Delta Charter Online (Data source)
Source data for Delta Charter Online
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 | 76507 | 0 | - | 2436 | = | * | (0 | / | 70) | = | ||||
4 | 76510 | 0 | - | 2485 | = | * | (0 | / | 70) | = | ||||
5 | 76511 | 0 | - | 2528 | = | * | (0 | / | 70) | = | ||||
6 | 76514 | 2451 | - | 2552 | = | -101 | * | (13 | / | 70) | = | -18.75714279 | ||
7 | 76515 | 0 | - | 2567 | = | * | (0 | / | 70) | = | ||||
8 | 76518 | 2467 | - | 2586 | = | -119 | * | (25 | / | 70) | = | -42.49999998 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Delta Charter Online | -61 |
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 |
||
8 | 77016 | 0 | - | 2586 | = | * | (0 | / | 43) | = | ||||
11 | 77017 | 2503 | - | 2628 | = | -125 | * | (42 | / | 43) | = | -122.09302325 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Delta Charter Online | -122 |
Last steps
Compute the average
2018 | 2019 | Sum | Average |
---|---|---|---|
-61 | -122 | -183.0 | -91.5 |
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:
2018 | 2019 | |
---|---|---|
Percent | 38% | 53% |
Data source | 2018 data file | 2019 data file |
New Jerusalem Elementary school district County of San Joaquin
THIS chart shows what the school system "wants"
PLUS a "special" or "outside" cause of variation, parent education.
NOT what teachers want.
NOT what principals want.
NOT what parents want.