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 |
132846 |
2399 |
- |
2436 |
= |
-37 |
* |
(13 |
/ |
80) |
= |
-6.0125 |
4 |
132847 |
2465 |
- |
2485 |
= |
-20 |
* |
(20 |
/ |
80) |
= |
-5.0 |
5 |
132850 |
2457 |
- |
2528 |
= |
-71 |
* |
(13 |
/ |
80) |
= |
-11.5375 |
6 |
132851 |
2452 |
- |
2552 |
= |
-100 |
* |
(13 |
/ |
80) |
= |
-16.25 |
7 |
132854 |
2513 |
- |
2567 |
= |
-54 |
* |
(11 |
/ |
80) |
= |
-7.425 |
8 |
132855 |
0 |
- |
2586 |
= |
|
* |
(10 |
/ |
80) |
= |
|
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Bangor Union Elementary
|
-46 |
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 |
3795 |
0 |
- |
2436 |
= |
|
* |
(6 |
/ |
77) |
= |
|
4 |
3798 |
2463 |
- |
2485 |
= |
-22 |
* |
(15 |
/ |
77) |
= |
-4.28571427 |
5 |
3800 |
2425 |
- |
2528 |
= |
-103 |
* |
(19 |
/ |
77) |
= |
-25.41558434 |
6 |
3801 |
2468 |
- |
2552 |
= |
-84 |
* |
(14 |
/ |
77) |
= |
-15.2727272 |
7 |
3803 |
2485 |
- |
2567 |
= |
-82 |
* |
(14 |
/ |
77) |
= |
-14.90909084 |
8 |
3805 |
0 |
- |
2586 |
= |
|
* |
(9 |
/ |
77) |
= |
|
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Bangor Union Elementary
|
-60 |
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 |
3884 |
0 |
- |
2436 |
= |
|
* |
(0 |
/ |
56) |
= |
|
4 |
3885 |
0 |
- |
2485 |
= |
|
* |
(0 |
/ |
56) |
= |
|
5 |
3888 |
0 |
- |
2528 |
= |
|
* |
(0 |
/ |
56) |
= |
|
6 |
3890 |
2435 |
- |
2552 |
= |
-117 |
* |
(14 |
/ |
56) |
= |
-29.25 |
7 |
3891 |
0 |
- |
2567 |
= |
|
* |
(0 |
/ |
56) |
= |
|
8 |
3893 |
0 |
- |
2586 |
= |
|
* |
(0 |
/ |
56) |
= |
|
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Bangor Union Elementary
|
-29 |
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 |
3887 |
0 |
- |
2436 |
= |
|
* |
(0 |
/ |
49) |
= |
|
4 |
3890 |
0 |
- |
2485 |
= |
|
* |
(0 |
/ |
49) |
= |
|
5 |
3891 |
0 |
- |
2528 |
= |
|
* |
(0 |
/ |
49) |
= |
|
6 |
3894 |
0 |
- |
2552 |
= |
|
* |
(0 |
/ |
49) |
= |
|
7 |
3895 |
0 |
- |
2567 |
= |
|
* |
(0 |
/ |
49) |
= |
|
8 |
3898 |
0 |
- |
2586 |
= |
|
* |
(0 |
/ |
49) |
= |
|
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Bangor Union Elementary
|
|
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 |
3932 |
2399 |
- |
2436 |
= |
-37 |
* |
(18 |
/ |
75) |
= |
-8.88 |
4 |
3933 |
2457 |
- |
2485 |
= |
-28 |
* |
(14 |
/ |
75) |
= |
-5.22666665 |
5 |
3934 |
2479 |
- |
2528 |
= |
-49 |
* |
(13 |
/ |
75) |
= |
-8.49333332 |
6 |
3935 |
0 |
- |
2552 |
= |
|
* |
(5 |
/ |
75) |
= |
|
7 |
3936 |
2509 |
- |
2567 |
= |
-58 |
* |
(12 |
/ |
75) |
= |
-9.28 |
8 |
3937 |
2400 |
- |
2586 |
= |
-186 |
* |
(13 |
/ |
75) |
= |
-32.23999994 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Bangor Union Elementary
|
-64 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-46
|
-60
|
-29
|
|
-64
|
-199.0 |
-39.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -4.75
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -94.75
For the lines, you have the data necessary to plot the chart.