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 |
2169103 |
2567 |
- |
2628 |
= |
-61 |
* |
(3443 |
/ |
3443) |
= |
-61.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Grossmont Union High
|
-61 |
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 |
6 |
66595 |
0 |
- |
2552 |
= |
|
* |
(0 |
/ |
3877) |
= |
|
8 |
66598 |
0 |
- |
2586 |
= |
|
* |
(0 |
/ |
3877) |
= |
|
11 |
66599 |
2571 |
- |
2628 |
= |
-57 |
* |
(3877 |
/ |
3877) |
= |
-57.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Grossmont Union High
|
-57 |
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 |
68429 |
0 |
- |
2586 |
= |
|
* |
(0 |
/ |
3790) |
= |
|
11 |
68431 |
2574 |
- |
2628 |
= |
-54 |
* |
(3790 |
/ |
3790) |
= |
-54.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Grossmont Union High
|
-54 |
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 |
68576 |
0 |
- |
2586 |
= |
|
* |
(0 |
/ |
3715) |
= |
|
11 |
68578 |
2569 |
- |
2628 |
= |
-59 |
* |
(3715 |
/ |
3715) |
= |
-59.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Grossmont Union High
|
-59 |
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 |
6 |
69095 |
0 |
- |
2552 |
= |
|
* |
(0 |
/ |
3567) |
= |
|
8 |
69096 |
0 |
- |
2586 |
= |
|
* |
(0 |
/ |
3567) |
= |
|
11 |
69097 |
2566 |
- |
2628 |
= |
-62 |
* |
(3566 |
/ |
3567) |
= |
-61.98261842 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Grossmont Union High
|
-62 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-61
|
-57
|
-54
|
-59
|
-62
|
-293.0 |
-58.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -49.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -67.6
For the lines, you have the data necessary to plot the chart.