Arthur E. Wright Middle (Data source)
Source data for Arthur E. Wright Middle
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 |
||
| 6 | 747483 | 2562 | - | 2552 | = | 10 | * | (291 | / | 849) | = | 3.42756183 | ||
| 7 | 747484 | 2583 | - | 2567 | = | 16 | * | (283 | / | 849) | = | 5.33333333 | ||
| 8 | 747487 | 2598 | - | 2586 | = | 12 | * | (275 | / | 849) | = | 3.88692578 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Arthur E. Wright Middle | 13 | ||||||||||||
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 |
||
| 6 | 23507 | 2576 | - | 2552 | = | 24 | * | (283 | / | 854) | = | 7.95316159 | ||
| 7 | 23509 | 2587 | - | 2567 | = | 20 | * | (290 | / | 854) | = | 6.79156908 | ||
| 8 | 23510 | 2596 | - | 2586 | = | 10 | * | (281 | / | 854) | = | 3.29039812 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Arthur E. Wright Middle | 18 | ||||||||||||
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 |
||
| 6 | 23980 | 2583 | - | 2552 | = | 31 | * | (291 | / | 859) | = | 10.50174619 | ||
| 7 | 23982 | 2585 | - | 2567 | = | 18 | * | (280 | / | 859) | = | 5.86728754 | ||
| 8 | 23984 | 2601 | - | 2586 | = | 15 | * | (288 | / | 859) | = | 5.0291036 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Arthur E. Wright Middle | 21 | ||||||||||||
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 |
||
| 6 | 23999 | 2570 | - | 2552 | = | 18 | * | (251 | / | 810) | = | 5.57777777 | ||
| 7 | 24000 | 2612 | - | 2567 | = | 45 | * | (283 | / | 810) | = | 15.72222222 | ||
| 8 | 24003 | 2604 | - | 2586 | = | 18 | * | (276 | / | 810) | = | 6.13333332 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Arthur E. Wright Middle | 27 | ||||||||||||
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 |
||
| 6 | 24174 | 2577 | - | 2552 | = | 25 | * | (256 | / | 786) | = | 8.14249363 | ||
| 7 | 24175 | 2599 | - | 2567 | = | 32 | * | (256 | / | 786) | = | 10.42239184 | ||
| 8 | 24176 | 2623 | - | 2586 | = | 37 | * | (274 | / | 786) | = | 12.8982188 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Arthur E. Wright Middle | 31 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 13 | 18 | 21 | 27 | 31 | 110.0 | 22.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 43.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 1.0
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% | 11% | 10% | 15% | 14% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Las Virgenes 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.
Arthur E. Wright Middle math proficiency
Zero+ meets standard.
10% less $meal
9% less $meal
8% less $meal
13% less $meal
12% 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.
Intermediate/Middle Schools (Public) schools in Las Virgenes Unified (3)
| Alice C. Stelle Middle | Arthur E. Wright Middle | Lindero Canyon Middle |