Buena Vista Elementary (Data source)
Source data for Buena Vista 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 | 257675 | 2444 | - | 2436 | = | 8 | * | (98 | / | 291) | = | 2.69415807 | ||
| 4 | 257678 | 2510 | - | 2485 | = | 25 | * | (109 | / | 291) | = | 9.36426115 | ||
| 5 | 257679 | 2522 | - | 2528 | = | -6 | * | (84 | / | 291) | = | -1.73195876 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Buena Vista Elementary | 10 | ||||||||||||
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 | 7544 | 2486 | - | 2436 | = | 50 | * | (84 | / | 259) | = | 16.2162162 | ||
| 4 | 7545 | 2528 | - | 2485 | = | 43 | * | (90 | / | 259) | = | 14.94208492 | ||
| 5 | 7548 | 2552 | - | 2528 | = | 24 | * | (85 | / | 259) | = | 7.87644787 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Buena Vista Elementary | 39 | ||||||||||||
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 | 7785 | 2475 | - | 2436 | = | 39 | * | (69 | / | 234) | = | 11.49999997 | ||
| 4 | 7787 | 2535 | - | 2485 | = | 50 | * | (82 | / | 234) | = | 17.5213675 | ||
| 5 | 7790 | 2538 | - | 2528 | = | 10 | * | (83 | / | 234) | = | 3.54700854 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Buena Vista Elementary | 33 | ||||||||||||
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 | 7805 | 2505 | - | 2436 | = | 69 | * | (63 | / | 221) | = | 19.66968324 | ||
| 4 | 7808 | 2523 | - | 2485 | = | 38 | * | (75 | / | 221) | = | 12.89592757 | ||
| 5 | 7809 | 2569 | - | 2528 | = | 41 | * | (83 | / | 221) | = | 15.39819001 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Buena Vista Elementary | 48 | ||||||||||||
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 | 7853 | 2487 | - | 2436 | = | 51 | * | (65 | / | 198) | = | 16.74242423 | ||
| 4 | 7854 | 2546 | - | 2485 | = | 61 | * | (63 | / | 198) | = | 19.4090909 | ||
| 5 | 7855 | 2562 | - | 2528 | = | 34 | * | (70 | / | 198) | = | 12.020202 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Buena Vista Elementary | 48 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 10 | 39 | 33 | 48 | 48 | 178.0 | 35.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 80.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -9.4
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 | 13% | 12% | 8% | 12% | 15% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Walnut Creek Elementary school district | County of Contra Costa
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.
Buena Vista Elementary math proficiency
Zero+ meets standard.
11% less $meal
10% less $meal
7% less $meal
11% less $meal
15% 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 Walnut Creek Elementary (6)
| Buena Vista Elementary | Indian Valley Elementary | Murwood Elementary |
| Parkmead Elementary | Tice Creek | Walnut Heights Elementary |