.7	− 2432	−82.3	× 118 / 499	−19.5
4	49,661	2393.5	− 2473	−79.5	× 140 / 499	−22.3
5	49,663	2440.9	− 2502	−61.1	× 124 / 499	−15.2
6	49,665	2482.0	− 2531	−49	× 117 / 499	−11.5
Sum, rounded to a whole point						−68

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	46,144	2367.1	− 2432	−64.9	× 104 / 472	−14.3
4	46,145	2405.5	− 2473	−67.5	× 117 / 472	−16.7
5	46,148	2458.8	− 2502	−43.2	× 132 / 472	−12.1
6	46,149	2475.5	− 2531	−55.5	× 119 / 472	−14
Sum, rounded to a whole point						−57

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	47,385	2424.0	− 2432	−8	× 93 / 422	−1.8
4	47,387	2416.3	− 2473	−56.7	× 98 / 422	−13.2
5	47,390	2464.6	− 2502	−37.4	× 111 / 422	−9.8
6	47,391	2518.3	− 2531	−12.7	× 120 / 422	−3.6
Sum, rounded to a whole point						−28

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	47,395	2405.0	− 2432	−27	× 83 / 399	−5.6
4	47,397	2461.1	− 2473	−11.9	× 95 / 399	−2.8
5	47,399	2456.1	− 2502	−45.9	× 102 / 399	−11.7
6	47,401	2541.2	− 2531	10.2	× 119 / 399	3
Sum, rounded to a whole point						−17

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	47,570	2406.7	− 2432	−25.3	× 78 / 337	−5.9
4	47,571	2435.2	− 2473	−37.8	× 72 / 337	−8.1
5	47,572	2500.2	− 2502	−1.8	× 90 / 337	−0.5
6	47,573	2524.2	− 2531	−6.8	× 97 / 337	−2
Sum, rounded to a whole point						−16

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	47,420	2401.4	− 2432	−30.6	× 83 / 317	−8
4	47,421	2447.9	− 2473	−25.1	× 69 / 317	−5.5
5	47,422	2446.6	− 2502	−55.4	× 84 / 317	−14.7
6	47,423	2492.0	− 2531	−39	× 81 / 317	−10
Sum, rounded to a whole point						−38

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	47,406	2405.3	− 2432	−26.7	× 64 / 296	−5.8
4	47,407	2449.6	− 2473	−23.4	× 84 / 296	−6.6
5	47,408	2486.0	− 2502	−16	× 63 / 296	−3.4
6	47,409	2505.8	− 2531	−25.2	× 85 / 296	−7.2
Sum, rounded to a whole point						−23

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	47,255	2423.3	− 2432	−8.7	× 60 / 263	−2
4	47,256	2456.7	− 2473	−16.3	× 61 / 263	−3.8
5	47,257	2486.5	− 2502	−15.5	× 78 / 263	−4.6
6	47,258	2524.9	− 2531	−6.1	× 64 / 263	−1.5
Sum, rounded to a whole point						−12

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	47,011	2418.2	− 2432	−13.8	× 66 / 276	−3.3
4	47,012	2441.7	− 2473	−31.3	× 61 / 276	−6.9
5	47,013	2476.6	− 2502	−25.4	× 66 / 276	−6.1
6	47,014	2519.3	− 2531	−11.7	× 83 / 276	−3.5
Sum, rounded to a whole point						−20

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −68, −57, −28, −17, −16, −38, −23, −12, −20 → −31
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 11 · 2016→2017: 29 · 2017→2018: 11 · 2018→2019: 1 · 2019→2022: 22 · 2022→2023: 15 · 2023→2024: 11 · 2024→2025: 8 → average 13.5
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 13.5 × 2.66 = 35.9. Upper limit 4.9, lower limit −66.9.

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.