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 |
853147 |
2453 |
- |
2628 |
= |
-175 |
* |
(16 |
/ |
16)
|
= |
-175.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Phoenix Continuation
|
-175 |
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 |
26984 |
2505 |
- |
2628 |
= |
-123 |
* |
(14 |
/ |
14)
|
= |
-123.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Phoenix Continuation
|
-123 |
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 |
27564 |
2488 |
- |
2628 |
= |
-140 |
* |
(21 |
/ |
21)
|
= |
-140.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Phoenix Continuation
|
-140 |
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 |
27611 |
2454 |
- |
2628 |
= |
-174 |
* |
(24 |
/ |
24)
|
= |
-174.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Phoenix Continuation
|
-174 |
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 |
27794 |
2455 |
- |
2628 |
= |
-173 |
* |
(28 |
/ |
28)
|
= |
-173.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Phoenix Continuation
|
-173 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-175
|
-123
|
-140
|
-174
|
-173
|
-785.0 |
-157.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -85.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -229.0
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: