Wilson Elementary (Data source)
Source data for Wilson 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 | 1503110 | 2426 | - | 2436 | = | -10 | * | (78 | / | 290) | = | -2.68965517 | ||
| 4 | 1503111 | 2438 | - | 2485 | = | -47 | * | (60 | / | 290) | = | -9.7241379 | ||
| 5 | 1503114 | 2466 | - | 2528 | = | -62 | * | (74 | / | 290) | = | -15.82068961 | ||
| 6 | 1503115 | 2490 | - | 2552 | = | -62 | * | (78 | / | 290) | = | -16.67586205 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Wilson Elementary | -45 | ||||||||||||
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 | 47124 | 2427 | - | 2436 | = | -9 | * | (68 | / | 274) | = | -2.23357664 | ||
| 4 | 47127 | 2458 | - | 2485 | = | -27 | * | (75 | / | 274) | = | -7.39051093 | ||
| 5 | 47128 | 2473 | - | 2528 | = | -55 | * | (59 | / | 274) | = | -11.84306569 | ||
| 6 | 47131 | 2477 | - | 2552 | = | -75 | * | (72 | / | 274) | = | -19.70802915 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Wilson Elementary | -41 | ||||||||||||
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 | 48411 | 2437 | - | 2436 | = | 1 | * | (64 | / | 250) | = | 0.256 | ||
| 4 | 48412 | 2443 | - | 2485 | = | -42 | * | (64 | / | 250) | = | -10.752 | ||
| 5 | 48415 | 2473 | - | 2528 | = | -55 | * | (70 | / | 250) | = | -15.4 | ||
| 6 | 48416 | 2463 | - | 2552 | = | -89 | * | (52 | / | 250) | = | -18.512 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Wilson Elementary | -44 | ||||||||||||
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 | 48421 | 2426 | - | 2436 | = | -10 | * | (50 | / | 253) | = | -1.97628458 | ||
| 4 | 48423 | 2443 | - | 2485 | = | -42 | * | (65 | / | 253) | = | -10.79051383 | ||
| 5 | 48425 | 2448 | - | 2528 | = | -80 | * | (68 | / | 253) | = | -21.50197624 | ||
| 6 | 48427 | 2476 | - | 2552 | = | -76 | * | (70 | / | 253) | = | -21.02766792 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Wilson Elementary | -55 | ||||||||||||
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 | 48640 | 2410 | - | 2436 | = | -26 | * | (62 | / | 233) | = | -6.91845492 | ||
| 4 | 48641 | 2448 | - | 2485 | = | -37 | * | (44 | / | 233) | = | -6.98712444 | ||
| 5 | 48642 | 2458 | - | 2528 | = | -70 | * | (64 | / | 233) | = | -19.22746777 | ||
| 6 | 48643 | 2460 | - | 2552 | = | -92 | * | (63 | / | 233) | = | -24.87553647 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Wilson Elementary | -58 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -45 | -41 | -44 | -55 | -58 | -243.0 | -48.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -27.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -69.6
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 | 84% | 93% | 87% | 89% | 88% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Newport-Mesa Unified school district | County of Orange
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.
Wilson Elementary math proficiency
Zero+ meets standard.
76% less $meal
81% less $meal
77% less $meal
81% less $meal
81% 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.