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 |
2237714 |
2617 |
- |
2628 |
= |
-11 |
* |
(522 |
/ |
522)
|
= |
-11.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Henry High
|
-11 |
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 |
68699 |
2629 |
- |
2628 |
= |
1 |
* |
(502 |
/ |
502)
|
= |
1.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Henry High
|
1 |
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 |
70517 |
2639 |
- |
2628 |
= |
11 |
* |
(516 |
/ |
516)
|
= |
11.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Henry High
|
11 |
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 |
70664 |
2625 |
- |
2628 |
= |
-3 |
* |
(499 |
/ |
499)
|
= |
-3.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Henry High
|
-3 |
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 |
71149 |
2619 |
- |
2628 |
= |
-9 |
* |
(537 |
/ |
537)
|
= |
-9.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Henry High
|
-9 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-11
|
1
|
11
|
-3
|
-9
|
-11.0 |
-2.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 21.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -26.2
For the lines, you have the data necessary to plot the chart.
Very last step
The percent of students getting a Free or Reduced Price Meal comes from the following sources: