Stanwood A. Murphy Elementary: 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.

Measured against the grade bars

The state's math test uses one scale for every grade, so a score means the same thing in grade 3 as in grade 8.

3rd The average 3rd grader meets the grade 3 bar. 2464 vs. 2436.
4th The average 4th grader meets the grade 4 bar. 2533 vs. 2485.
5th The average 5th grader meets the grade 5 bar. 2616 vs. 2528.
6th The average 6th grader meets the grade 6 bar. 2557 vs. 2552.
7th The average 7th grader scores just under the grade 7 bar. 2560 vs. 2567.
8th The average 8th grader scores 20 points under the grade 6 bar. 2532 vs. 2552. The 8th-grade bar is 2586.

2026 results. "Meets standard" is the state's mark for being on track for that grade.

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	14,145	2349.1	− 2436	−86.9	× 32 / 152	−18.3
4	14,146	2437.3	− 2485	−47.7	× 18 / 152	−5.6
5	14,149	2435.8	− 2528	−92.2	× 32 / 152	−19.4
6	14,150	2487.9	− 2552	−64.1	× 31 / 152	−13.1
7	14,153	2535.4	− 2567	−31.6	× 18 / 152	−3.7
8	14,154	2539.8	− 2586	−46.2	× 21 / 152	−6.4
Sum, rounded to a whole point						−67

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,165	2418.2	− 2436	−17.8	× 27 / 155	−3.1
4	13,166	2412.3	− 2485	−72.7	× 30 / 155	−14.1
5	13,168	2475.1	− 2528	−52.9	× 21 / 155	−7.2
6	13,171	2533.7	− 2552	−18.3	× 29 / 155	−3.4
7	13,172	2570.0	− 2567	3	× 25 / 155	0.5
8	13,174	2593.0	− 2586	7	× 23 / 155	1
Sum, rounded to a whole point						−26

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,495	2402.2	− 2436	−33.8	× 21 / 141	−5
4	13,498	2441.0	− 2485	−44	× 26 / 141	−8.1
5	13,499	2438.0	− 2528	−90	× 24 / 141	−15.3
6	13,501	2521.9	− 2552	−30.1	× 16 / 141	−3.4
7	13,503	2573.4	− 2567	6.4	× 30 / 141	1.4
8	13,505	2584.5	− 2586	−1.5	× 24 / 141	−0.3
Sum, rounded to a whole point						−31

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,492	2404.9	− 2436	−31.1	× 18 / 137	−4.1
4	13,493	2425.3	− 2485	−59.7	× 24 / 137	−10.5
5	13,496	2444.1	− 2528	−83.9	× 24 / 137	−14.7
6	13,497	2507.0	− 2552	−45	× 23 / 137	−7.6
7	13,500	2586.5	− 2567	19.5	× 17 / 137	2.4
8	13,501	2576.8	− 2586	−9.2	× 31 / 137	−2.1
Sum, rounded to a whole point						−36

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,611	2400.3	− 2436	−35.7	× 19 / 120	−5.7
4	13,612	2467.3	− 2485	−17.7	× 18 / 120	−2.7
5	13,613	2504.0	− 2528	−24	× 21 / 120	−4.2
6	13,614	2552.3	− 2552	0.3	× 24 / 120	0.1
7	13,615	2520.0	− 2567	−47	× 20 / 120	−7.8
8	13,616	2634.2	− 2586	48.2	× 18 / 120	7.2
Sum, rounded to a whole point						−13

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,377	2442.6	− 2436	6.6	× 20 / 127	1
4	13,378	2486.3	− 2485	1.3	× 20 / 127	0.2
5	13,379	2449.2	− 2528	−78.8	× 18 / 127	−11.2
6	13,380	2547.2	− 2552	−4.8	× 19 / 127	−0.7
7	13,381	2552.7	− 2567	−14.3	× 23 / 127	−2.6
8	13,382	2560.1	− 2586	−25.9	× 27 / 127	−5.5
Sum, rounded to a whole point						−19

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,634	2424.2	− 2436	−11.8	× 27 / 121	−2.6
4	13,635	2438.6	− 2485	−46.4	× 21 / 121	−8.1
5	13,636	2450.4	− 2528	−77.6	× 19 / 121	−12.2
6	13,637	2531.3	− 2552	−20.7	× 16 / 121	−2.7
7	13,638	2598.6	− 2567	31.6	× 18 / 121	4.7
8	13,639	2576.7	− 2586	−9.3	× 20 / 121	−1.5
Sum, rounded to a whole point						−22

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,611	2386.0	− 2436	−50	× 12 / 106	−5.7
4	13,612	2423.1	− 2485	−61.9	× 22 / 106	−12.8
5	13,613	2445.6	− 2528	−82.4	× 19 / 106	−14.8
6	13,614	2528.0	− 2552	−24	× 22 / 106	−5
7	13,615	2555.8	− 2567	−11.2	× 13 / 106	−1.4
8	13,616	2554.5	− 2586	−31.5	× 18 / 106	−5.3
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	13,578	2465.1	− 2436	29.1	× 17 / 124	4
4	13,579	2457.2	− 2485	−27.8	× 17 / 124	−3.8
5	13,580	2574.6	− 2528	46.6	× 22 / 124	8.3
6	13,581	2544.7	− 2552	−7.3	× 23 / 124	−1.4
7	13,582	2543.1	− 2567	−23.9	× 27 / 124	−5.2
8	13,583	2486.0	− 2586	−100	× 18 / 124	−14.5
Sum, rounded to a whole point						−13

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,542	2480.0	− 2436	44	× 23 / 132	7.7
4	13,543	2497.6	− 2485	12.6	× 18 / 132	1.7
5	13,544	2629.3	− 2528	101.3	× 16 / 132	12.3
6	13,545	2595.8	− 2552	43.8	× 24 / 132	8
7	13,546	2596.3	− 2567	29.3	× 23 / 132	5.1
8	13,547	2580.1	− 2586	−5.9	× 28 / 132	−1.3
Sum, rounded to a whole point						33

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	13,546	2463.6	− 2436	27.6	× 17 / 117	4
4	13,547	2533.3	− 2485	48.3	× 20 / 117	8.3
5	13,548	2615.7	− 2528	87.7	× 14 / 117	10.5
6	13,549	2556.8	− 2552	4.8	× 20 / 117	0.8
7	13,550	2559.9	− 2567	−7.1	× 23 / 117	−1.4
8	13,551	2531.7	− 2586	−54.3	× 23 / 117	−10.7
Sum, rounded to a whole point						12

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −67, −26, −31, −36, −13, −19, −22, −45, −13, 33, 12 → −20.6
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 41 · 2016→2017: 5 · 2017→2018: 5 · 2018→2019: 23 · 2019→2021: 6 · 2021→2022: 3 · 2022→2023: 23 · 2023→2024: 32 · 2024→2025: 46 · 2025→2026: 21 → average 20.5
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 20.5 × 2.66 = 54.5. Upper limit 33.9, lower limit −75.1.

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. From 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.