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 |
852412 |
2425 |
- |
2628 |
= |
-203 |
* |
(50 |
/ |
50)
|
= |
-203.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for San Antonio Continuation
|
-203 |
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 |
26958 |
2425 |
- |
2628 |
= |
-203 |
* |
(30 |
/ |
30)
|
= |
-203.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for San Antonio Continuation
|
-203 |
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 |
27537 |
2430 |
- |
2628 |
= |
-198 |
* |
(40 |
/ |
40)
|
= |
-198.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for San Antonio Continuation
|
-198 |
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 |
27580 |
2431 |
- |
2628 |
= |
-197 |
* |
(43 |
/ |
43)
|
= |
-197.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for San Antonio Continuation
|
-197 |
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 |
27766 |
2427 |
- |
2628 |
= |
-201 |
* |
(67 |
/ |
67)
|
= |
-201.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for San Antonio Continuation
|
-201 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-203
|
-203
|
-198
|
-197
|
-201
|
-1002.0 |
-200.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -194.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -206.4
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: