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 |
67299 |
2462 |
- |
2436 |
= |
26 |
* |
(86 |
/ |
309)
|
= |
7.23624595 |
| 4 |
67301 |
2526 |
- |
2485 |
= |
41 |
* |
(64 |
/ |
309)
|
= |
8.49190938 |
| 5 |
67303 |
2543 |
- |
2528 |
= |
15 |
* |
(83 |
/ |
309)
|
= |
4.02912621 |
| 6 |
67305 |
2554 |
- |
2552 |
= |
2 |
* |
(76 |
/ |
309)
|
= |
0.49190938 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Muraoka (Saburo) Elementary
|
20 |
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 |
67798 |
2494 |
- |
2436 |
= |
58 |
* |
(84 |
/ |
350)
|
= |
13.92 |
| 4 |
67799 |
2484 |
- |
2485 |
= |
-1 |
* |
(98 |
/ |
350)
|
= |
-0.28 |
| 5 |
67800 |
2513 |
- |
2528 |
= |
-15 |
* |
(74 |
/ |
350)
|
= |
-3.17142857 |
| 6 |
67801 |
2566 |
- |
2552 |
= |
14 |
* |
(94 |
/ |
350)
|
= |
3.75999999 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Muraoka (Saburo) Elementary
|
14 |
Last steps
Compute the average
| 2018 |
2019 |
Sum |
Average |
|
20
|
14
|
34.0 |
17.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 29.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 5.0
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:
