Harding University Partnership: math

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	85,534	2392.2	− 2436	−43.8	× 49 / 201	−10.7
4	85,535	2408.7	− 2485	−76.3	× 50 / 201	−19
5	85,538	2447.5	− 2528	−80.5	× 59 / 201	−23.6
6	85,539	2433.5	− 2552	−118.5	× 43 / 201	−25.4
Sum, rounded to a whole point						−79

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,347	2394.9	− 2436	−41.1	× 53 / 218	−10
4	79,348	2398.7	− 2485	−86.3	× 52 / 218	−20.6
5	79,351	2403.8	− 2528	−124.2	× 53 / 218	−30.2
6	79,352	2459.8	− 2552	−92.2	× 60 / 218	−25.4
Sum, rounded to a whole point						−86

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,515	2422.4	− 2436	−13.6	× 46 / 203	−3.1
4	81,517	2416.0	− 2485	−69	× 50 / 203	−17
5	81,520	2407.5	− 2528	−120.5	× 51 / 203	−30.3
6	81,522	2431.2	− 2552	−120.8	× 56 / 203	−33.3
Sum, rounded to a whole point						−84

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,707	2431.8	− 2436	−4.2	× 55 / 204	−1.1
4	81,708	2419.8	− 2485	−65.2	× 42 / 204	−13.4
5	81,711	2433.5	− 2528	−94.5	× 55 / 204	−25.5
6	81,712	2444.5	− 2552	−107.5	× 52 / 204	−27.4
Sum, rounded to a whole point						−67

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,226	2428.3	− 2436	−7.7	× 45 / 202	−1.7
4	82,227	2453.8	− 2485	−31.2	× 58 / 202	−9
5	82,228	2458.1	− 2528	−69.9	× 47 / 202	−16.3
6	82,229	2489.0	− 2552	−63	× 52 / 202	−16.2
Sum, rounded to a whole point						−43

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,433	2381.0	− 2436	−55	× 40 / 164	−13.4
4	82,434	2403.9	− 2485	−81.1	× 46 / 164	−22.7
5	82,435	2435.4	− 2528	−92.6	× 34 / 164	−19.2
6	82,436	2487.2	− 2552	−64.8	× 44 / 164	−17.4
Sum, rounded to a whole point						−73

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,399	2446.9	− 2436	10.9	× 60 / 197	3.3
4	82,400	2418.5	− 2485	−66.5	× 49 / 197	−16.5
5	82,401	2428.9	− 2528	−99.1	× 49 / 197	−24.6
6	82,402	2517.7	− 2552	−34.3	× 39 / 197	−6.8
Sum, rounded to a whole point						−45

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,413	2457.5	− 2436	21.5	× 41 / 205	4.3
4	82,414	2423.2	− 2485	−61.8	× 63 / 205	−19
5	82,415	2438.0	− 2528	−90	× 52 / 205	−22.8
6	82,416	2517.0	− 2552	−35	× 49 / 205	−8.4
Sum, rounded to a whole point						−46

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	82,091	2480.1	− 2436	44.1	× 43 / 194	9.8
4	82,092	2475.1	− 2485	−9.9	× 37 / 194	−1.9
5	82,093	2483.3	− 2528	−44.7	× 65 / 194	−15
6	82,094	2511.5	− 2552	−40.5	× 49 / 194	−10.2
Sum, rounded to a whole point						−17

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −79, −86, −84, −67, −43, −73, −45, −46, −17 → −60
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 7 · 2016→2017: 2 · 2017→2018: 17 · 2018→2019: 24 · 2019→2022: 30 · 2022→2023: 28 · 2023→2024: 1 · 2024→2025: 29 → average 17.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 17.3 × 2.66 = 46. Upper limit −14, lower limit −106.

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.