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 |
2234582 |
2645 |
- |
2628 |
= |
17 |
* |
(415 |
/ |
415)
|
= |
17.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for University City High
|
17 |
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 |
68592 |
2637 |
- |
2628 |
= |
9 |
* |
(371 |
/ |
371)
|
= |
9.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for University City High
|
9 |
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 |
70411 |
2650 |
- |
2628 |
= |
22 |
* |
(445 |
/ |
445)
|
= |
22.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for University City High
|
22 |
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 |
70561 |
2634 |
- |
2628 |
= |
6 |
* |
(447 |
/ |
447)
|
= |
6.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for University City High
|
6 |
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 |
71045 |
2619 |
- |
2628 |
= |
-9 |
* |
(414 |
/ |
414)
|
= |
-9.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for University City High
|
-9 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
17
|
9
|
22
|
6
|
-9
|
45.0 |
9.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 42.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -24.0
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: