Independent Elementary (Data source)
Source data for Independent 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 | 23443 | 2465 | - | 2436 | = | 29 | * | (120 | / | 314) | = | 11.08280255 | ||
| 4 | 23446 | 2526 | - | 2485 | = | 41 | * | (98 | / | 314) | = | 12.79617831 | ||
| 5 | 23447 | 2543 | - | 2528 | = | 15 | * | (96 | / | 314) | = | 4.58598726 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Independent Elementary | 28 | ||||||||||||
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 | 625 | 2493 | - | 2436 | = | 57 | * | (117 | / | 328) | = | 20.33231707 | ||
| 4 | 628 | 2525 | - | 2485 | = | 40 | * | (115 | / | 328) | = | 14.02439024 | ||
| 5 | 629 | 2558 | - | 2528 | = | 30 | * | (96 | / | 328) | = | 8.78048778 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Independent Elementary | 43 | ||||||||||||
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 | 667 | 2478 | - | 2436 | = | 42 | * | (100 | / | 343) | = | 12.24489794 | ||
| 4 | 669 | 2541 | - | 2485 | = | 56 | * | (123 | / | 343) | = | 20.08163265 | ||
| 5 | 672 | 2561 | - | 2528 | = | 33 | * | (120 | / | 343) | = | 11.54518949 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Independent Elementary | 44 | ||||||||||||
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 | 687 | 2478 | - | 2436 | = | 42 | * | (99 | / | 320) | = | 12.99375 | ||
| 4 | 689 | 2518 | - | 2485 | = | 33 | * | (94 | / | 320) | = | 9.69375 | ||
| 5 | 691 | 2573 | - | 2528 | = | 45 | * | (127 | / | 320) | = | 17.859375 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Independent Elementary | 41 | ||||||||||||
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 | 717 | 2467 | - | 2436 | = | 31 | * | (98 | / | 285) | = | 10.65964912 | ||
| 4 | 718 | 2527 | - | 2485 | = | 42 | * | (95 | / | 285) | = | 13.99999999 | ||
| 5 | 719 | 2591 | - | 2528 | = | 63 | * | (92 | / | 285) | = | 20.33684207 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Independent Elementary | 45 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 28 | 43 | 44 | 41 | 45 | 201.0 | 40.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 58.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 22.2
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 | 11% | 14% | 15% | 17% | 16% |
| 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.
Independent Elementary math proficiency
Zero+ meets standard.
7% less $meal
11% less $meal
12% less $meal
14% less $meal
14% 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 |