Alpha: Cornerstone Academy Preparatory (Data source)
Source data for Alpha: Cornerstone Academy Preparatory
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 | 2654106 | 2485 | - | 2436 | = | 49 | * | (84 | / | 200) | = | 20.58 | ||
| 4 | 2654107 | 2513 | - | 2485 | = | 28 | * | (87 | / | 200) | = | 12.18 | ||
| 5 | 2654110 | 2548 | - | 2528 | = | 20 | * | (29 | / | 200) | = | 2.9 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Alpha: Cornerstone Academy Preparatory | 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 | 80896 | 2489 | - | 2436 | = | 53 | * | (58 | / | 246) | = | 12.49593492 | ||
| 4 | 80898 | 2520 | - | 2485 | = | 35 | * | (87 | / | 246) | = | 12.37804876 | ||
| 5 | 80901 | 2516 | - | 2528 | = | -12 | * | (75 | / | 246) | = | -3.65853658 | ||
| 6 | 80903 | 2563 | - | 2552 | = | 11 | * | (26 | / | 246) | = | 1.16260162 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Alpha: Cornerstone Academy Preparatory | 22 | ||||||||||||
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 | 83125 | 2515 | - | 2436 | = | 79 | * | (86 | / | 269) | = | 25.25650556 | ||
| 4 | 83127 | 2535 | - | 2485 | = | 50 | * | (56 | / | 269) | = | 10.4089219 | ||
| 5 | 83129 | 2536 | - | 2528 | = | 8 | * | (60 | / | 269) | = | 1.78438662 | ||
| 6 | 83130 | 2532 | - | 2552 | = | -20 | * | (67 | / | 269) | = | -4.98141262 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Alpha: Cornerstone Academy Preparatory | 32 | ||||||||||||
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 | 83341 | 2507 | - | 2436 | = | 71 | * | (59 | / | 327) | = | 12.81039751 | ||
| 4 | 83344 | 2552 | - | 2485 | = | 67 | * | (89 | / | 327) | = | 18.23547395 | ||
| 5 | 83345 | 2558 | - | 2528 | = | 30 | * | (62 | / | 327) | = | 5.68807338 | ||
| 6 | 83348 | 2563 | - | 2552 | = | 11 | * | (63 | / | 327) | = | 2.11926605 | ||
| 7 | 83349 | 2567 | - | 2567 | = | 0 | * | (54 | / | 327) | = | 0.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Alpha: Cornerstone Academy Preparatory | 39 | ||||||||||||
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 | 83957 | 2498 | - | 2436 | = | 62 | * | (58 | / | 360) | = | 9.98888888 | ||
| 4 | 83958 | 2556 | - | 2485 | = | 71 | * | (60 | / | 360) | = | 11.83333329 | ||
| 5 | 83959 | 2572 | - | 2528 | = | 44 | * | (73 | / | 360) | = | 8.92222219 | ||
| 6 | 83960 | 2596 | - | 2552 | = | 44 | * | (66 | / | 360) | = | 8.06666665 | ||
| 7 | 83961 | 2656 | - | 2567 | = | 89 | * | (53 | / | 360) | = | 13.10277776 | ||
| 8 | 83962 | 2647 | - | 2586 | = | 61 | * | (50 | / | 360) | = | 8.47222217 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Alpha: Cornerstone Academy Preparatory | 60 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 36 | 22 | 32 | 39 | 60 | 189.0 | 37.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average:
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average:
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 | 73% | 70% | 62% | 67% | 69% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Franklin-McKinley Elementary school district | County of Santa Clara
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.
