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 |
853522 |
2526 |
- |
2628 |
= |
-102 |
* |
(155 |
/ |
155)
|
= |
-102.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Belmont Senior High
|
-102 |
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 |
26996 |
2542 |
- |
2628 |
= |
-86 |
* |
(156 |
/ |
156)
|
= |
-86.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Belmont Senior High
|
-86 |
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 |
27576 |
2494 |
- |
2628 |
= |
-134 |
* |
(178 |
/ |
178)
|
= |
-134.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Belmont Senior High
|
-134 |
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 |
27623 |
2503 |
- |
2628 |
= |
-125 |
* |
(206 |
/ |
206)
|
= |
-125.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Belmont Senior High
|
-125 |
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 |
27806 |
2491 |
- |
2628 |
= |
-137 |
* |
(191 |
/ |
191)
|
= |
-137.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Belmont Senior High
|
-137 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-102
|
-86
|
-134
|
-125
|
-137
|
-584.0 |
-116.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -50.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -182.8
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: