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 |
1119989 |
2439 |
- |
2436 |
= |
3 |
* |
(759 |
/ |
3112) |
= |
0.7316838 |
4 |
1119992 |
2472 |
- |
2485 |
= |
-13 |
* |
(782 |
/ |
3112) |
= |
-3.26670951 |
5 |
1119993 |
2510 |
- |
2528 |
= |
-18 |
* |
(772 |
/ |
3112) |
= |
-4.46529562 |
6 |
1119996 |
2536 |
- |
2552 |
= |
-16 |
* |
(799 |
/ |
3112) |
= |
-4.10796914 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Sulphur Springs Union
|
-11 |
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 |
34976 |
2446 |
- |
2436 |
= |
10 |
* |
(722 |
/ |
3057) |
= |
2.3617926 |
4 |
34978 |
2481 |
- |
2485 |
= |
-4 |
* |
(753 |
/ |
3057) |
= |
-0.98527968 |
5 |
34980 |
2505 |
- |
2528 |
= |
-23 |
* |
(787 |
/ |
3057) |
= |
-5.92116453 |
6 |
34981 |
2537 |
- |
2552 |
= |
-15 |
* |
(795 |
/ |
3057) |
= |
-3.90088322 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Sulphur Springs Union
|
-8 |
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 |
35644 |
2451 |
- |
2436 |
= |
15 |
* |
(753 |
/ |
3044) |
= |
3.71057819 |
4 |
35646 |
2480 |
- |
2485 |
= |
-5 |
* |
(753 |
/ |
3044) |
= |
-1.2368594 |
5 |
35648 |
2511 |
- |
2528 |
= |
-17 |
* |
(752 |
/ |
3044) |
= |
-4.19973717 |
6 |
35649 |
2543 |
- |
2552 |
= |
-9 |
* |
(786 |
/ |
3044) |
= |
-2.32391589 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Sulphur Springs Union
|
-4 |
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 |
35654 |
2445 |
- |
2436 |
= |
9 |
* |
(728 |
/ |
3028) |
= |
2.16380449 |
4 |
35655 |
2487 |
- |
2485 |
= |
2 |
* |
(761 |
/ |
3028) |
= |
0.50264201 |
5 |
35658 |
2505 |
- |
2528 |
= |
-23 |
* |
(752 |
/ |
3028) |
= |
-5.71202114 |
6 |
35659 |
2546 |
- |
2552 |
= |
-6 |
* |
(787 |
/ |
3028) |
= |
-1.55944517 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Sulphur Springs Union
|
-5 |
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 |
35817 |
2448 |
- |
2436 |
= |
12 |
* |
(713 |
/ |
2984) |
= |
2.86729222 |
4 |
35818 |
2487 |
- |
2485 |
= |
2 |
* |
(744 |
/ |
2984) |
= |
0.49865952 |
5 |
35819 |
2516 |
- |
2528 |
= |
-12 |
* |
(758 |
/ |
2984) |
= |
-3.04825736 |
6 |
35820 |
2537 |
- |
2552 |
= |
-15 |
* |
(769 |
/ |
2984) |
= |
-3.86561661 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Sulphur Springs Union
|
-4 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-11
|
-8
|
-4
|
-5
|
-4
|
-32.0 |
-6.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 2.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -15.4
For the lines, you have the data necessary to plot the chart.