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 |
197964 |
2563 |
- |
2628 |
= |
-65 |
* |
(1818 |
/ |
1818) |
= |
-65.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Liberty Union High
|
-65 |
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 |
5897 |
2576 |
- |
2628 |
= |
-52 |
* |
(1909 |
/ |
1909) |
= |
-52.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Liberty Union High
|
-52 |
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 |
11 |
6049 |
2571 |
- |
2628 |
= |
-57 |
* |
(1908 |
/ |
1908) |
= |
-57.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Liberty Union High
|
-57 |
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 |
11 |
6043 |
2567 |
- |
2628 |
= |
-61 |
* |
(2019 |
/ |
2019) |
= |
-61.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Liberty Union High
|
-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 |
11 |
6105 |
2584 |
- |
2628 |
= |
-44 |
* |
(1885 |
/ |
1885) |
= |
-44.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Liberty Union High
|
-44 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-65
|
-52
|
-57
|
-61
|
-44
|
-279.0 |
-55.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -31.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -79.8
For the lines, you have the data necessary to plot the chart.