Willow Elementary (Data source)
Source data for Willow 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 | 749664 | 2501 | - | 2436 | = | 65 | * | (99 | / | 288) | = | 22.34375 | ||
| 4 | 749665 | 2525 | - | 2485 | = | 40 | * | (95 | / | 288) | = | 13.19444444 | ||
| 5 | 749668 | 2578 | - | 2528 | = | 50 | * | (94 | / | 288) | = | 16.3194444 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Willow Elementary | 52 | ||||||||||||
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 | 23570 | 2473 | - | 2436 | = | 37 | * | (87 | / | 281) | = | 11.45551598 | ||
| 4 | 23572 | 2550 | - | 2485 | = | 65 | * | (98 | / | 281) | = | 22.66903912 | ||
| 5 | 23574 | 2562 | - | 2528 | = | 34 | * | (96 | / | 281) | = | 11.61565834 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Willow Elementary | 46 | ||||||||||||
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 | 24044 | 2481 | - | 2436 | = | 45 | * | (101 | / | 297) | = | 15.3030303 | ||
| 4 | 24045 | 2541 | - | 2485 | = | 56 | * | (91 | / | 297) | = | 17.15824914 | ||
| 5 | 24047 | 2575 | - | 2528 | = | 47 | * | (105 | / | 297) | = | 16.61616159 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Willow Elementary | 49 | ||||||||||||
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 | 24062 | 2486 | - | 2436 | = | 50 | * | (107 | / | 296) | = | 18.0743243 | ||
| 4 | 24064 | 2544 | - | 2485 | = | 59 | * | (100 | / | 296) | = | 19.93243238 | ||
| 5 | 24066 | 2555 | - | 2528 | = | 27 | * | (89 | / | 296) | = | 8.11824323 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Willow Elementary | 46 | ||||||||||||
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 | 24238 | 2495 | - | 2436 | = | 59 | * | (98 | / | 309) | = | 18.71197408 | ||
| 4 | 24239 | 2553 | - | 2485 | = | 68 | * | (113 | / | 309) | = | 24.86731386 | ||
| 5 | 24240 | 2570 | - | 2528 | = | 42 | * | (98 | / | 309) | = | 13.32038833 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Willow Elementary | 57 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 52 | 46 | 49 | 46 | 57 | 250.0 | 50.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 62.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 38.0
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 | 3% | 4% | 5% | 9% | 9% |
| 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.
Willow Elementary math proficiency
Zero+ meets standard.
2% less $meal
3% less $meal
4% less $meal
8% less $meal
6% 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.
Elementary School (Public) schools in Las Virgenes Unified (8)
| Bay Laurel Elementary | Chaparral Elementary | Lupin Hill Elementary |
| Round Meadow Elementary | Sumac Elementary | White Oak Elementary |
| Willow Elementary | Yerba Buena Elementary |