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 |
2558389 |
2605 |
- |
2628 |
= |
-23 |
* |
(1761 |
/ |
1761) |
= |
-23.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Sequoia Union High
|
-23 |
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 |
77949 |
2607 |
- |
2628 |
= |
-21 |
* |
(1932 |
/ |
1932) |
= |
-21.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Sequoia Union High
|
-21 |
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 |
80107 |
2622 |
- |
2628 |
= |
-6 |
* |
(1941 |
/ |
1941) |
= |
-6.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Sequoia Union High
|
-6 |
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 |
80257 |
2612 |
- |
2628 |
= |
-16 |
* |
(2002 |
/ |
2002) |
= |
-16.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Sequoia Union High
|
-16 |
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 |
80745 |
2632 |
- |
2628 |
= |
4 |
* |
(1943 |
/ |
1943) |
= |
4.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Sequoia Union High
|
4 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-23
|
-21
|
-6
|
-16
|
4
|
-62.0 |
-12.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 20.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -45.4
For the lines, you have the data necessary to plot the chart.