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 |
1151854 |
2557 |
- |
2628 |
= |
-71 |
* |
(3024 |
/ |
3024) |
= |
-71.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Whittier Union High
|
-71 |
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 |
8 |
35840 |
0 |
- |
2586 |
= |
|
* |
(0 |
/ |
2849) |
= |
|
11 |
35842 |
2566 |
- |
2628 |
= |
-62 |
* |
(2849 |
/ |
2849) |
= |
-62.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Whittier Union High
|
-62 |
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 |
36555 |
2556 |
- |
2628 |
= |
-72 |
* |
(3002 |
/ |
3002) |
= |
-72.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Whittier Union High
|
-72 |
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 |
36541 |
2560 |
- |
2628 |
= |
-68 |
* |
(2767 |
/ |
2767) |
= |
-68.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Whittier Union High
|
-68 |
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 |
36702 |
2566 |
- |
2628 |
= |
-62 |
* |
(2657 |
/ |
2657) |
= |
-62.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Whittier Union High
|
-62 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-71
|
-62
|
-72
|
-68
|
-62
|
-335.0 |
-67.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -55.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -79.0
For the lines, you have the data necessary to plot the chart.