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 |
862789 |
2474 |
- |
2628 |
= |
-154 |
* |
(93 |
/ |
93)
|
= |
-154.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for David Starr Jordan Senior High
|
-154 |
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 |
27296 |
2494 |
- |
2628 |
= |
-134 |
* |
(80 |
/ |
80)
|
= |
-134.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for David Starr Jordan Senior High
|
-134 |
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 |
27873 |
2492 |
- |
2628 |
= |
-136 |
* |
(77 |
/ |
77)
|
= |
-136.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for David Starr Jordan Senior High
|
-136 |
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 |
27922 |
2483 |
- |
2628 |
= |
-145 |
* |
(77 |
/ |
77)
|
= |
-145.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for David Starr Jordan Senior High
|
-145 |
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 |
28102 |
2503 |
- |
2628 |
= |
-125 |
* |
(85 |
/ |
85)
|
= |
-125.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for David Starr Jordan Senior High
|
-125 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-154
|
-134
|
-136
|
-145
|
-125
|
-694.0 |
-138.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -105.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -171.8
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: