Partnerships For Student-Centered Learning: 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.

Measured against the grade bars

The state's English test uses one scale for every grade, so a score means the same thing in grade 3 as in grade 11.

3rd The average 3rd grader scores 35 points under the grade 3 bar. 2397 vs. 2432.
4th The average 4th grader scores 30 points under the grade 4 bar. 2443 vs. 2473.
5th The average 5th grader scores 29 points under the grade 4 bar. 2445 vs. 2473. The 5th-grade bar is 2502.
6th The average 6th grader scores 19 points under the grade 5 bar. 2483 vs. 2502. The 6th-grade bar is 2531.
7th The average 7th grader scores just under the grade 6 bar. 2527 vs. 2531. The 7th-grade bar is 2552.
8th The average 8th grader scores 18 points under the grade 7 bar. 2534 vs. 2552. The 8th-grade bar is 2567.
11th The average 11th grader scores 13 points under the grade 11 bar. 2570 vs. 2583.

2018 results. The English test covers reading, writing, listening and research together. "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	54,584	2388.8	− 2432	−43.2	× 49 / 481	−4.4
4	54,587	2417.7	− 2473	−55.3	× 55 / 481	−6.3
5	54,588	2460.8	− 2502	−41.2	× 37 / 481	−3.2
6	54,591	2481.7	− 2531	−49.3	× 55 / 481	−5.6
7	54,592	2511.5	− 2552	−40.5	× 66 / 481	−5.6
8	54,595	2539.7	− 2567	−27.3	× 86 / 481	−4.9
11	54,596	2600.8	− 2583	17.8	× 133 / 481	4.9
Sum, rounded to a whole point						−25

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	50,695	2379.5	− 2432	−52.5	× 42 / 413	−5.3
4	50,697	2439.4	− 2473	−33.6	× 50 / 413	−4.1
5	50,699	2481.8	− 2502	−20.2	× 54 / 413	−2.6
6	50,701	2479.5	− 2531	−51.5	× 34 / 413	−4.2
7	50,704	2497.1	− 2552	−54.9	× 52 / 413	−6.9
8	50,706	2508.1	− 2567	−58.9	× 66 / 413	−9.4
11	50,708	2577.2	− 2583	−5.8	× 115 / 413	−1.6
Sum, rounded to a whole point						−34

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	52,140	2393.4	− 2432	−38.6	× 37 / 333	−4.3
4	52,142	2429.2	− 2473	−43.8	× 35 / 333	−4.6
5	52,143	2464.8	− 2502	−37.2	× 41 / 333	−4.6
6	52,145	2476.1	− 2531	−54.9	× 44 / 333	−7.3
7	52,148	2514.7	− 2552	−37.3	× 30 / 333	−3.4
8	52,149	2526.3	− 2567	−40.7	× 57 / 333	−7
11	52,152	2598.1	− 2583	15.1	× 89 / 333	4
Sum, rounded to a whole point						−27

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	52,186	2396.6	− 2432	−35.4	× 22 / 247	−3.2
4	52,187	2443.2	− 2473	−29.8	× 23 / 247	−2.8
5	52,190	2444.5	− 2502	−57.5	× 29 / 247	−6.8
6	52,191	2482.6	− 2531	−48.4	× 31 / 247	−6.1
7	52,194	2526.8	− 2552	−25.2	× 32 / 247	−3.3
8	52,195	2534.4	− 2567	−32.6	× 33 / 247	−4.4
11	52,198	2569.6	− 2583	−13.4	× 77 / 247	−4.2
Sum, rounded to a whole point						−31

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −25, −34, −27, −31 → −29.3
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 9 · 2016→2017: 7 · 2017→2018: 4 → average 6.7
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 6.7 × 2.66 = 17.8. Upper limit −11.5, lower limit −47.1.

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".

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.