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 |
2237887 |
2543 |
- |
2628 |
= |
-85 |
* |
(370 |
/ |
370)
|
= |
-85.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Hoover High
|
-85 |
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 |
68703 |
2504 |
- |
2628 |
= |
-124 |
* |
(297 |
/ |
297)
|
= |
-124.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Hoover High
|
-124 |
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 |
70521 |
2530 |
- |
2628 |
= |
-98 |
* |
(423 |
/ |
423)
|
= |
-98.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Hoover High
|
-98 |
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 |
70667 |
2509 |
- |
2628 |
= |
-119 |
* |
(475 |
/ |
475)
|
= |
-119.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Hoover High
|
-119 |
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 |
71153 |
2527 |
- |
2628 |
= |
-101 |
* |
(468 |
/ |
468)
|
= |
-101.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Hoover High
|
-101 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-85
|
-124
|
-98
|
-119
|
-101
|
-527.0 |
-105.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -60.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -150.4
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: