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 |
857588 |
0 |
- |
2628 |
= |
|
* |
(0 |
/ |
0)
|
= |
|
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Ellington (Duke) High (Continuation)
|
|
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 |
27135 |
0 |
- |
2628 |
= |
|
* |
(0 |
/ |
0)
|
= |
|
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Ellington (Duke) High (Continuation)
|
|
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 |
27714 |
2399 |
- |
2628 |
= |
-229 |
* |
(13 |
/ |
13)
|
= |
-229.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Ellington (Duke) High (Continuation)
|
-229 |
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 |
27761 |
2462 |
- |
2628 |
= |
-166 |
* |
(13 |
/ |
13)
|
= |
-166.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Ellington (Duke) High (Continuation)
|
-166 |
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 |
27940 |
2410 |
- |
2628 |
= |
-218 |
* |
(12 |
/ |
12)
|
= |
-218.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Ellington (Duke) High (Continuation)
|
-218 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
|
-229
|
-166
|
-218
|
-613.0 |
-122.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -105.333333333333333333
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -303.333333333333333333
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: