Buford Elementary (Data source)
Source data for Buford 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 | 754964 | 2420 | - | 2436 | = | -16 | * | (116 | / | 364) | = | -5.09890109 | ||
| 4 | 754966 | 2441 | - | 2485 | = | -44 | * | (121 | / | 364) | = | -14.62637361 | ||
| 5 | 754968 | 2438 | - | 2528 | = | -90 | * | (127 | / | 364) | = | -31.40109882 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Buford Elementary | -51 | ||||||||||||
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 | 23723 | 2405 | - | 2436 | = | -31 | * | (115 | / | 355) | = | -10.04225349 | ||
| 4 | 23725 | 2463 | - | 2485 | = | -22 | * | (115 | / | 355) | = | -7.12676054 | ||
| 5 | 23726 | 2475 | - | 2528 | = | -53 | * | (125 | / | 355) | = | -18.66197183 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Buford Elementary | -36 | ||||||||||||
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 | 24217 | 2434 | - | 2436 | = | -2 | * | (115 | / | 346) | = | -0.66473988 | ||
| 4 | 24220 | 2462 | - | 2485 | = | -23 | * | (114 | / | 346) | = | -7.57803466 | ||
| 5 | 24222 | 2506 | - | 2528 | = | -22 | * | (117 | / | 346) | = | -7.43930636 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Buford Elementary | -16 | ||||||||||||
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 | 24236 | 2435 | - | 2436 | = | -1 | * | (94 | / | 322) | = | -0.29192547 | ||
| 4 | 24239 | 2463 | - | 2485 | = | -22 | * | (106 | / | 322) | = | -7.24223601 | ||
| 5 | 24240 | 2514 | - | 2528 | = | -14 | * | (122 | / | 322) | = | -5.30434782 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Buford Elementary | -13 | ||||||||||||
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 | 24410 | 2433 | - | 2436 | = | -3 | * | (107 | / | 307) | = | -1.0456026 | ||
| 4 | 24411 | 2484 | - | 2485 | = | -1 | * | (92 | / | 307) | = | -0.29967427 | ||
| 5 | 24412 | 2522 | - | 2528 | = | -6 | * | (108 | / | 307) | = | -2.11074918 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Buford Elementary | -3 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -51 | -36 | -16 | -13 | -3 | -119.0 | -23.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 33.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -80.8
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 | 92% | 95% | 95% | 93% | 91% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Lennox 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.
Buford Elementary math proficiency
Zero+ meets standard.
88% less $meal
86% less $meal
82% less $meal
84% less $meal
79% 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 Lennox (5)
| Buford Elementary | Dolores Huerta Elementary | Felton Elementary |
| Jefferson Elementary | Moffett Elementary |