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 |
2238190 |
2557 |
- |
2628 |
= |
-71 |
* |
(267 |
/ |
267)
|
= |
-71.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Madison High
|
-71 |
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 |
68711 |
2548 |
- |
2628 |
= |
-80 |
* |
(263 |
/ |
263)
|
= |
-80.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Madison High
|
-80 |
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 |
70529 |
2547 |
- |
2628 |
= |
-81 |
* |
(240 |
/ |
240)
|
= |
-81.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Madison High
|
-81 |
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 |
70675 |
2533 |
- |
2628 |
= |
-95 |
* |
(216 |
/ |
216)
|
= |
-95.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Madison High
|
-95 |
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 |
71161 |
2517 |
- |
2628 |
= |
-111 |
* |
(229 |
/ |
229)
|
= |
-111.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Madison High
|
-111 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-71
|
-80
|
-81
|
-95
|
-111
|
-438.0 |
-87.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -42.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -132.6
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: