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 |
3 |
475891 |
2366 |
- |
2436 |
= |
-70 |
* |
(215 |
/ |
215)
|
= |
-70.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Bessie E. Owens Primary
|
-70 |
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 |
3 |
15099 |
2396 |
- |
2436 |
= |
-40 |
* |
(174 |
/ |
174)
|
= |
-40.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Bessie E. Owens Primary
|
-40 |
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 |
3 |
15416 |
2413 |
- |
2436 |
= |
-23 |
* |
(171 |
/ |
171)
|
= |
-23.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Bessie E. Owens Primary
|
-23 |
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 |
3 |
15438 |
2414 |
- |
2436 |
= |
-22 |
* |
(184 |
/ |
184)
|
= |
-22.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Bessie E. Owens Primary
|
-22 |
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 |
3 |
15549 |
2420 |
- |
2436 |
= |
-16 |
* |
(163 |
/ |
163)
|
= |
-16.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Bessie E. Owens Primary
|
-16 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-70
|
-40
|
-23
|
-22
|
-16
|
-171.0 |
-34.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 28.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -97.2
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: