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 |
82398 |
0 |
- |
2436 |
= |
|
* |
(0 |
/ |
60) |
= |
|
4 |
82399 |
0 |
- |
2485 |
= |
|
* |
(0 |
/ |
60) |
= |
|
5 |
82400 |
0 |
- |
2528 |
= |
|
* |
(5 |
/ |
60) |
= |
|
6 |
82401 |
0 |
- |
2552 |
= |
|
* |
(0 |
/ |
60) |
= |
|
7 |
82402 |
0 |
- |
2567 |
= |
|
* |
(5 |
/ |
60) |
= |
|
8 |
82403 |
2468 |
- |
2586 |
= |
-118 |
* |
(13 |
/ |
60) |
= |
-25.56666659 |
11 |
82404 |
2480 |
- |
2628 |
= |
-148 |
* |
(30 |
/ |
60) |
= |
-74.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for SBE - Olive Grove Charter - Lompoc
|
-100 |
Last steps
Compute the average
2019 |
Sum |
Average |
-100
|
-100.0 |
-100.0 |
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.