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 |
864465 |
2545 |
- |
2628 |
= |
-83 |
* |
(451 |
/ |
451)
|
= |
-83.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for San Fernando Senior High
|
-83 |
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 |
27346 |
2558 |
- |
2628 |
= |
-70 |
* |
(496 |
/ |
496)
|
= |
-70.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for San Fernando Senior High
|
-70 |
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 |
27921 |
2537 |
- |
2628 |
= |
-91 |
* |
(466 |
/ |
466)
|
= |
-91.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for San Fernando Senior 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 |
27971 |
2534 |
- |
2628 |
= |
-94 |
* |
(462 |
/ |
462)
|
= |
-94.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for San Fernando Senior High
|
-94 |
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 |
28150 |
2550 |
- |
2628 |
= |
-78 |
* |
(398 |
/ |
398)
|
= |
-78.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for San Fernando Senior High
|
-78 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-83
|
-70
|
-91
|
-94
|
-78
|
-416.0 |
-83.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -56.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -110.2
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: