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 |
2163696 |
2547 |
- |
2628 |
= |
-81 |
* |
(1734 |
/ |
1734) |
= |
-81.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Escondido Union High
|
-81 |
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 |
66428 |
2550 |
- |
2628 |
= |
-78 |
* |
(1779 |
/ |
1779) |
= |
-78.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Escondido Union High
|
-78 |
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 |
68252 |
2546 |
- |
2628 |
= |
-82 |
* |
(1811 |
/ |
1811) |
= |
-82.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Escondido Union High
|
-82 |
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 |
68407 |
2534 |
- |
2628 |
= |
-94 |
* |
(1753 |
/ |
1753) |
= |
-94.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Escondido Union High
|
-94 |
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 |
68913 |
2530 |
- |
2628 |
= |
-98 |
* |
(1638 |
/ |
1638) |
= |
-98.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Escondido Union High
|
-98 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-81
|
-78
|
-82
|
-94
|
-98
|
-433.0 |
-86.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -62.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -110.6
For the lines, you have the data necessary to plot the chart.