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 |
7 |
982675 |
2425 |
- |
2567 |
= |
-142 |
* |
(396 |
/ |
834)
|
= |
-67.42446031 |
8 |
982676 |
2415 |
- |
2586 |
= |
-171 |
* |
(438 |
/ |
834)
|
= |
-89.80575538 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Charles Drew Middle
|
-157 |
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 |
7 |
31088 |
2428 |
- |
2567 |
= |
-139 |
* |
(401 |
/ |
776)
|
= |
-71.8286082 |
8 |
31090 |
2422 |
- |
2586 |
= |
-164 |
* |
(375 |
/ |
776)
|
= |
-79.25257721 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Charles Drew Middle
|
-151 |
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 |
7 |
31650 |
2427 |
- |
2567 |
= |
-140 |
* |
(432 |
/ |
818)
|
= |
-73.93643026 |
8 |
31651 |
2418 |
- |
2586 |
= |
-168 |
* |
(386 |
/ |
818)
|
= |
-79.27628352 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Charles Drew Middle
|
-153 |
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 |
7 |
31694 |
2442 |
- |
2567 |
= |
-125 |
* |
(352 |
/ |
743)
|
= |
-59.21938088 |
8 |
31697 |
2444 |
- |
2586 |
= |
-142 |
* |
(391 |
/ |
743)
|
= |
-74.72678318 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Charles Drew Middle
|
-134 |
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 |
7 |
31871 |
2420 |
- |
2567 |
= |
-147 |
* |
(348 |
/ |
696)
|
= |
-73.5 |
8 |
31872 |
2434 |
- |
2586 |
= |
-152 |
* |
(348 |
/ |
696)
|
= |
-76.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Charles Drew Middle
|
-150 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-157
|
-151
|
-153
|
-134
|
-150
|
-745.0 |
-149.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -125.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -173.0
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: