Webster Elementary (Data source)
Source data for Webster 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 | 1108016 | 2483 | - | 2436 | = | 47 | * | (50 | / | 146) | = | 16.09589039 | ||
4 | 1108017 | 2510 | - | 2485 | = | 25 | * | (38 | / | 146) | = | 6.5068493 | ||
5 | 1108020 | 2570 | - | 2528 | = | 42 | * | (58 | / | 146) | = | 16.68493147 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Webster Elementary | 39 |
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 | 34646 | 2492 | - | 2436 | = | 56 | * | (62 | / | 150) | = | 23.14666665 | ||
4 | 34647 | 2538 | - | 2485 | = | 53 | * | (50 | / | 150) | = | 17.66666665 | ||
5 | 34650 | 2599 | - | 2528 | = | 71 | * | (38 | / | 150) | = | 17.98666664 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Webster Elementary | 59 |
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 | 35284 | 2482 | - | 2436 | = | 46 | * | (49 | / | 155) | = | 14.54193547 | ||
4 | 35285 | 2526 | - | 2485 | = | 41 | * | (60 | / | 155) | = | 15.87096773 | ||
5 | 35288 | 2607 | - | 2528 | = | 79 | * | (46 | / | 155) | = | 23.44516125 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Webster Elementary | 54 |
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 | 35296 | 2485 | - | 2436 | = | 49 | * | (37 | / | 146) | = | 12.41780819 | ||
4 | 35298 | 2519 | - | 2485 | = | 34 | * | (51 | / | 146) | = | 11.87671231 | ||
5 | 35300 | 2596 | - | 2528 | = | 68 | * | (58 | / | 146) | = | 27.01369856 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Webster Elementary | 51 |
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 | 35464 | 2464 | - | 2436 | = | 28 | * | (32 | / | 120) | = | 7.46666665 | ||
4 | 35465 | 2513 | - | 2485 | = | 28 | * | (39 | / | 120) | = | 9.1 | ||
5 | 35466 | 2581 | - | 2528 | = | 53 | * | (49 | / | 120) | = | 21.64166665 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Webster Elementary | 38 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
39 | 59 | 54 | 51 | 38 | 241.0 | 48.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 75.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 21.2
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 | 8% | 7% | 5% | 12% | 12% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Santa Monica-Malibu Unified school district County of Los Angeles
THIS chart shows what the school system "wants"
PLUS a "special" or "outside" cause of variation, parent education.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
Webster Elementary math proficiency
Zero+ meets standard.
7% less $meal
7% less $meal
4% less $meal
10% less $meal
9% 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 Santa Monica-Malibu Unified (9)
Edison Elementary | Franklin Elementary | Grant Elementary |
John Muir Elementary | Malibu Elementary | McKinley Elementary |
Roosevelt Elementary | Webster Elementary | Will Rogers Elementary |