Katherine Elementary (Data source)
Source data for Katherine Elementary
2015
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 3 | 3137517 | 2425 | - | 2436 | = | -11 | * | (58 | / | 232) | = | -2.75 | ||
| 4 | 3137518 | 2463 | - | 2485 | = | -22 | * | (53 | / | 232) | = | -5.02586205 | ||
| 5 | 3137521 | 2485 | - | 2528 | = | -43 | * | (58 | / | 232) | = | -10.75 | ||
| 6 | 3137522 | 2519 | - | 2552 | = | -33 | * | (63 | / | 232) | = | -8.96120689 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Katherine Elementary | -27 | ||||||||||||
2016
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 3 | 96743 | 2400 | - | 2436 | = | -36 | * | (60 | / | 218) | = | -9.90825685 | ||
| 4 | 96744 | 2469 | - | 2485 | = | -16 | * | (56 | / | 218) | = | -4.11009173 | ||
| 5 | 96747 | 2487 | - | 2528 | = | -41 | * | (56 | / | 218) | = | -10.53211005 | ||
| 6 | 96749 | 2532 | - | 2552 | = | -20 | * | (46 | / | 218) | = | -4.22018348 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Katherine Elementary | -29 | ||||||||||||
2017
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 3 | 99543 | 2421 | - | 2436 | = | -15 | * | (49 | / | 220) | = | -3.34090908 | ||
| 4 | 99546 | 2491 | - | 2485 | = | 6 | * | (63 | / | 220) | = | 1.71818182 | ||
| 5 | 99548 | 2498 | - | 2528 | = | -30 | * | (56 | / | 220) | = | -7.63636362 | ||
| 6 | 99550 | 2535 | - | 2552 | = | -17 | * | (52 | / | 220) | = | -4.01818181 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Katherine Elementary | -13 | ||||||||||||
2018
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 3 | 99703 | 2424 | - | 2436 | = | -12 | * | (35 | / | 185) | = | -2.27027027 | ||
| 4 | 99705 | 2454 | - | 2485 | = | -31 | * | (48 | / | 185) | = | -8.04324323 | ||
| 5 | 99707 | 2491 | - | 2528 | = | -37 | * | (57 | / | 185) | = | -11.4 | ||
| 6 | 99709 | 2526 | - | 2552 | = | -26 | * | (45 | / | 185) | = | -6.32432432 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Katherine Elementary | -28 | ||||||||||||
2019
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 3 | 100368 | 2426 | - | 2436 | = | -10 | * | (43 | / | 166) | = | -2.59036144 | ||
| 4 | 100369 | 2490 | - | 2485 | = | 5 | * | (35 | / | 166) | = | 1.05421687 | ||
| 5 | 100370 | 2480 | - | 2528 | = | -48 | * | (48 | / | 166) | = | -13.87951805 | ||
| 6 | 100371 | 2538 | - | 2552 | = | -14 | * | (40 | / | 166) | = | -3.37349397 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Katherine Elementary | -19 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -27 | -29 | -13 | -28 | -19 | -116.0 | -23.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -5.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -41.2
For the lines, you have the data necessary to plot the chart.
Very last step
The percent of students getting a Free or Reduced Price Meal comes from the following sources:
| 2015 | 2016 | 2017 | 2018 | 2019 | |
|---|---|---|---|---|---|
| Percent | 33% | 32% | 32% | 36% | 38% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Simi Valley Unified school district | County of Ventura
THIS chart shows what the school system "wants"
PLUS a "special" or "outside" cause of variation: wealth/poverty.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
Katherine Elementary math proficiency
Zero+ meets standard.
21% less $meal
26% less $meal
25% less $meal
30% less $meal
31% less $meal
• Any result above zero is proficient; below is not proficient. • There is a 99% chance that results will remain the same in coming years, which is to say, between the Upper and Lower Control Limits (the gray lines). • The houses with the % of students receiving a Free or Reduced Price Meal is a measure of wealth/poverty.