Greenwood Elementary (Data source)
Source data for Greenwood 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 | 1036243 | 2381 | - | 2436 | = | -55 | * | (162 | / | 471) | = | -18.91719742 | ||
| 4 | 1036244 | 2425 | - | 2485 | = | -60 | * | (159 | / | 471) | = | -20.25477702 | ||
| 5 | 1036247 | 2417 | - | 2528 | = | -111 | * | (150 | / | 471) | = | -35.35031841 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Greenwood Elementary | -75 | ||||||||||||
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 | 32532 | 2416 | - | 2436 | = | -20 | * | (130 | / | 449) | = | -5.79064586 | ||
| 4 | 32535 | 2413 | - | 2485 | = | -72 | * | (160 | / | 449) | = | -25.65701554 | ||
| 5 | 32536 | 2453 | - | 2528 | = | -75 | * | (159 | / | 449) | = | -26.55902003 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Greenwood Elementary | -58 | ||||||||||||
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 | 33104 | 2415 | - | 2436 | = | -21 | * | (135 | / | 424) | = | -6.68632075 | ||
| 4 | 33106 | 2455 | - | 2485 | = | -30 | * | (130 | / | 424) | = | -9.19811319 | ||
| 5 | 33108 | 2443 | - | 2528 | = | -85 | * | (159 | / | 424) | = | -31.875 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Greenwood Elementary | -48 | ||||||||||||
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 | 33123 | 2414 | - | 2436 | = | -22 | * | (143 | / | 398) | = | -7.9045226 | ||
| 4 | 33125 | 2423 | - | 2485 | = | -62 | * | (132 | / | 398) | = | -20.56281404 | ||
| 5 | 33127 | 2463 | - | 2528 | = | -65 | * | (123 | / | 398) | = | -20.08793969 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Greenwood Elementary | -49 | ||||||||||||
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 | 33298 | 2401 | - | 2436 | = | -35 | * | (119 | / | 384) | = | -10.84635416 | ||
| 4 | 33299 | 2422 | - | 2485 | = | -63 | * | (135 | / | 384) | = | -22.1484375 | ||
| 5 | 33300 | 2463 | - | 2528 | = | -65 | * | (130 | / | 384) | = | -22.00520829 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Greenwood Elementary | -55 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -75 | -58 | -48 | -49 | -55 | -285.0 | -57.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -27.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -87.0
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 | 93% | 84% | 88% | 87% | 86% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Montebello 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.
Greenwood Elementary math proficiency
Zero+ meets standard.
86% less $meal
77% less $meal
81% less $meal
83% less $meal
82% 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.