Vannoy Elementary (Data source)
Source data for Vannoy 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 | 24884 | 2441 | - | 2436 | = | 5 | * | (82 | / | 211) | = | 1.94312796 | ||
| 4 | 24885 | 2539 | - | 2485 | = | 54 | * | (68 | / | 211) | = | 17.40284357 | ||
| 5 | 24888 | 2535 | - | 2528 | = | 7 | * | (61 | / | 211) | = | 2.02369668 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Vannoy Elementary | 21 | ||||||||||||
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 | 665 | 2476 | - | 2436 | = | 40 | * | (74 | / | 227) | = | 13.03964756 | ||
| 4 | 667 | 2509 | - | 2485 | = | 24 | * | (85 | / | 227) | = | 8.98678414 | ||
| 5 | 669 | 2588 | - | 2528 | = | 60 | * | (68 | / | 227) | = | 17.97356826 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Vannoy Elementary | 40 | ||||||||||||
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 | 707 | 2497 | - | 2436 | = | 61 | * | (75 | / | 233) | = | 19.63519313 | ||
| 4 | 710 | 2528 | - | 2485 | = | 43 | * | (72 | / | 233) | = | 13.28755363 | ||
| 5 | 712 | 2541 | - | 2528 | = | 13 | * | (86 | / | 233) | = | 4.79828326 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Vannoy Elementary | 38 | ||||||||||||
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 | 727 | 2486 | - | 2436 | = | 50 | * | (72 | / | 229) | = | 15.720524 | ||
| 4 | 729 | 2526 | - | 2485 | = | 41 | * | (77 | / | 229) | = | 13.78602618 | ||
| 5 | 731 | 2542 | - | 2528 | = | 14 | * | (80 | / | 229) | = | 4.89082969 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Vannoy Elementary | 34 | ||||||||||||
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 | 757 | 2490 | - | 2436 | = | 54 | * | (73 | / | 228) | = | 17.28947365 | ||
| 4 | 758 | 2516 | - | 2485 | = | 31 | * | (75 | / | 228) | = | 10.19736841 | ||
| 5 | 759 | 2556 | - | 2528 | = | 28 | * | (80 | / | 228) | = | 9.82456138 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Vannoy Elementary | 37 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 21 | 40 | 38 | 34 | 37 | 170.0 | 34.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 55.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 13.0
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 | 12% | 14% | 15% | 12% | 14% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Castro Valley Unified school district | County of Alameda
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.
Vannoy Elementary math proficiency
Zero+ meets standard.
10% less $meal
12% less $meal
12% less $meal
10% less $meal
13% 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 Castro Valley Unified (9)
| Castro Valley Elementary | Chabot Elementary | Independent Elementary |
| Jensen Ranch Elementary | Marshall Elementary | Palomares Elementary |
| Proctor Elementary | Stanton Elementary | Vannoy Elementary |