Lodi Unified: math

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	79,145	2403.4	− 2436	−32.6	× 2332 / 15139	−5
4	79,146	2447.9	− 2485	−37.1	× 2220 / 15139	−5.4
5	79,149	2474.7	− 2528	−53.3	× 2199 / 15139	−7.7
6	79,150	2492.5	− 2552	−59.5	× 2144 / 15139	−8.4
7	79,153	2498.4	− 2567	−68.6	× 2179 / 15139	−9.9
8	79,154	2509.7	− 2586	−76.3	× 2140 / 15139	−10.8
11	79,157	2543.5	− 2628	−84.5	× 1925 / 15139	−10.7
Sum, rounded to a whole point						−58

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	73,335	2411.1	− 2436	−24.9	× 2127 / 15109	−3.5
4	73,337	2452.8	− 2485	−32.2	× 2371 / 15109	−5.1
5	73,338	2474.7	− 2528	−53.3	× 2244 / 15109	−7.9
6	73,341	2496.1	− 2552	−55.9	× 2201 / 15109	−8.1
7	73,343	2506.5	− 2567	−60.5	× 2081 / 15109	−8.3
8	73,344	2511.0	− 2586	−75	× 2173 / 15109	−10.8
11	73,347	2542.0	− 2628	−86	× 1912 / 15109	−10.9
Sum, rounded to a whole point						−55

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	75,298	2412.8	− 2436	−23.2	× 2170 / 15234	−3.3
4	75,300	2449.0	− 2485	−36	× 2167 / 15234	−5.1
5	75,302	2476.3	− 2528	−51.7	× 2374 / 15234	−8.1
6	75,304	2490.7	− 2552	−61.3	× 2227 / 15234	−9
7	75,306	2509.6	− 2567	−57.4	× 2196 / 15234	−8.3
8	75,307	2519.8	− 2586	−66.2	× 2109 / 15234	−9.2
11	75,310	2566.8	− 2628	−61.2	× 1991 / 15234	−8
Sum, rounded to a whole point						−51

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	75,493	2416.2	− 2436	−19.8	× 2049 / 15214	−2.7
4	75,494	2452.5	− 2485	−32.5	× 2183 / 15214	−4.7
5	75,497	2469.0	− 2528	−59	× 2197 / 15214	−8.5
6	75,498	2498.2	− 2552	−53.8	× 2376 / 15214	−8.4
7	75,501	2501.3	− 2567	−65.7	× 2169 / 15214	−9.4
8	75,502	2517.6	− 2586	−68.4	× 2201 / 15214	−9.9
11	75,505	2555.6	− 2628	−72.4	× 2039 / 15214	−9.7
Sum, rounded to a whole point						−53

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	76,022	2422.9	− 2436	−13.1	× 2222 / 15120	−1.9
4	76,023	2455.0	− 2485	−30	× 2056 / 15120	−4.1
5	76,024	2477.6	− 2528	−50.4	× 2157 / 15120	−7.2
6	76,025	2491.4	− 2552	−60.6	× 2159 / 15120	−8.7
7	76,026	2505.5	− 2567	−61.5	× 2304 / 15120	−9.4
8	76,027	2511.1	− 2586	−74.9	× 2148 / 15120	−10.6
11	76,028	2557.9	− 2628	−70.1	× 2074 / 15120	−9.6
Sum, rounded to a whole point						−51

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	74,581	2384.4	− 2436	−51.6	× 1742 / 11656	−7.7
4	74,582	2422.0	− 2485	−63	× 1779 / 11656	−9.6
5	74,583	2442.6	− 2528	−85.4	× 1773 / 11656	−13
6	74,584	2462.4	− 2552	−89.6	× 1695 / 11656	−13
7	74,585	2483.7	− 2567	−83.3	× 1637 / 11656	−11.7
8	74,586	2488.6	− 2586	−97.4	× 1654 / 11656	−13.8
11	74,587	2564.9	− 2628	−63.1	× 1376 / 11656	−7.4
Sum, rounded to a whole point						−76

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	76,168	2402.4	− 2436	−33.6	× 2000 / 14108	−4.8
4	76,169	2440.8	− 2485	−44.2	× 2022 / 14108	−6.3
5	76,170	2455.1	− 2528	−72.9	× 2082 / 14108	−10.8
6	76,171	2479.0	− 2552	−73	× 2121 / 14108	−11
7	76,172	2484.4	− 2567	−82.6	× 1904 / 14108	−11.1
8	76,173	2491.2	− 2586	−94.8	× 2019 / 14108	−13.6
11	76,174	2525.1	− 2628	−102.9	× 1960 / 14108	−14.3
Sum, rounded to a whole point						−72

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	76,150	2402.2	− 2436	−33.8	× 1985 / 14151	−4.7
4	76,151	2440.6	− 2485	−44.4	× 2011 / 14151	−6.3
5	76,152	2459.4	− 2528	−68.6	× 2023 / 14151	−9.8
6	76,153	2481.0	− 2552	−71	× 2086 / 14151	−10.5
7	76,154	2496.2	− 2567	−70.8	× 2070 / 14151	−10.4
8	76,155	2487.7	− 2586	−98.3	× 1930 / 14151	−13.4
11	76,156	2531.7	− 2628	−96.3	× 2046 / 14151	−13.9
Sum, rounded to a whole point						−69

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	76,145	2402.2	− 2436	−33.8	× 1944 / 13979	−4.7
4	76,146	2438.3	− 2485	−46.7	× 2038 / 13979	−6.8
5	76,147	2461.6	− 2528	−66.4	× 1989 / 13979	−9.4
6	76,148	2485.8	− 2552	−66.2	× 2027 / 13979	−9.6
7	76,149	2492.3	− 2567	−74.7	× 2005 / 13979	−10.7
8	76,150	2504.2	− 2586	−81.8	× 2031 / 13979	−11.9
11	76,151	2519.3	− 2628	−108.7	× 1945 / 13979	−15.1
Sum, rounded to a whole point						−68

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	75,818	2397.8	− 2436	−38.2	× 2012 / 14013	−5.5
4	75,819	2442.6	− 2485	−42.4	× 1985 / 14013	−6
5	75,820	2458.1	− 2528	−69.9	× 2046 / 14013	−10.2
6	75,821	2491.9	− 2552	−60.1	× 1994 / 14013	−8.6
7	75,822	2501.0	− 2567	−66	× 2001 / 14013	−9.4
8	75,823	2499.3	− 2586	−86.7	× 2038 / 14013	−12.6
11	75,824	2519.9	− 2628	−108.1	× 1937 / 14013	−14.9
Sum, rounded to a whole point						−67

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	75,728	2404.2	− 2436	−31.8	× 1886 / 13543	−4.4
4	75,729	2440.7	− 2485	−44.3	× 1993 / 13543	−6.5
5	75,730	2465.5	− 2528	−62.5	× 1973 / 13543	−9.1
6	75,731	2485.1	− 2552	−66.9	× 2008 / 13543	−9.9
7	75,732	2502.4	− 2567	−64.6	× 1901 / 13543	−9.1
8	75,733	2509.3	− 2586	−76.7	× 1964 / 13543	−11.1
11	75,734	2536.1	− 2628	−91.9	× 1818 / 13543	−12.3
Sum, rounded to a whole point						−62

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −58, −55, −51, −53, −51, −76, −72, −69, −68, −67, −62 → −62
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 3 · 2016→2017: 4 · 2017→2018: 2 · 2018→2019: 2 · 2019→2021: 25 · 2021→2022: 4 · 2022→2023: 3 · 2023→2024: 1 · 2024→2025: 1 · 2025→2026: 5 → average 5
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 5 × 2.66 = 13.3. Upper limit −48.7, lower limit −75.3.

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.

Lodi Unified

Step 1 · Each year's result

2015 from sb_ca2015_1_csv_v3.zip

2016 from sb_ca2016_1_csv_v3.zip

2017 from sb_ca2017_1_csv_v2.zip

2018 from sb_ca2018_1_csv_v3.zip

2019 from sb_ca2019_1_csv_v4.zip

2021 from sb_ca2021_1_csv_v2.zip

2022 from sb_ca2022_1_csv_v1.zip

2023 from sb_ca2023_1_csv_v1.zip

2024 from sb_ca2024_1_csv_v1.zip

2025 from sb_ca2025_1_csv_v1.zip

2026 from sb_ca2026_1_csv_v1.zip

Step 2 · The average and the normal range

Step 3 · Free or reduced-price meals

Schools in Lodi Unified

Elementary schools

K–8 schools

Middle schools

High schools

Alternative and special schools

Charter schools in Lodi Unified

Elementary schools

K–8 schools

Middle schools

High schools

K–12 schools