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 |
3004616 |
2525 |
- |
2628 |
= |
-103 |
* |
(206 |
/ |
206) |
= |
-103.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Corning Union High
|
-103 |
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 |
4 |
92029 |
0 |
- |
2485 |
= |
|
* |
(1 |
/ |
209) |
= |
|
11 |
92031 |
2517 |
- |
2628 |
= |
-111 |
* |
(208 |
/ |
209) |
= |
-110.46889952 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Corning Union High
|
-110 |
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 |
94818 |
2524 |
- |
2628 |
= |
-104 |
* |
(231 |
/ |
231) |
= |
-104.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Corning Union High
|
-104 |
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 |
95008 |
2528 |
- |
2628 |
= |
-100 |
* |
(222 |
/ |
222) |
= |
-100.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Corning Union High
|
-100 |
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 |
95650 |
2498 |
- |
2628 |
= |
-130 |
* |
(224 |
/ |
224) |
= |
-130.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Corning Union High
|
-130 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-103
|
-110
|
-104
|
-100
|
-130
|
-547.0 |
-109.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -73.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -145.4
For the lines, you have the data necessary to plot the chart.