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 |
2302536 |
2402 |
- |
2436 |
= |
-34 |
* |
(69 |
/ |
17629) |
= |
-0.13307617 |
4 |
2302537 |
2478 |
- |
2485 |
= |
-7 |
* |
(50 |
/ |
17629) |
= |
-0.01985365 |
5 |
2302540 |
2499 |
- |
2528 |
= |
-29 |
* |
(50 |
/ |
17629) |
= |
-0.08225082 |
6 |
2302541 |
0 |
- |
2552 |
= |
|
* |
(0 |
/ |
17629) |
= |
|
7 |
2302544 |
2515 |
- |
2567 |
= |
-52 |
* |
(5540 |
/ |
17629) |
= |
-16.34125584 |
8 |
2302545 |
2517 |
- |
2586 |
= |
-69 |
* |
(5507 |
/ |
17629) |
= |
-21.55442735 |
11 |
2302548 |
2561 |
- |
2628 |
= |
-67 |
* |
(6413 |
/ |
17629) |
= |
-24.372965 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Sweetwater Union High
|
-63 |
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 |
70513 |
0 |
- |
2436 |
= |
|
* |
(0 |
/ |
17324) |
= |
|
5 |
70515 |
0 |
- |
2528 |
= |
|
* |
(1 |
/ |
17324) |
= |
|
7 |
70517 |
2523 |
- |
2567 |
= |
-44 |
* |
(5326 |
/ |
17324) |
= |
-13.52712997 |
8 |
70520 |
2525 |
- |
2586 |
= |
-61 |
* |
(5499 |
/ |
17324) |
= |
-19.362676 |
11 |
70522 |
2566 |
- |
2628 |
= |
-62 |
* |
(6498 |
/ |
17324) |
= |
-23.25536827 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Sweetwater Union High
|
-56 |
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 |
7 |
72377 |
2523 |
- |
2567 |
= |
-44 |
* |
(5265 |
/ |
17403) |
= |
-13.31149798 |
8 |
72379 |
2531 |
- |
2586 |
= |
-55 |
* |
(5381 |
/ |
17403) |
= |
-17.00597597 |
11 |
72381 |
2559 |
- |
2628 |
= |
-69 |
* |
(6757 |
/ |
17403) |
= |
-26.79038091 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Sweetwater Union High
|
-57 |
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 |
7 |
72512 |
2521 |
- |
2567 |
= |
-46 |
* |
(5382 |
/ |
17418) |
= |
-14.21357215 |
8 |
72514 |
2531 |
- |
2586 |
= |
-55 |
* |
(5355 |
/ |
17418) |
= |
-16.90923179 |
11 |
72516 |
2558 |
- |
2628 |
= |
-70 |
* |
(6681 |
/ |
17418) |
= |
-26.84981054 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Sweetwater Union High
|
-58 |
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 |
7 |
73007 |
2524 |
- |
2567 |
= |
-43 |
* |
(5483 |
/ |
17208) |
= |
-13.70112737 |
8 |
73008 |
2532 |
- |
2586 |
= |
-54 |
* |
(5432 |
/ |
17208) |
= |
-17.04602507 |
11 |
73009 |
2556 |
- |
2628 |
= |
-72 |
* |
(6293 |
/ |
17208) |
= |
-26.33054393 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Sweetwater Union High
|
-57 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-63
|
-56
|
-57
|
-58
|
-57
|
-291.0 |
-58.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -52.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -64.2
For the lines, you have the data necessary to plot the chart.