Vejar Elementary (Data source)
Source data for Vejar 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 | 1190348 | 2461 | - | 2436 | = | 25 | * | (101 | / | 304) | = | 8.30592105 | ||
| 4 | 1190349 | 2539 | - | 2485 | = | 54 | * | (88 | / | 304) | = | 15.63157894 | ||
| 5 | 1190352 | 2560 | - | 2528 | = | 32 | * | (115 | / | 304) | = | 12.10526314 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Vejar Elementary | 36 | ||||||||||||
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 | 37033 | 2498 | - | 2436 | = | 62 | * | (101 | / | 319) | = | 19.63009404 | ||
| 4 | 37035 | 2497 | - | 2485 | = | 12 | * | (122 | / | 319) | = | 4.58934169 | ||
| 5 | 37037 | 2575 | - | 2528 | = | 47 | * | (96 | / | 319) | = | 14.14420059 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Vejar Elementary | 38 | ||||||||||||
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 | 37821 | 2493 | - | 2436 | = | 57 | * | (90 | / | 309) | = | 16.6019417 | ||
| 4 | 37824 | 2557 | - | 2485 | = | 72 | * | (100 | / | 309) | = | 23.30097084 | ||
| 5 | 37826 | 2548 | - | 2528 | = | 20 | * | (119 | / | 309) | = | 7.70226536 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Vejar 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 | 37760 | 2490 | - | 2436 | = | 54 | * | (91 | / | 301) | = | 16.32558137 | ||
| 4 | 37763 | 2548 | - | 2485 | = | 63 | * | (105 | / | 301) | = | 21.97674417 | ||
| 5 | 37764 | 2586 | - | 2528 | = | 58 | * | (105 | / | 301) | = | 20.23255812 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Vejar Elementary | 59 | ||||||||||||
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 | 37970 | 2487 | - | 2436 | = | 51 | * | (91 | / | 287) | = | 16.17073167 | ||
| 4 | 37971 | 2545 | - | 2485 | = | 60 | * | (92 | / | 287) | = | 19.23344946 | ||
| 5 | 37972 | 2590 | - | 2528 | = | 62 | * | (104 | / | 287) | = | 22.46689889 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Vejar Elementary | 58 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 36 | 38 | 48 | 59 | 58 | 239.0 | 47.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 77.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 17.8
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 | 20% | 18% | 20% | 25% | 25% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Walnut Valley 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.
Vejar Elementary math proficiency
Zero+ meets standard.
11% less $meal
13% less $meal
14% less $meal
22% less $meal
22% 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.