Westwood Elementary (Data source)
Source data for Westwood 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 | 2207861 | 2481 | - | 2436 | = | 45 | * | (129 | / | 388) | = | 14.96134017 | ||
| 4 | 2207862 | 2532 | - | 2485 | = | 47 | * | (134 | / | 388) | = | 16.23195873 | ||
| 5 | 2207865 | 2549 | - | 2528 | = | 21 | * | (125 | / | 388) | = | 6.76546391 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Westwood Elementary | 38 | ||||||||||||
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 | 67770 | 2487 | - | 2436 | = | 51 | * | (128 | / | 385) | = | 16.95584413 | ||
| 4 | 67771 | 2524 | - | 2485 | = | 39 | * | (128 | / | 385) | = | 12.96623375 | ||
| 5 | 67774 | 2551 | - | 2528 | = | 23 | * | (129 | / | 385) | = | 7.70649351 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Westwood Elementary | 38 | ||||||||||||
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 | 69570 | 2484 | - | 2436 | = | 48 | * | (119 | / | 366) | = | 15.60655738 | ||
| 4 | 69573 | 2549 | - | 2485 | = | 64 | * | (123 | / | 366) | = | 21.50819667 | ||
| 5 | 69575 | 2536 | - | 2528 | = | 8 | * | (124 | / | 366) | = | 2.71038251 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Westwood Elementary | 40 | ||||||||||||
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 | 69734 | 2482 | - | 2436 | = | 46 | * | (134 | / | 386) | = | 15.96891191 | ||
| 4 | 69735 | 2552 | - | 2485 | = | 67 | * | (125 | / | 386) | = | 21.69689113 | ||
| 5 | 69737 | 2562 | - | 2528 | = | 34 | * | (127 | / | 386) | = | 11.1865285 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Westwood Elementary | 49 | ||||||||||||
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 | 70255 | 2490 | - | 2436 | = | 54 | * | (139 | / | 405) | = | 18.5333333 | ||
| 4 | 70256 | 2546 | - | 2485 | = | 61 | * | (134 | / | 405) | = | 20.18271602 | ||
| 5 | 70257 | 2575 | - | 2528 | = | 47 | * | (132 | / | 405) | = | 15.31851848 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Westwood Elementary | 54 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 38 | 38 | 40 | 49 | 54 | 219.0 | 43.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 64.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 22.8
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% | 15% | 13% | 14% | 16% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Poway Unified school district | County of San Diego
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.
Westwood Elementary math proficiency
Zero+ meets standard.
9% less $meal
11% less $meal
9% less $meal
11% less $meal
13% 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.