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 |
11 |
585473 |
2527 |
- |
2628 |
= |
-101 |
* |
( |
/ |
) |
= |
|
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Upper Lake Union High
|
|
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 |
11 |
18683 |
2471 |
- |
2628 |
= |
-157 |
* |
( |
/ |
) |
= |
|
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Upper Lake Union High
|
|
Last steps
Compute the average
2015 |
2016 |
Sum |
Average |
|
|
0.0 |
0.0 |
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.