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 |
1399922 |
2567 |
- |
2628 |
= |
-61 |
* |
(643 |
/ |
643) |
= |
-61.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Nevada Joint Union High
|
-61 |
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 |
8 |
44147 |
0 |
- |
2586 |
= |
|
* |
(1 |
/ |
613) |
= |
|
11 |
44148 |
2600 |
- |
2628 |
= |
-28 |
* |
(612 |
/ |
613) |
= |
-27.95432298 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Nevada Joint Union High
|
-28 |
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 |
45224 |
2595 |
- |
2628 |
= |
-33 |
* |
(603 |
/ |
603) |
= |
-33.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Nevada Joint Union High
|
-33 |
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 |
45239 |
2581 |
- |
2628 |
= |
-47 |
* |
(582 |
/ |
582) |
= |
-47.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Nevada Joint Union High
|
-47 |
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 |
45366 |
2584 |
- |
2628 |
= |
-44 |
* |
(614 |
/ |
614) |
= |
-44.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Nevada Joint Union High
|
-44 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-61
|
-28
|
-33
|
-47
|
-44
|
-213.0 |
-42.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -6.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -78.6
For the lines, you have the data necessary to plot the chart.