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 |
2811036 |
2591 |
- |
2628 |
= |
-37 |
* |
(160 |
/ |
160) |
= |
-37.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Yreka Union High
|
-37 |
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 |
86031 |
2575 |
- |
2628 |
= |
-53 |
* |
(148 |
/ |
148) |
= |
-53.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Yreka Union High
|
-53 |
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 |
88393 |
2560 |
- |
2628 |
= |
-68 |
* |
(134 |
/ |
134) |
= |
-68.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Yreka Union High
|
-68 |
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 |
88621 |
2595 |
- |
2628 |
= |
-33 |
* |
(146 |
/ |
146) |
= |
-33.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Yreka Union High
|
-33 |
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 |
89250 |
2547 |
- |
2628 |
= |
-81 |
* |
(141 |
/ |
141) |
= |
-81.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Yreka Union High
|
-81 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-37
|
-53
|
-68
|
-33
|
-81
|
-272.0 |
-54.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 5.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -114.4
For the lines, you have the data necessary to plot the chart.