Pierce Joint Unified: english

The shaded band is this district'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	5,645	2413.0	− 2432	−19	× 132 / 797	−3.1
4	5,647	2425.3	− 2473	−47.7	× 112 / 797	−6.7
5	5,650	2472.2	− 2502	−29.8	× 115 / 797	−4.3
6	5,651	2507.0	− 2531	−24	× 105 / 797	−3.2
7	5,653	2531.6	− 2552	−20.4	× 114 / 797	−2.9
8	5,655	2543.5	− 2567	−23.5	× 109 / 797	−3.2
11	5,658	2565.7	− 2583	−17.3	× 110 / 797	−2.4
Sum, rounded to a whole point						−26

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	5,113	2407.8	− 2432	−24.2	× 105 / 805	−3.2
4	5,115	2440.0	− 2473	−33	× 131 / 805	−5.4
5	5,116	2454.3	− 2502	−47.7	× 114 / 805	−6.8
6	5,119	2503.4	− 2531	−27.6	× 113 / 805	−3.9
7	5,120	2563.2	− 2552	11.2	× 108 / 805	1.5
8	5,122	2543.5	− 2567	−23.5	× 124 / 805	−3.6
11	5,124	2554.6	− 2583	−28.4	× 110 / 805	−3.9
Sum, rounded to a whole point						−25

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	5,219	2400.6	− 2432	−31.4	× 114 / 807	−4.4
4	5,220	2423.7	− 2473	−49.3	× 117 / 807	−7.1
5	5,222	2457.7	− 2502	−44.3	× 136 / 807	−7.5
6	5,224	2462.5	− 2531	−68.5	× 113 / 807	−9.6
7	5,227	2529.6	− 2552	−22.4	× 107 / 807	−3
8	5,228	2534.5	− 2567	−32.5	× 112 / 807	−4.5
11	5,231	2597.0	− 2583	14	× 108 / 807	1.9
Sum, rounded to a whole point						−34

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	5,222	2442.7	− 2432	10.7	× 90 / 789	1.2
4	5,225	2445.4	− 2473	−27.6	× 121 / 789	−4.2
5	5,226	2471.2	− 2502	−30.8	× 114 / 789	−4.5
6	5,229	2481.6	− 2531	−49.4	× 136 / 789	−8.5
7	5,230	2502.9	− 2552	−49.1	× 112 / 789	−7
8	5,233	2504.7	− 2567	−62.3	× 110 / 789	−8.7
11	5,234	2581.4	− 2583	−1.6	× 106 / 789	−0.2
Sum, rounded to a whole point						−32

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	5,258	2436.3	− 2432	4.3	× 102 / 785	0.6
4	5,259	2473.6	− 2473	0.6	× 90 / 785	0.1
5	5,260	2473.9	− 2502	−28.1	× 121 / 785	−4.3
6	5,261	2474.8	− 2531	−56.2	× 117 / 785	−8.4
7	5,262	2515.2	− 2552	−36.8	× 140 / 785	−6.6
8	5,263	2523.7	− 2567	−43.3	× 115 / 785	−6.3
11	5,264	2584.6	− 2583	1.6	× 100 / 785	0.2
Sum, rounded to a whole point						−25

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	5,097	2426.5	− 2432	−5.5	× 97 / 752	−0.7
4	5,098	2434.6	− 2473	−38.4	× 114 / 752	−5.8
5	5,099	2470.1	− 2502	−31.9	× 109 / 752	−4.6
6	5,100	2509.4	− 2531	−21.6	× 101 / 752	−2.9
7	5,101	2538.5	− 2552	−13.5	× 93 / 752	−1.7
8	5,102	2511.2	− 2567	−55.8	× 125 / 752	−9.3
11	5,103	2525.0	− 2583	−58	× 113 / 752	−8.7
Sum, rounded to a whole point						−34

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	5,099	2412.6	− 2432	−19.4	× 110 / 761	−2.8
4	5,100	2460.7	− 2473	−12.3	× 93 / 761	−1.5
5	5,101	2455.8	− 2502	−46.2	× 117 / 761	−7.1
6	5,102	2508.5	− 2531	−22.5	× 107 / 761	−3.2
7	5,103	2548.1	− 2552	−3.9	× 99 / 761	−0.5
8	5,104	2539.0	− 2567	−28	× 98 / 761	−3.6
11	5,105	2530.2	− 2583	−52.8	× 137 / 761	−9.5
Sum, rounded to a whole point						−28

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	5,034	2404.7	− 2432	−27.3	× 85 / 756	−3.1
4	5,035	2431.5	− 2473	−41.5	× 111 / 756	−6.1
5	5,036	2471.2	− 2502	−30.8	× 97 / 756	−4
6	5,037	2490.5	− 2531	−40.5	× 119 / 756	−6.4
7	5,038	2545.7	− 2552	−6.3	× 110 / 756	−0.9
8	5,039	2540.1	− 2567	−26.9	× 107 / 756	−3.8
11	5,040	2557.1	− 2583	−25.9	× 127 / 756	−4.4
Sum, rounded to a whole point						−29

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,998	2411.7	− 2432	−20.3	× 112 / 755	−3
4	4,999	2433.0	− 2473	−40	× 90 / 755	−4.8
5	5,000	2464.0	− 2502	−38	× 109 / 755	−5.5
6	5,001	2508.1	− 2531	−22.9	× 95 / 755	−2.9
7	5,002	2516.4	− 2552	−35.6	× 119 / 755	−5.6
8	5,003	2549.9	− 2567	−17.1	× 107 / 755	−2.4
11	5,004	2604.0	− 2583	21	× 123 / 755	3.4
Sum, rounded to a whole point						−21

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,984	2405.8	− 2432	−26.2	× 90 / 720	−3.3
4	4,985	2438.5	− 2473	−34.5	× 108 / 720	−5.2
5	4,986	2472.1	− 2502	−29.9	× 94 / 720	−3.9
6	4,987	2485.4	− 2531	−45.6	× 108 / 720	−6.8
7	4,988	2540.6	− 2552	−11.4	× 96 / 720	−1.5
8	4,989	2500.4	− 2567	−66.6	× 123 / 720	−11.4
11	4,990	2570.2	− 2583	−12.8	× 101 / 720	−1.8
Sum, rounded to a whole point						−34

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −26, −25, −34, −32, −25, −34, −28, −29, −21, −34 → −28.8
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 1 · 2016→2017: 9 · 2017→2018: 2 · 2018→2019: 7 · 2019→2022: 9 · 2022→2023: 6 · 2023→2024: 1 · 2024→2025: 8 · 2025→2026: 13 → average 6.2
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 6.2 × 2.66 = 16.5. Upper limit −12.3, lower limit −45.3.

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 — for a district, the total across its schools. From 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.

Pierce Joint Unified