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 |
435373 |
2523 |
- |
2628 |
= |
-105 |
* |
(299 |
/ |
299) |
= |
-105.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Brawley Union High
|
-105 |
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 |
13695 |
2515 |
- |
2628 |
= |
-113 |
* |
(497 |
/ |
497) |
= |
-113.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Brawley Union High
|
-113 |
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 |
14030 |
2535 |
- |
2628 |
= |
-93 |
* |
(440 |
/ |
440) |
= |
-93.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Brawley Union High
|
-93 |
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 |
14034 |
2545 |
- |
2628 |
= |
-83 |
* |
(444 |
/ |
444) |
= |
-83.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Brawley Union High
|
-83 |
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 |
14147 |
2546 |
- |
2628 |
= |
-82 |
* |
(442 |
/ |
442) |
= |
-82.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Brawley Union High
|
-82 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-105
|
-113
|
-93
|
-83
|
-82
|
-476.0 |
-95.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -56.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -134.2
For the lines, you have the data necessary to plot the chart.