Hooker Oak 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	4,506	2391.4	− 2432	−40.6	× 49 / 187	−10.6
4	4,509	2436.0	− 2473	−37	× 37 / 187	−7.3
5	4,511	2495.0	− 2502	−7	× 54 / 187	−2
6	4,512	2526.2	− 2531	−4.8	× 47 / 187	−1.2
Sum, rounded to a whole point						−21

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,013	2418.3	− 2432	−13.7	× 49 / 180	−3.7
4	4,014	2444.3	− 2473	−28.7	× 43 / 180	−6.9
5	4,016	2476.9	− 2502	−25.1	× 33 / 180	−4.6
6	4,019	2526.4	− 2531	−4.6	× 55 / 180	−1.4
Sum, rounded to a whole point						−17

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,102	2397.7	− 2432	−34.3	× 43 / 124	−11.9
4	4,105	2474.7	− 2473	1.7	× 44 / 124	0.6
5	4,107	2480.4	− 2502	−21.6	× 37 / 124	−6.4
Sum, rounded to a whole point						−18

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,105	2416.9	− 2432	−15.1	× 52 / 140	−5.6
4	4,106	2474.5	− 2473	1.5	× 42 / 140	0.5
5	4,109	2522.9	− 2502	20.9	× 46 / 140	6.9
Sum, rounded to a whole point						2

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,154	2421.5	− 2432	−10.5	× 55 / 156	−3.7
4	4,155	2475.4	− 2473	2.4	× 54 / 156	0.8
5	4,156	2510.0	− 2502	8	× 47 / 156	2.4
Sum, rounded to a whole point						0

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,072	2414.8	− 2432	−17.2	× 55 / 160	−5.9
4	4,073	2449.9	− 2473	−23.1	× 57 / 160	−8.2
5	4,074	2496.8	− 2502	−5.2	× 48 / 160	−1.6
Sum, rounded to a whole point						−16

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,053	2386.1	− 2432	−45.9	× 39 / 141	−12.7
4	4,054	2479.1	− 2473	6.1	× 50 / 141	2.2
5	4,055	2494.5	− 2502	−7.5	× 52 / 141	−2.8
Sum, rounded to a whole point						−13

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,018	2419.4	− 2432	−12.6	× 53 / 149	−4.5
4	4,019	2459.3	− 2473	−13.7	× 43 / 149	−4
5	4,020	2527.2	− 2502	25.2	× 53 / 149	9
Sum, rounded to a whole point						1

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	3,972	2428.4	− 2432	−3.6	× 54 / 151	−1.3
4	3,973	2493.3	− 2473	20.3	× 52 / 151	7
5	3,974	2518.2	− 2502	16.2	× 45 / 151	4.8
Sum, rounded to a whole point						11

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −21, −17, −18, 2, 0, −16, −13, 1, 11 → −7.9
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 4 · 2016→2017: 1 · 2017→2018: 20 · 2018→2019: 2 · 2019→2022: 16 · 2022→2023: 3 · 2023→2024: 14 · 2024→2025: 10 → average 8.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 8.8 × 2.66 = 23.4. Upper limit 15.5, lower limit −31.3.

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.