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 |
439804 |
2540 |
- |
2628 |
= |
-88 |
* |
(791 |
/ |
791) |
= |
-88.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Central Union High
|
-88 |
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 |
13860 |
2561 |
- |
2628 |
= |
-67 |
* |
(868 |
/ |
868) |
= |
-67.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Central Union High
|
-67 |
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 |
8 |
14191 |
0 |
- |
2586 |
= |
|
* |
(0 |
/ |
908) |
= |
|
11 |
14192 |
2548 |
- |
2628 |
= |
-80 |
* |
(907 |
/ |
908) |
= |
-79.91189424 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Central Union High
|
-80 |
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 |
8 |
14198 |
0 |
- |
2586 |
= |
|
* |
(0 |
/ |
949) |
= |
|
11 |
14201 |
2535 |
- |
2628 |
= |
-93 |
* |
(948 |
/ |
949) |
= |
-92.90200209 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Central Union High
|
-93 |
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 |
11 |
14307 |
2545 |
- |
2628 |
= |
-83 |
* |
(943 |
/ |
943) |
= |
-83.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Central Union High
|
-83 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-88
|
-67
|
-80
|
-93
|
-83
|
-411.0 |
-82.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -55.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -109.2
For the lines, you have the data necessary to plot the chart.