Cedarcreek Elementary: english

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	37,325	2409.2	− 2432	−22.8	× 78 / 277	−6.4
4	37,327	2461.1	− 2473	−11.9	× 82 / 277	−3.5
5	37,329	2511.2	− 2502	9.2	× 54 / 277	1.8
6	37,331	2514.3	− 2531	−16.7	× 63 / 277	−3.8
Sum, rounded to a whole point						−12

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	34,722	2421.9	− 2432	−10.1	× 85 / 300	−2.9
4	34,724	2468.6	− 2473	−4.4	× 80 / 300	−1.2
5	34,727	2494.3	− 2502	−7.7	× 80 / 300	−2.1
6	34,728	2571.3	− 2531	40.3	× 55 / 300	7.4
Sum, rounded to a whole point						1

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,369	2381.9	− 2432	−50.1	× 53 / 287	−9.3
4	35,370	2454.4	− 2473	−18.6	× 81 / 287	−5.2
5	35,372	2487.6	− 2502	−14.4	× 74 / 287	−3.7
6	35,375	2541.4	− 2531	10.4	× 79 / 287	2.9
Sum, rounded to a whole point						−15

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,379	2400.7	− 2432	−31.3	× 54 / 274	−6.2
4	35,381	2439.5	− 2473	−33.5	× 59 / 274	−7.2
5	35,383	2482.8	− 2502	−19.2	× 80 / 274	−5.6
6	35,385	2535.9	− 2531	4.9	× 81 / 274	1.4
Sum, rounded to a whole point						−18

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,541	2430.3	− 2432	−1.7	× 66 / 255	−0.4
4	35,542	2476.0	− 2473	3	× 52 / 255	0.6
5	35,543	2492.5	− 2502	−9.5	× 57 / 255	−2.1
6	35,544	2554.2	− 2531	23.2	× 80 / 255	7.3
Sum, rounded to a whole point						5

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,430	2418.5	− 2432	−13.5	× 40 / 209	−2.6
4	35,431	2459.7	− 2473	−13.3	× 54 / 209	−3.4
5	35,432	2504.2	− 2502	2.2	× 56 / 209	0.6
6	35,433	2563.6	− 2531	32.6	× 59 / 209	9.2
Sum, rounded to a whole point						4

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,435	2406.9	− 2432	−25.1	× 47 / 212	−5.6
4	35,436	2488.5	− 2473	15.5	× 45 / 212	3.3
5	35,437	2463.3	− 2502	−38.7	× 58 / 212	−10.6
6	35,438	2502.6	− 2531	−28.4	× 62 / 212	−8.3
Sum, rounded to a whole point						−21

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,297	2441.9	− 2432	9.9	× 55 / 213	2.6
4	35,298	2433.5	− 2473	−39.5	× 50 / 213	−9.3
5	35,299	2502.3	− 2502	0.3	× 45 / 213	0.1
6	35,300	2554.0	− 2531	23	× 63 / 213	6.8
Sum, rounded to a whole point						0

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,148	2436.3	− 2432	4.3	× 63 / 217	1.2
4	35,149	2478.4	− 2473	5.4	× 53 / 217	1.3
5	35,150	2495.5	− 2502	−6.5	× 52 / 217	−1.6
6	35,151	2580.8	− 2531	49.8	× 49 / 217	11.2
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. −12, 1, −15, −18, 5, 4, −21, 0, 12 → −4.9
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 13 · 2016→2017: 16 · 2017→2018: 3 · 2018→2019: 23 · 2019→2022: 1 · 2022→2023: 25 · 2023→2024: 21 · 2024→2025: 12 → average 14.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 14.3 × 2.66 = 38. Upper limit 33.1, lower limit −42.9.

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.