La Ballona Elementary (Data source)
Source data for La Ballona 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 | 671714 | 2414 | - | 2436 | = | -22 | * | (85 | / | 289) | = | -6.47058823 | ||
| 4 | 671717 | 2484 | - | 2485 | = | -1 | * | (86 | / | 289) | = | -0.29757785 | ||
| 5 | 671718 | 2487 | - | 2528 | = | -41 | * | (118 | / | 289) | = | -16.74048442 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for La Ballona Elementary | -24 | ||||||||||||
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 | 21284 | 2415 | - | 2436 | = | -21 | * | (92 | / | 266) | = | -7.26315788 | ||
| 4 | 21285 | 2471 | - | 2485 | = | -14 | * | (87 | / | 266) | = | -4.57894737 | ||
| 5 | 21288 | 2506 | - | 2528 | = | -22 | * | (87 | / | 266) | = | -7.19548872 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for La Ballona Elementary | -19 | ||||||||||||
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 | 21670 | 2441 | - | 2436 | = | 5 | * | (95 | / | 282) | = | 1.68439716 | ||
| 4 | 21672 | 2499 | - | 2485 | = | 14 | * | (91 | / | 282) | = | 4.51773049 | ||
| 5 | 21673 | 2489 | - | 2528 | = | -39 | * | (96 | / | 282) | = | -13.27659571 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for La Ballona Elementary | -7 | ||||||||||||
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 | 21644 | 2457 | - | 2436 | = | 21 | * | (88 | / | 285) | = | 6.48421051 | ||
| 4 | 21647 | 2482 | - | 2485 | = | -3 | * | (105 | / | 285) | = | -1.10526316 | ||
| 5 | 21648 | 2522 | - | 2528 | = | -6 | * | (92 | / | 285) | = | -1.9368421 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for La Ballona Elementary | 3 | ||||||||||||
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 | 21814 | 2461 | - | 2436 | = | 25 | * | (90 | / | 294) | = | 7.6530612 | ||
| 4 | 21815 | 2505 | - | 2485 | = | 20 | * | (96 | / | 294) | = | 6.53061224 | ||
| 5 | 21816 | 2493 | - | 2528 | = | -35 | * | (108 | / | 294) | = | -12.85714283 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for La Ballona Elementary | 1 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -24 | -19 | -7 | 3 | 1 | -46.0 | -9.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 23.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -42.2
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 | 59% | 53% | 54% | 61% | 57% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Culver City Unified school district | County of Los Angeles
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.
La Ballona Elementary math proficiency
Zero+ meets standard.
51% less $meal
45% less $meal
42% less $meal
54% less $meal
51% 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 Culver City Unified (5)
| El Marino Elementary | El Rincon Elementary | Farragut Elementary |
| La Ballona Elementary | Linwood E. Howe Elementary |