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 |
1314186 |
2540 |
- |
2628 |
= |
-88 |
* |
(2245 |
/ |
2245) |
= |
-88.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Merced Union High
|
-88 |
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 |
41234 |
2550 |
- |
2628 |
= |
-78 |
* |
(2309 |
/ |
2309) |
= |
-78.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Merced Union High
|
-78 |
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 |
42251 |
2532 |
- |
2628 |
= |
-96 |
* |
(2379 |
/ |
2379) |
= |
-96.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Merced Union High
|
-96 |
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 |
42265 |
2529 |
- |
2628 |
= |
-99 |
* |
(2501 |
/ |
2501) |
= |
-99.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Merced Union High
|
-99 |
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 |
42406 |
2519 |
- |
2628 |
= |
-109 |
* |
(2518 |
/ |
2518) |
= |
-109.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Merced Union High
|
-109 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-88
|
-78
|
-96
|
-99
|
-109
|
-470.0 |
-94.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -61.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -127.0
For the lines, you have the data necessary to plot the chart.