Leonard G. Westhoff Elementary (Data source)
Source data for Leonard G. Westhoff 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 | 1192131 | 2477 | - | 2436 | = | 41 | * | (101 | / | 320) | = | 12.940625 | ||
| 4 | 1192132 | 2542 | - | 2485 | = | 57 | * | (104 | / | 320) | = | 18.525 | ||
| 5 | 1192135 | 2570 | - | 2528 | = | 42 | * | (115 | / | 320) | = | 15.09375 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Leonard G. Westhoff Elementary | 47 | ||||||||||||
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 | 37082 | 2501 | - | 2436 | = | 65 | * | (110 | / | 329) | = | 21.73252276 | ||
| 4 | 37083 | 2544 | - | 2485 | = | 59 | * | (104 | / | 329) | = | 18.6504559 | ||
| 5 | 37085 | 2586 | - | 2528 | = | 58 | * | (115 | / | 329) | = | 20.27355618 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Leonard G. Westhoff Elementary | 61 | ||||||||||||
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 | 37869 | 2503 | - | 2436 | = | 67 | * | (104 | / | 333) | = | 20.9249249 | ||
| 4 | 37872 | 2560 | - | 2485 | = | 75 | * | (124 | / | 333) | = | 27.9279279 | ||
| 5 | 37873 | 2572 | - | 2528 | = | 44 | * | (105 | / | 333) | = | 13.87387386 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Leonard G. Westhoff Elementary | 63 | ||||||||||||
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 | 37808 | 2500 | - | 2436 | = | 64 | * | (104 | / | 335) | = | 19.8686567 | ||
| 4 | 37810 | 2555 | - | 2485 | = | 70 | * | (105 | / | 335) | = | 21.94029845 | ||
| 5 | 37812 | 2595 | - | 2528 | = | 67 | * | (126 | / | 335) | = | 25.19999993 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Leonard G. Westhoff Elementary | 67 | ||||||||||||
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 | 38018 | 2511 | - | 2436 | = | 75 | * | (93 | / | 319) | = | 21.86520375 | ||
| 4 | 38019 | 2552 | - | 2485 | = | 67 | * | (104 | / | 319) | = | 21.84326014 | ||
| 5 | 38020 | 2583 | - | 2528 | = | 55 | * | (122 | / | 319) | = | 21.03448276 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Leonard G. Westhoff Elementary | 65 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 47 | 61 | 63 | 67 | 65 | 303.0 | 60.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 81.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 39.6
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 | 12% | 10% | 9% | 15% | 16% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Walnut Valley Unified school district | County of Los Angeles
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.
Leonard G. Westhoff Elementary math proficiency
Zero+ meets standard.
5% less $meal
6% less $meal
6% less $meal
13% less $meal
14% 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.