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 |
808413 |
2498 |
- |
2628 |
= |
-130 |
* |
(340 |
/ |
340)
|
= |
-130.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for West Adams Preparatory High
|
-130 |
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 |
25285 |
2519 |
- |
2628 |
= |
-109 |
* |
(244 |
/ |
244)
|
= |
-109.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for West Adams Preparatory High
|
-109 |
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 |
25766 |
2526 |
- |
2628 |
= |
-102 |
* |
(261 |
/ |
261)
|
= |
-102.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for West Adams Preparatory High
|
-102 |
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 |
25793 |
2515 |
- |
2628 |
= |
-113 |
* |
(244 |
/ |
244)
|
= |
-113.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for West Adams Preparatory High
|
-113 |
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 |
25944 |
2530 |
- |
2628 |
= |
-98 |
* |
(295 |
/ |
295)
|
= |
-98.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for West Adams Preparatory High
|
-98 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-130
|
-109
|
-102
|
-113
|
-98
|
-552.0 |
-110.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -74.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -146.4
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: