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 |
1301555 |
2392 |
- |
2436 |
= |
-44 |
* |
(283 |
/ |
1689) |
= |
-7.3724097 |
4 |
1301556 |
2434 |
- |
2485 |
= |
-51 |
* |
(268 |
/ |
1689) |
= |
-8.09236232 |
5 |
1301559 |
2434 |
- |
2528 |
= |
-94 |
* |
(282 |
/ |
1689) |
= |
-15.69449371 |
6 |
1301560 |
2451 |
- |
2552 |
= |
-101 |
* |
(280 |
/ |
1689) |
= |
-16.74363527 |
7 |
1301563 |
2484 |
- |
2567 |
= |
-83 |
* |
(300 |
/ |
1689) |
= |
-14.74245112 |
8 |
1301564 |
2499 |
- |
2586 |
= |
-87 |
* |
(276 |
/ |
1689) |
= |
-14.21669619 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Livingston Union
|
-77 |
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 |
40834 |
2397 |
- |
2436 |
= |
-39 |
* |
(287 |
/ |
1700) |
= |
-6.58411763 |
4 |
40837 |
2437 |
- |
2485 |
= |
-48 |
* |
(280 |
/ |
1700) |
= |
-7.90588234 |
5 |
40838 |
2441 |
- |
2528 |
= |
-87 |
* |
(254 |
/ |
1700) |
= |
-12.99882347 |
6 |
40841 |
2456 |
- |
2552 |
= |
-96 |
* |
(280 |
/ |
1700) |
= |
-15.81176467 |
7 |
40842 |
2483 |
- |
2567 |
= |
-84 |
* |
(291 |
/ |
1700) |
= |
-14.37882348 |
8 |
40844 |
2482 |
- |
2586 |
= |
-104 |
* |
(308 |
/ |
1700) |
= |
-18.84235288 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Livingston Union
|
-77 |
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 |
41838 |
2424 |
- |
2436 |
= |
-12 |
* |
(243 |
/ |
1611) |
= |
-1.81005586 |
4 |
41839 |
2434 |
- |
2485 |
= |
-51 |
* |
(275 |
/ |
1611) |
= |
-8.70577278 |
5 |
41842 |
2436 |
- |
2528 |
= |
-92 |
* |
(277 |
/ |
1611) |
= |
-15.81874606 |
6 |
41843 |
2467 |
- |
2552 |
= |
-85 |
* |
(254 |
/ |
1611) |
= |
-13.40161383 |
7 |
41845 |
2484 |
- |
2567 |
= |
-83 |
* |
(273 |
/ |
1611) |
= |
-14.06517685 |
8 |
41847 |
2479 |
- |
2586 |
= |
-107 |
* |
(289 |
/ |
1611) |
= |
-19.19490997 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Livingston Union
|
-73 |
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 |
41871 |
2410 |
- |
2436 |
= |
-26 |
* |
(266 |
/ |
1611) |
= |
-4.29298571 |
4 |
41872 |
2455 |
- |
2485 |
= |
-30 |
* |
(242 |
/ |
1611) |
= |
-4.50651768 |
5 |
41875 |
2445 |
- |
2528 |
= |
-83 |
* |
(276 |
/ |
1611) |
= |
-14.21973928 |
6 |
41876 |
2479 |
- |
2552 |
= |
-73 |
* |
(280 |
/ |
1611) |
= |
-12.68777157 |
7 |
41879 |
2473 |
- |
2567 |
= |
-94 |
* |
(267 |
/ |
1611) |
= |
-15.5791433 |
8 |
41880 |
2476 |
- |
2586 |
= |
-110 |
* |
(280 |
/ |
1611) |
= |
-19.1185599 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Livingston Union
|
-70 |
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 |
42019 |
2420 |
- |
2436 |
= |
-16 |
* |
(284 |
/ |
1598) |
= |
-2.84355443 |
4 |
42020 |
2468 |
- |
2485 |
= |
-17 |
* |
(254 |
/ |
1598) |
= |
-2.70212765 |
5 |
42021 |
2468 |
- |
2528 |
= |
-60 |
* |
(239 |
/ |
1598) |
= |
-8.97371712 |
6 |
42022 |
2467 |
- |
2552 |
= |
-85 |
* |
(279 |
/ |
1598) |
= |
-14.84042549 |
7 |
42023 |
2491 |
- |
2567 |
= |
-76 |
* |
(274 |
/ |
1598) |
= |
-13.03128908 |
8 |
42024 |
2457 |
- |
2586 |
= |
-129 |
* |
(268 |
/ |
1598) |
= |
-21.63454317 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Livingston Union
|
-64 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-77
|
-77
|
-73
|
-70
|
-64
|
-361.0 |
-72.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -57.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -87.2
For the lines, you have the data necessary to plot the chart.