Billy Mitchell Elementary (Data source)
Source data for Billy Mitchell 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 | 751658 | 2371 | - | 2436 | = | -65 | * | (92 | / | 294) | = | -20.34013605 | ||
| 4 | 751659 | 2443 | - | 2485 | = | -42 | * | (89 | / | 294) | = | -12.7142857 | ||
| 5 | 751661 | 2448 | - | 2528 | = | -80 | * | (113 | / | 294) | = | -30.74829928 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Billy Mitchell Elementary | -64 | ||||||||||||
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 | 23625 | 2409 | - | 2436 | = | -27 | * | (73 | / | 248) | = | -7.94758063 | ||
| 4 | 23627 | 2455 | - | 2485 | = | -30 | * | (87 | / | 248) | = | -10.52419353 | ||
| 5 | 23628 | 2487 | - | 2528 | = | -41 | * | (88 | / | 248) | = | -14.54838707 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Billy Mitchell Elementary | -33 | ||||||||||||
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 | 24104 | 2400 | - | 2436 | = | -36 | * | (97 | / | 255) | = | -13.69411762 | ||
| 4 | 24105 | 2478 | - | 2485 | = | -7 | * | (70 | / | 255) | = | -1.92156862 | ||
| 5 | 24107 | 2468 | - | 2528 | = | -60 | * | (88 | / | 255) | = | -20.70588234 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Billy Mitchell Elementary | -36 | ||||||||||||
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 | 24124 | 2396 | - | 2436 | = | -40 | * | (76 | / | 241) | = | -12.61410788 | ||
| 4 | 24127 | 2451 | - | 2485 | = | -34 | * | (91 | / | 241) | = | -12.83817424 | ||
| 5 | 24128 | 2486 | - | 2528 | = | -42 | * | (74 | / | 241) | = | -12.89626552 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Billy Mitchell Elementary | -38 | ||||||||||||
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 | 24302 | 2409 | - | 2436 | = | -27 | * | (92 | / | 249) | = | -9.9759036 | ||
| 4 | 24303 | 2445 | - | 2485 | = | -40 | * | (70 | / | 249) | = | -11.24497988 | ||
| 5 | 24304 | 2468 | - | 2528 | = | -60 | * | (87 | / | 249) | = | -20.9638554 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Billy Mitchell Elementary | -42 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -64 | -33 | -36 | -38 | -42 | -213.0 | -42.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -6.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -78.6
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 | 86% | 81% | 84% | 85% | 85% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Lawndale Elementary 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.
Billy Mitchell Elementary math proficiency
Zero+ meets standard.
74% less $meal
70% less $meal
72% less $meal
73% less $meal
74% 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 Lawndale Elementary (6)
| Billy Mitchell Elementary | F. D. Roosevelt Elementary | Lucille J. Smith Elementary |
| Mark Twain Elementary | William Anderson Elementary | William Green Elementary |