Westmont Elementary (Data source)
Source data for Westmont 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 | 1508093 | 2415 | - | 2436 | = | -21 | * | (58 | / | 164) | = | -7.42682926 | ||
| 4 | 1508096 | 2446 | - | 2485 | = | -39 | * | (60 | / | 164) | = | -14.26829266 | ||
| 5 | 1508097 | 2507 | - | 2528 | = | -21 | * | (46 | / | 164) | = | -5.89024388 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Westmont Elementary | -28 | ||||||||||||
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 | 47272 | 2405 | - | 2436 | = | -31 | * | (54 | / | 180) | = | -9.3 | ||
| 4 | 47274 | 2455 | - | 2485 | = | -30 | * | (58 | / | 180) | = | -9.66666666 | ||
| 5 | 47277 | 2501 | - | 2528 | = | -27 | * | (68 | / | 180) | = | -10.19999998 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Westmont Elementary | -29 | ||||||||||||
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 | 48559 | 2433 | - | 2436 | = | -3 | * | (45 | / | 151) | = | -0.89403974 | ||
| 4 | 48560 | 2458 | - | 2485 | = | -27 | * | (50 | / | 151) | = | -8.94039733 | ||
| 5 | 48563 | 2500 | - | 2528 | = | -28 | * | (56 | / | 151) | = | -10.38410596 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Westmont Elementary | -20 | ||||||||||||
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 | 48571 | 2414 | - | 2436 | = | -22 | * | (44 | / | 142) | = | -6.81690139 | ||
| 4 | 48572 | 2482 | - | 2485 | = | -3 | * | (46 | / | 142) | = | -0.97183098 | ||
| 5 | 48575 | 2490 | - | 2528 | = | -38 | * | (52 | / | 142) | = | -13.91549295 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Westmont Elementary | -22 | ||||||||||||
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 | 48781 | 2414 | - | 2436 | = | -22 | * | (75 | / | 214) | = | -7.71028036 | ||
| 4 | 48782 | 2440 | - | 2485 | = | -45 | * | (74 | / | 214) | = | -15.56074764 | ||
| 5 | 48783 | 2506 | - | 2528 | = | -22 | * | (65 | / | 214) | = | -6.68224297 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Westmont Elementary | -30 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -28 | -29 | -20 | -22 | -30 | -129.0 | -25.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -13.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -37.8
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 | 70% | 69% | 73% | 72% | 79% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Ocean View 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.
Westmont Elementary math proficiency
Zero+ meets standard.
58% less $meal
59% less $meal
64% less $meal
68% 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.