Wren Avenue Elementary (Data source)
Source data for Wren Avenue 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 | 215696 | 2387 | - | 2436 | = | -49 | * | (90 | / | 246) | = | -17.92682924 | ||
4 | 215699 | 2438 | - | 2485 | = | -47 | * | (74 | / | 246) | = | -14.13821138 | ||
5 | 215700 | 2444 | - | 2528 | = | -84 | * | (82 | / | 246) | = | -27.99999997 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Wren Avenue Elementary | -60 |
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 | 6381 | 2379 | - | 2436 | = | -57 | * | (110 | / | 270) | = | -23.2222222 | ||
4 | 6383 | 2438 | - | 2485 | = | -47 | * | (90 | / | 270) | = | -15.66666665 | ||
5 | 6386 | 2455 | - | 2528 | = | -73 | * | (70 | / | 270) | = | -18.92592591 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Wren Avenue Elementary | -58 |
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 | 6558 | 2408 | - | 2436 | = | -28 | * | (73 | / | 253) | = | -8.07905137 | ||
4 | 6560 | 2432 | - | 2485 | = | -53 | * | (97 | / | 253) | = | -20.32015808 | ||
5 | 6562 | 2455 | - | 2528 | = | -73 | * | (83 | / | 253) | = | -23.94861659 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Wren Avenue Elementary | -52 |
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 | 6562 | 2404 | - | 2436 | = | -32 | * | (59 | / | 196) | = | -9.63265306 | ||
4 | 6563 | 2449 | - | 2485 | = | -36 | * | (52 | / | 196) | = | -9.55102039 | ||
5 | 6566 | 2446 | - | 2528 | = | -82 | * | (85 | / | 196) | = | -35.56122446 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Wren Avenue 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 | 6617 | 2370 | - | 2436 | = | -66 | * | (61 | / | 166) | = | -24.25301201 | ||
4 | 6618 | 2430 | - | 2485 | = | -55 | * | (57 | / | 166) | = | -18.88554212 | ||
5 | 6619 | 2481 | - | 2528 | = | -47 | * | (48 | / | 166) | = | -13.59036142 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Wren Avenue Elementary | -57 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-60 | -58 | -52 | -55 | -57 | -282.0 | -56.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -47.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -65.4
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 | 72% | 77% | 72% | 77% | 74% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Mt. Diablo Unified school district County of Contra Costa
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.
Wren Avenue Elementary math proficiency
Zero+ meets standard.
61% less $meal
68% less $meal
63% less $meal
71% less $meal
69% 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.