Westpark Elementary (Data source)
Source data for Westpark 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 | 1582587 | 2497 | - | 2436 | = | 61 | * | (104 | / | 419) | = | 15.1408114 | ||
| 4 | 1582590 | 2550 | - | 2485 | = | 65 | * | (120 | / | 419) | = | 18.61575177 | ||
| 5 | 1582591 | 2584 | - | 2528 | = | 56 | * | (97 | / | 419) | = | 12.96420042 | ||
| 6 | 1582594 | 2611 | - | 2552 | = | 59 | * | (98 | / | 419) | = | 13.79952263 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Westpark Elementary | 61 | ||||||||||||
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 | 49518 | 2498 | - | 2436 | = | 62 | * | (110 | / | 448) | = | 15.22321427 | ||
| 4 | 49520 | 2550 | - | 2485 | = | 65 | * | (128 | / | 448) | = | 18.57142853 | ||
| 5 | 49522 | 2571 | - | 2528 | = | 43 | * | (111 | / | 448) | = | 10.65401785 | ||
| 6 | 49525 | 2635 | - | 2552 | = | 83 | * | (99 | / | 448) | = | 18.34151779 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Westpark Elementary | 63 | ||||||||||||
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 | 50882 | 2493 | - | 2436 | = | 57 | * | (103 | / | 473) | = | 12.41226215 | ||
| 4 | 50884 | 2555 | - | 2485 | = | 70 | * | (127 | / | 473) | = | 18.79492594 | ||
| 5 | 50886 | 2568 | - | 2528 | = | 40 | * | (130 | / | 473) | = | 10.99365748 | ||
| 6 | 50888 | 2625 | - | 2552 | = | 73 | * | (113 | / | 473) | = | 17.43974628 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Westpark Elementary | 60 | ||||||||||||
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 | 50919 | 2492 | - | 2436 | = | 56 | * | (113 | / | 485) | = | 13.04742264 | ||
| 4 | 50920 | 2558 | - | 2485 | = | 73 | * | (123 | / | 485) | = | 18.51340203 | ||
| 5 | 50923 | 2579 | - | 2528 | = | 51 | * | (127 | / | 485) | = | 13.35463917 | ||
| 6 | 50925 | 2628 | - | 2552 | = | 76 | * | (122 | / | 485) | = | 19.11752572 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Westpark Elementary | 64 | ||||||||||||
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 | 51126 | 2500 | - | 2436 | = | 64 | * | (116 | / | 504) | = | 14.73015872 | ||
| 4 | 51127 | 2547 | - | 2485 | = | 62 | * | (132 | / | 504) | = | 16.23809518 | ||
| 5 | 51128 | 2571 | - | 2528 | = | 43 | * | (124 | / | 504) | = | 10.57936508 | ||
| 6 | 51129 | 2612 | - | 2552 | = | 60 | * | (132 | / | 504) | = | 15.71428566 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Westpark Elementary | 57 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 61 | 63 | 60 | 64 | 57 | 305.0 | 61.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 67.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 55.0
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% | 13% | 13% | 16% | 18% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Irvine Unified school district | County of Orange
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.
Westpark Elementary math proficiency
Zero+ meets standard.
9% less $meal
9% less $meal
9% less $meal
13% less $meal
14% 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.