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 |
773030 |
2473 |
- |
2436 |
= |
37 |
* |
(125 |
/ |
385)
|
= |
12.01298699 |
4 |
773031 |
2508 |
- |
2485 |
= |
23 |
* |
(129 |
/ |
385)
|
= |
7.70649351 |
5 |
773034 |
2547 |
- |
2528 |
= |
19 |
* |
(131 |
/ |
385)
|
= |
6.46493506 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Lowell Elementary
|
26 |
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 |
24240 |
2480 |
- |
2436 |
= |
44 |
* |
(128 |
/ |
393)
|
= |
14.33078878 |
4 |
24242 |
2531 |
- |
2485 |
= |
46 |
* |
(136 |
/ |
393)
|
= |
15.91857503 |
5 |
24245 |
2549 |
- |
2528 |
= |
21 |
* |
(129 |
/ |
393)
|
= |
6.89312975 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Lowell Elementary
|
37 |
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 |
24741 |
2479 |
- |
2436 |
= |
43 |
* |
(122 |
/ |
380)
|
= |
13.80526313 |
4 |
24744 |
2538 |
- |
2485 |
= |
53 |
* |
(125 |
/ |
380)
|
= |
17.4342105 |
5 |
24746 |
2572 |
- |
2528 |
= |
44 |
* |
(133 |
/ |
380)
|
= |
15.4 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Lowell Elementary
|
47 |
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 |
24764 |
2482 |
- |
2436 |
= |
46 |
* |
(128 |
/ |
383)
|
= |
15.37336813 |
4 |
24767 |
2531 |
- |
2485 |
= |
46 |
* |
(123 |
/ |
383)
|
= |
14.77284595 |
5 |
24768 |
2559 |
- |
2528 |
= |
31 |
* |
(132 |
/ |
383)
|
= |
10.68407309 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Lowell Elementary
|
41 |
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 |
24934 |
2500 |
- |
2436 |
= |
64 |
* |
(96 |
/ |
352)
|
= |
17.45454541 |
4 |
24935 |
2536 |
- |
2485 |
= |
51 |
* |
(131 |
/ |
352)
|
= |
18.98011359 |
5 |
24936 |
2566 |
- |
2528 |
= |
38 |
* |
(125 |
/ |
352)
|
= |
13.49431817 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Lowell Elementary
|
50 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
26
|
37
|
47
|
41
|
50
|
201.0 |
40.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 67.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 13.2
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: