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 |
2685416 |
2677 |
- |
2628 |
= |
49 |
* |
(714 |
/ |
714) |
= |
49.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Mountain View-Los Altos Union High
|
49 |
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 |
81834 |
2660 |
- |
2628 |
= |
32 |
* |
(861 |
/ |
861) |
= |
32.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Mountain View-Los Altos Union High
|
32 |
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 |
84111 |
2674 |
- |
2628 |
= |
46 |
* |
(931 |
/ |
931) |
= |
46.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Mountain View-Los Altos Union High
|
46 |
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 |
84328 |
2678 |
- |
2628 |
= |
50 |
* |
(909 |
/ |
909) |
= |
50.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Mountain View-Los Altos Union High
|
50 |
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 |
84940 |
2690 |
- |
2628 |
= |
62 |
* |
(962 |
/ |
962) |
= |
62.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Mountain View-Los Altos Union High
|
62 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
49
|
32
|
46
|
50
|
62
|
239.0 |
47.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 77.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 17.8
For the lines, you have the data necessary to plot the chart.