Stege 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	7,875	2328.0	− 2432	−104	× 42 / 157	−27.8
4	7,877	2343.5	− 2473	−129.5	× 36 / 157	−29.7
5	7,879	2411.4	− 2502	−90.6	× 37 / 157	−21.4
6	7,881	2467.3	− 2531	−63.7	× 42 / 157	−17
Sum, rounded to a whole point						−96

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,059	2341.5	− 2432	−90.5	× 37 / 133	−25.2
4	7,061	2346.1	− 2473	−126.9	× 39 / 133	−37.2
5	7,062	2386.8	− 2502	−115.2	× 29 / 133	−25.1
6	7,064	2453.5	− 2531	−77.5	× 28 / 133	−16.3
Sum, rounded to a whole point						−104

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,271	2335.3	− 2432	−96.7	× 35 / 125	−27.1
4	7,273	2369.9	− 2473	−103.1	× 39 / 125	−32.2
5	7,274	2384.2	− 2502	−117.8	× 30 / 125	−28.3
6	7,276	2406.6	− 2531	−124.4	× 21 / 125	−20.9
Sum, rounded to a whole point						−108

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,288	2328.7	− 2432	−103.3	× 33 / 129	−26.4
4	7,291	2328.2	− 2473	−144.8	× 30 / 129	−33.7
5	7,292	2399.5	− 2502	−102.5	× 35 / 129	−27.8
6	7,295	2412.3	− 2531	−118.7	× 31 / 129	−28.5
Sum, rounded to a whole point						−116

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,334	2325.5	− 2432	−106.5	× 35 / 129	−28.9
4	7,335	2349.1	− 2473	−123.9	× 35 / 129	−33.6
5	7,336	2380.7	− 2502	−121.3	× 27 / 129	−25.4
6	7,337	2429.2	− 2531	−101.8	× 32 / 129	−25.3
Sum, rounded to a whole point						−113

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,279	2328.3	− 2432	−103.7	× 23 / 104	−22.9
4	7,280	2367.9	− 2473	−105.1	× 29 / 104	−29.3
5	7,281	2421.0	− 2502	−81	× 27 / 104	−21
6	7,282	2402.8	− 2531	−128.2	× 25 / 104	−30.8
Sum, rounded to a whole point						−104

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,267	2288.6	− 2432	−143.4	× 39 / 116	−48.2
4	7,268	2386.3	− 2473	−86.7	× 22 / 116	−16.4
5	7,269	2396.5	− 2502	−105.5	× 26 / 116	−23.6
6	7,270	2431.2	− 2531	−99.8	× 29 / 116	−25
Sum, rounded to a whole point						−113

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,214	2286.8	− 2432	−145.2	× 20 / 55	−52.8
5	7,216	2329.3	− 2502	−172.7	× 12 / 55	−37.7
6	7,217	2386.9	− 2531	−144.1	× 23 / 55	−60.3
Sum, rounded to a whole point						−151

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	7,174	2301.4	− 2432	−130.6	× 22 / 90	−31.9
4	7,175	2376.7	− 2473	−96.3	× 21 / 90	−22.5
5	7,176	2376.1	− 2502	−125.9	× 28 / 90	−39.2
6	7,177	2429.5	− 2531	−101.5	× 19 / 90	−21.4
Sum, rounded to a whole point						−115

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −96, −104, −108, −116, −113, −104, −113, −151, −115 → −113.3
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 8 · 2016→2017: 4 · 2017→2018: 8 · 2018→2019: 3 · 2019→2022: 9 · 2022→2023: 9 · 2023→2024: 38 · 2024→2025: 36 → average 14.4
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 14.4 × 2.66 = 38.3. Upper limit −75, lower limit −151.6.

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.