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 |
3123176 |
2520 |
- |
2628 |
= |
-108 |
* |
(3473 |
/ |
3473) |
= |
-108.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Oxnard 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 |
6 |
96324 |
0 |
- |
2552 |
= |
|
* |
(1 |
/ |
3716) |
= |
|
11 |
96327 |
2542 |
- |
2628 |
= |
-86 |
* |
(3715 |
/ |
3716) |
= |
-85.9768568 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Oxnard Union High
|
-86 |
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 |
99112 |
2541 |
- |
2628 |
= |
-87 |
* |
(3779 |
/ |
3779) |
= |
-87.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Oxnard Union High
|
-87 |
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 |
8 |
99266 |
0 |
- |
2586 |
= |
|
* |
(0 |
/ |
3778) |
= |
|
11 |
99269 |
2537 |
- |
2628 |
= |
-91 |
* |
(3778 |
/ |
3778) |
= |
-91.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Oxnard Union High
|
-91 |
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 |
99931 |
2524 |
- |
2628 |
= |
-104 |
* |
(3879 |
/ |
3879) |
= |
-104.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Oxnard Union High
|
-104 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-108
|
-86
|
-87
|
-91
|
-104
|
-476.0 |
-95.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -65.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -125.2
For the lines, you have the data necessary to plot the chart.