Rivera Elementary (Data source)
Source data for Rivera 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 | 697599 | 2417 | - | 2436 | = | -19 | * | (122 | / | 364) | = | -6.36813187 | ||
| 4 | 697602 | 2436 | - | 2485 | = | -49 | * | (119 | / | 364) | = | -16.01923072 | ||
| 5 | 697603 | 2459 | - | 2528 | = | -69 | * | (123 | / | 364) | = | -23.315934 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Rivera Elementary | -46 | ||||||||||||
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 | 22053 | 2424 | - | 2436 | = | -12 | * | (131 | / | 365) | = | -4.30684931 | ||
| 4 | 22055 | 2449 | - | 2485 | = | -36 | * | (124 | / | 365) | = | -12.23013697 | ||
| 5 | 22056 | 2474 | - | 2528 | = | -54 | * | (110 | / | 365) | = | -16.2739726 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Rivera 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 | 22473 | 2417 | - | 2436 | = | -19 | * | (92 | / | 345) | = | -5.06666665 | ||
| 4 | 22475 | 2462 | - | 2485 | = | -23 | * | (128 | / | 345) | = | -8.53333332 | ||
| 5 | 22477 | 2467 | - | 2528 | = | -61 | * | (125 | / | 345) | = | -22.10144924 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Rivera 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 | 22463 | 2403 | - | 2436 | = | -33 | * | (81 | / | 310) | = | -8.62258063 | ||
| 4 | 22465 | 2450 | - | 2485 | = | -35 | * | (102 | / | 310) | = | -11.51612903 | ||
| 5 | 22467 | 2471 | - | 2528 | = | -57 | * | (127 | / | 310) | = | -23.35161288 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Rivera Elementary | -43 | ||||||||||||
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 | 22646 | 2429 | - | 2436 | = | -7 | * | (101 | / | 294) | = | -2.4047619 | ||
| 4 | 22647 | 2443 | - | 2485 | = | -42 | * | (90 | / | 294) | = | -12.85714282 | ||
| 5 | 22648 | 2462 | - | 2528 | = | -66 | * | (103 | / | 294) | = | -23.12244898 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Rivera Elementary | -38 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -46 | -33 | -36 | -43 | -38 | -196.0 | -39.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -24.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -54.2
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 | 82% | 73% | 75% | 73% | 74% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
El Rancho 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.
Rivera Elementary math proficiency
Zero+ meets standard.
68% less $meal
60% less $meal
59% less $meal
63% less $meal
62% 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.