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 |
2596055 |
2520 |
- |
2628 |
= |
-108 |
* |
(1746 |
/ |
1746) |
= |
-108.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Santa Maria Joint Union High
|
-108 |
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 |
4 |
79147 |
0 |
- |
2485 |
= |
|
* |
(0 |
/ |
1786) |
= |
|
7 |
79150 |
0 |
- |
2567 |
= |
|
* |
(1 |
/ |
1786) |
= |
|
11 |
79151 |
2535 |
- |
2628 |
= |
-93 |
* |
(1785 |
/ |
1786) |
= |
-92.94792828 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Santa Maria Joint Union High
|
-93 |
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 |
81302 |
2525 |
- |
2628 |
= |
-103 |
* |
(1843 |
/ |
1843) |
= |
-103.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Santa Maria Joint Union High
|
-103 |
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 |
81452 |
2526 |
- |
2628 |
= |
-102 |
* |
(1746 |
/ |
1746) |
= |
-102.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Santa Maria Joint Union High
|
-102 |
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 |
81982 |
2536 |
- |
2628 |
= |
-92 |
* |
(1796 |
/ |
1796) |
= |
-92.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Santa Maria Joint Union High
|
-92 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-108
|
-93
|
-103
|
-102
|
-92
|
-498.0 |
-99.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -81.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -117.6
For the lines, you have the data necessary to plot the chart.