Klamath-Trinity 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	13,789	2322.5	− 2432	−109.5	× 76 / 474	−17.6
4	13,790	2371.9	− 2473	−101.1	× 80 / 474	−17.1
5	13,793	2356.3	− 2502	−145.7	× 70 / 474	−21.5
6	13,794	2414.1	− 2531	−116.9	× 66 / 474	−16.3
7	13,797	2440.0	− 2552	−112	× 67 / 474	−15.8
8	13,798	2435.4	− 2567	−131.6	× 73 / 474	−20.3
11	13,801	2506.2	− 2583	−76.8	× 42 / 474	−6.8
Sum, rounded to a whole point						−115

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	12,819	2329.0	− 2432	−103	× 70 / 507	−14.2
4	12,820	2385.0	− 2473	−88	× 83 / 507	−14.4
5	12,823	2419.2	− 2502	−82.8	× 81 / 507	−13.2
6	12,824	2410.0	− 2531	−121	× 71 / 507	−16.9
7	12,826	2462.3	− 2552	−89.7	× 69 / 507	−12.2
8	12,829	2479.7	− 2567	−87.3	× 69 / 507	−11.9
11	12,830	2506.4	− 2583	−76.6	× 64 / 507	−9.7
Sum, rounded to a whole point						−93

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,154	2322.2	− 2432	−109.8	× 85 / 500	−18.7
4	13,156	2388.0	− 2473	−85	× 71 / 500	−12.1
5	13,157	2394.9	− 2502	−107.1	× 87 / 500	−18.6
6	13,159	2430.4	− 2531	−100.6	× 79 / 500	−15.9
7	13,161	2428.3	− 2552	−123.7	× 63 / 500	−15.6
8	13,163	2448.2	− 2567	−118.8	× 62 / 500	−14.7
11	13,166	2570.9	− 2583	−12.1	× 53 / 500	−1.3
Sum, rounded to a whole point						−97

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,167	2356.3	− 2432	−75.7	× 70 / 496	−10.7
4	13,170	2379.5	− 2473	−93.5	× 86 / 496	−16.2
5	13,171	2400.6	− 2502	−101.4	× 68 / 496	−13.9
6	13,174	2426.7	− 2531	−104.3	× 78 / 496	−16.4
7	13,175	2449.5	− 2552	−102.5	× 74 / 496	−15.3
8	13,178	2450.7	− 2567	−116.3	× 61 / 496	−14.3
11	13,179	2504.1	− 2583	−78.9	× 59 / 496	−9.4
Sum, rounded to a whole point						−96

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,290	2345.0	− 2432	−87	× 75 / 514	−12.7
4	13,291	2396.8	− 2473	−76.2	× 79 / 514	−11.7
5	13,292	2407.0	− 2502	−95	× 85 / 514	−15.7
6	13,293	2457.3	− 2531	−73.7	× 63 / 514	−9
7	13,294	2447.9	− 2552	−104.1	× 70 / 514	−14.2
8	13,295	2464.4	− 2567	−102.6	× 77 / 514	−15.4
11	13,296	2498.3	− 2583	−84.7	× 65 / 514	−10.7
Sum, rounded to a whole point						−89

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,315	2326.1	− 2432	−105.9	× 43 / 453	−10.1
4	13,316	2366.0	− 2473	−107	× 57 / 453	−13.5
5	13,317	2397.1	− 2502	−104.9	× 78 / 453	−18.1
6	13,318	2419.1	− 2531	−111.9	× 69 / 453	−17
7	13,319	2420.0	− 2552	−132	× 64 / 453	−18.6
8	13,320	2454.2	− 2567	−112.8	× 78 / 453	−19.4
11	13,321	2531.1	− 2583	−51.9	× 64 / 453	−7.3
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	13,292	2321.8	− 2432	−110.2	× 58 / 376	−17
4	13,293	2364.6	− 2473	−108.4	× 49 / 376	−14.1
5	13,294	2453.0	− 2502	−49	× 25 / 376	−3.3
6	13,295	2414.3	− 2531	−116.7	× 57 / 376	−17.7
7	13,296	2405.7	− 2552	−146.3	× 60 / 376	−23.3
8	13,297	2455.6	− 2567	−111.4	× 55 / 376	−16.3
11	13,298	2536.7	− 2583	−46.3	× 72 / 376	−8.9
Sum, rounded to a whole point						−101

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,253	2298.6	− 2432	−133.4	× 48 / 385	−16.6
4	13,254	2388.6	− 2473	−84.4	× 66 / 385	−14.5
5	13,255	2395.5	− 2502	−106.5	× 40 / 385	−11.1
6	13,256	2428.4	− 2531	−102.6	× 63 / 385	−16.8
7	13,257	2446.4	− 2552	−105.6	× 67 / 385	−18.4
8	13,258	2475.1	− 2567	−91.9	× 53 / 385	−12.7
11	13,259	2563.2	− 2583	−19.8	× 48 / 385	−2.5
Sum, rounded to a whole point						−92

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,219	2331.3	− 2432	−100.7	× 54 / 446	−12.2
4	13,220	2379.9	− 2473	−93.1	× 67 / 446	−14
5	13,221	2414.9	− 2502	−87.1	× 68 / 446	−13.3
6	13,222	2430.6	− 2531	−100.4	× 46 / 446	−10.4
7	13,223	2479.8	− 2552	−72.2	× 60 / 446	−9.7
8	13,224	2471.4	− 2567	−95.6	× 78 / 446	−16.7
11	13,225	2532.6	− 2583	−50.4	× 73 / 446	−8.2
Sum, rounded to a whole point						−84

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,219	2336.1	− 2432	−95.9	× 67 / 426	−15.1
4	13,220	2395.1	− 2473	−77.9	× 64 / 426	−11.7
5	13,221	2401.0	− 2502	−101	× 71 / 426	−16.8
6	13,222	2422.3	− 2531	−108.7	× 65 / 426	−16.6
7	13,223	2477.9	− 2552	−74.1	× 47 / 426	−8.2
8	13,224	2494.9	− 2567	−72.1	× 63 / 426	−10.7
11	13,225	2549.9	− 2583	−33.1	× 49 / 426	−3.8
Sum, rounded to a whole point						−83

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −115, −93, −97, −96, −89, −104, −101, −92, −84, −83 → −95.4
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 22 · 2016→2017: 4 · 2017→2018: 1 · 2018→2019: 7 · 2019→2022: 15 · 2022→2023: 3 · 2023→2024: 9 · 2024→2025: 8 · 2025→2026: 1 → average 7.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 7.8 × 2.66 = 20.7. Upper limit −74.7, lower limit −116.1.

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.

Klamath-Trinity Joint Unified