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 |
862894 |
2573 |
- |
2628 |
= |
-55 |
* |
(212 |
/ |
212)
|
= |
-55.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Abraham Lincoln Senior High
|
-55 |
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 |
27301 |
2565 |
- |
2628 |
= |
-63 |
* |
(182 |
/ |
182)
|
= |
-63.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Abraham Lincoln Senior High
|
-63 |
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 |
27878 |
2553 |
- |
2628 |
= |
-75 |
* |
(177 |
/ |
177)
|
= |
-75.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Abraham Lincoln Senior High
|
-75 |
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 |
27927 |
2558 |
- |
2628 |
= |
-70 |
* |
(200 |
/ |
200)
|
= |
-70.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Abraham Lincoln Senior High
|
-70 |
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 |
28106 |
2558 |
- |
2628 |
= |
-70 |
* |
(215 |
/ |
215)
|
= |
-70.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Abraham Lincoln Senior High
|
-70 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-55
|
-63
|
-75
|
-70
|
-70
|
-333.0 |
-66.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -45.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -87.6
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: