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 |
150143 |
2526 |
- |
2628 |
= |
-102 |
* |
(517 |
/ |
517) |
= |
-102.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Oroville Union High
|
-102 |
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 |
4391 |
0 |
- |
2586 |
= |
|
* |
(0 |
/ |
467) |
= |
|
11 |
4393 |
2517 |
- |
2628 |
= |
-111 |
* |
(467 |
/ |
467) |
= |
-111.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Oroville Union High
|
-111 |
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 |
4474 |
2537 |
- |
2628 |
= |
-91 |
* |
(479 |
/ |
479) |
= |
-91.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Oroville Union High
|
-91 |
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 |
4461 |
2532 |
- |
2628 |
= |
-96 |
* |
(458 |
/ |
458) |
= |
-96.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Oroville Union High
|
-96 |
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 |
4499 |
2541 |
- |
2628 |
= |
-87 |
* |
(466 |
/ |
466) |
= |
-87.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Oroville Union High
|
-87 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-102
|
-111
|
-91
|
-96
|
-87
|
-487.0 |
-97.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -70.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -124.4
For the lines, you have the data necessary to plot the chart.