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 |
1263896 |
2654 |
- |
2628 |
= |
26 |
* |
(832 |
/ |
832) |
= |
26.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Tamalpais Union High
|
26 |
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 |
39406 |
2631 |
- |
2628 |
= |
3 |
* |
(892 |
/ |
892) |
= |
3.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Tamalpais Union High
|
3 |
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 |
40422 |
2644 |
- |
2628 |
= |
16 |
* |
(1032 |
/ |
1032) |
= |
16.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Tamalpais Union High
|
16 |
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 |
40439 |
2635 |
- |
2628 |
= |
7 |
* |
(1160 |
/ |
1160) |
= |
7.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Tamalpais Union High
|
7 |
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 |
40582 |
2646 |
- |
2628 |
= |
18 |
* |
(1150 |
/ |
1150) |
= |
18.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Tamalpais Union High
|
18 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
26
|
3
|
16
|
7
|
18
|
70.0 |
14.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 41.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -13.0
For the lines, you have the data necessary to plot the chart.