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 |
864780 |
2508 |
- |
2628 |
= |
-120 |
* |
(536 |
/ |
536)
|
= |
-120.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for South Gate Senior High
|
-120 |
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 |
27355 |
2536 |
- |
2628 |
= |
-92 |
* |
(567 |
/ |
567)
|
= |
-92.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for South Gate Senior High
|
-92 |
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 |
27930 |
2548 |
- |
2628 |
= |
-80 |
* |
(519 |
/ |
519)
|
= |
-80.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for South Gate Senior High
|
-80 |
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 |
27978 |
2532 |
- |
2628 |
= |
-96 |
* |
(601 |
/ |
601)
|
= |
-96.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for South Gate Senior 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 |
28158 |
2545 |
- |
2628 |
= |
-83 |
* |
(473 |
/ |
473)
|
= |
-83.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for South Gate Senior High
|
-83 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-120
|
-92
|
-80
|
-96
|
-83
|
-471.0 |
-94.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -49.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -139.2
For the lines, you have the data necessary to plot the chart.
Very last step
The percent of students getting a Free or Reduced Price Meal comes from the following sources: