Inspire Charter: 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 32 points under the grade 3 bar. 2400 vs. 2432.
4th The average 4th grader scores 30 points under the grade 4 bar. 2443 vs. 2473.
5th The average 5th grader scores 26 points under the grade 5 bar. 2476 vs. 2502.
6th The average 6th grader scores 14 points under the grade 6 bar. 2517 vs. 2531.
7th The average 7th grader scores 18 points under the grade 7 bar. 2534 vs. 2552.
8th The average 8th grader scores just under the grade 8 bar. 2565 vs. 2567.
11th The average 11th grader meets the grade 11 bar. 2587 vs. 2583.

2019 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
4	40,190	2438.8	− 2473	−34.2	× 17 / 150	−3.9
5	40,192	2458.3	− 2502	−43.7	× 23 / 150	−6.7
6	40,194	2514.3	− 2531	−16.7	× 29 / 150	−3.2
7	40,196	2539.4	− 2552	−12.6	× 31 / 150	−2.6
8	40,198	2530.8	− 2567	−36.2	× 33 / 150	−8
11	40,200	2543.5	− 2583	−39.5	× 17 / 150	−4.5
Sum, rounded to a whole point						−29

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	37,214	2395.0	− 2432	−37	× 119 / 743	−5.9
4	37,216	2444.7	− 2473	−28.3	× 108 / 743	−4.1
5	37,218	2467.0	− 2502	−35	× 109 / 743	−5.1
6	37,221	2503.7	− 2531	−27.3	× 132 / 743	−4.9
7	37,222	2524.0	− 2552	−28	× 118 / 743	−4.4
8	37,225	2543.9	− 2567	−23.1	× 107 / 743	−3.3
11	37,226	2575.5	− 2583	−7.5	× 50 / 743	−0.5
Sum, rounded to a whole point						−28

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,008	2392.3	− 2432	−39.7	× 143 / 943	−6
4	38,011	2437.2	− 2473	−35.8	× 186 / 943	−7.1
5	38,012	2474.6	− 2502	−27.4	× 157 / 943	−4.6
6	38,014	2504.0	− 2531	−27	× 124 / 943	−3.6
7	38,017	2532.7	− 2552	−19.3	× 148 / 943	−3
8	38,018	2554.2	− 2567	−12.8	× 137 / 943	−1.9
11	38,021	2600.7	− 2583	17.7	× 48 / 943	0.9
Sum, rounded to a whole point						−25

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	37,951	2404.6	− 2432	−27.4	× 221 / 1484	−4.1
4	37,953	2430.9	− 2473	−42.1	× 237 / 1484	−6.7
5	37,955	2483.2	− 2502	−18.8	× 260 / 1484	−3.3
6	37,957	2501.7	− 2531	−29.3	× 251 / 1484	−5
7	37,959	2552.4	− 2552	0.4	× 201 / 1484	0.1
8	37,961	2553.4	− 2567	−13.6	× 224 / 1484	−2.1
11	37,963	2558.1	− 2583	−24.9	× 90 / 1484	−1.5
Sum, rounded to a whole point						−23

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	38,157	2399.7	− 2432	−32.3	× 319 / 2018	−5.1
4	38,158	2443.3	− 2473	−29.7	× 346 / 2018	−5.1
5	38,159	2475.8	− 2502	−26.2	× 316 / 2018	−4.1
6	38,160	2517.1	− 2531	−13.9	× 321 / 2018	−2.2
7	38,161	2533.6	− 2552	−18.4	× 328 / 2018	−3
8	38,162	2565.4	− 2567	−1.6	× 261 / 2018	−0.2
11	38,163	2587.1	− 2583	4.1	× 127 / 2018	0.3
Sum, rounded to a whole point						−19

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −29, −28, −25, −23, −19 → −24.8
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 1 · 2016→2017: 3 · 2017→2018: 2 · 2018→2019: 4 → average 2.5
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 2.5 × 2.66 = 6.7. Upper limit −18.1, lower limit −31.5.

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, 2018–19.