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 |
| 6 |
33847 |
2403 |
- |
2552 |
= |
-149 |
* |
(372 |
/ |
972)
|
= |
-57.0246913 |
| 7 |
33849 |
2431 |
- |
2567 |
= |
-136 |
* |
(342 |
/ |
972)
|
= |
-47.85185174 |
| 8 |
33851 |
2411 |
- |
2586 |
= |
-175 |
* |
(258 |
/ |
972)
|
= |
-46.45061715 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Space Aeronautics Gateway to Exploration Magnet Academy
|
-151 |
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 |
| 6 |
34028 |
2401 |
- |
2552 |
= |
-151 |
* |
(348 |
/ |
1030)
|
= |
-51.01747563 |
| 7 |
34029 |
2421 |
- |
2567 |
= |
-146 |
* |
(352 |
/ |
1030)
|
= |
-49.89514551 |
| 8 |
34030 |
2440 |
- |
2586 |
= |
-146 |
* |
(330 |
/ |
1030)
|
= |
-46.77669895 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Space Aeronautics Gateway to Exploration Magnet Academy
|
-148 |
Last steps
Compute the average
| 2018 |
2019 |
Sum |
Average |
|
-151
|
-148
|
-299.0 |
-149.5 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -143.5
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -155.5
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:
