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 |
3074218 |
2393 |
- |
2436 |
= |
-43 |
* |
(48 |
/ |
305) |
= |
-6.76721311 |
4 |
3074221 |
2375 |
- |
2485 |
= |
-110 |
* |
(48 |
/ |
305) |
= |
-17.31147539 |
5 |
3074222 |
2398 |
- |
2528 |
= |
-130 |
* |
(48 |
/ |
305) |
= |
-20.45901637 |
6 |
3074225 |
2416 |
- |
2552 |
= |
-136 |
* |
(49 |
/ |
305) |
= |
-21.84918023 |
7 |
3074226 |
2493 |
- |
2567 |
= |
-74 |
* |
(57 |
/ |
305) |
= |
-13.82950813 |
8 |
3074229 |
2472 |
- |
2586 |
= |
-114 |
* |
(55 |
/ |
305) |
= |
-20.55737695 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Woodville Union Elementary
|
-101 |
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 |
94641 |
2405 |
- |
2436 |
= |
-31 |
* |
(47 |
/ |
277) |
= |
-5.25992779 |
4 |
94643 |
2422 |
- |
2485 |
= |
-63 |
* |
(42 |
/ |
277) |
= |
-9.55234652 |
5 |
94645 |
2405 |
- |
2528 |
= |
-123 |
* |
(44 |
/ |
277) |
= |
-19.5379061 |
6 |
94647 |
2422 |
- |
2552 |
= |
-130 |
* |
(44 |
/ |
277) |
= |
-20.64981945 |
7 |
94649 |
2483 |
- |
2567 |
= |
-84 |
* |
(41 |
/ |
277) |
= |
-12.43321296 |
8 |
94651 |
2511 |
- |
2586 |
= |
-75 |
* |
(59 |
/ |
277) |
= |
-15.97472918 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Woodville Union Elementary
|
-83 |
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 |
97421 |
2388 |
- |
2436 |
= |
-48 |
* |
(50 |
/ |
276) |
= |
-8.69565216 |
4 |
97424 |
2430 |
- |
2485 |
= |
-55 |
* |
(50 |
/ |
276) |
= |
-9.9637681 |
5 |
97425 |
2466 |
- |
2528 |
= |
-62 |
* |
(40 |
/ |
276) |
= |
-8.98550723 |
6 |
97427 |
2462 |
- |
2552 |
= |
-90 |
* |
(44 |
/ |
276) |
= |
-14.34782601 |
7 |
97429 |
2440 |
- |
2567 |
= |
-127 |
* |
(46 |
/ |
276) |
= |
-21.16666658 |
8 |
97431 |
2520 |
- |
2586 |
= |
-66 |
* |
(46 |
/ |
276) |
= |
-10.99999996 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Woodville Union Elementary
|
-74 |
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 |
97601 |
2372 |
- |
2436 |
= |
-64 |
* |
(44 |
/ |
275) |
= |
-10.24 |
4 |
97602 |
2402 |
- |
2485 |
= |
-83 |
* |
(51 |
/ |
275) |
= |
-15.39272724 |
5 |
97605 |
2468 |
- |
2528 |
= |
-60 |
* |
(50 |
/ |
275) |
= |
-10.90909086 |
6 |
97606 |
2517 |
- |
2552 |
= |
-35 |
* |
(40 |
/ |
275) |
= |
-5.09090908 |
7 |
97609 |
2426 |
- |
2567 |
= |
-141 |
* |
(41 |
/ |
275) |
= |
-21.02181817 |
8 |
97610 |
2463 |
- |
2586 |
= |
-123 |
* |
(49 |
/ |
275) |
= |
-21.91636361 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Woodville Union Elementary
|
-85 |
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 |
98255 |
2390 |
- |
2436 |
= |
-46 |
* |
(63 |
/ |
297) |
= |
-9.75757575 |
4 |
98256 |
2395 |
- |
2485 |
= |
-90 |
* |
(42 |
/ |
297) |
= |
-12.72727269 |
5 |
98257 |
2440 |
- |
2528 |
= |
-88 |
* |
(51 |
/ |
297) |
= |
-15.11111105 |
6 |
98258 |
2506 |
- |
2552 |
= |
-46 |
* |
(51 |
/ |
297) |
= |
-7.89898987 |
7 |
98259 |
2560 |
- |
2567 |
= |
-7 |
* |
(45 |
/ |
297) |
= |
-1.06060606 |
8 |
98260 |
2478 |
- |
2586 |
= |
-108 |
* |
(45 |
/ |
297) |
= |
-16.36363631 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Woodville Union Elementary
|
-63 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-101
|
-83
|
-74
|
-85
|
-63
|
-406.0 |
-81.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -39.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -123.2
For the lines, you have the data necessary to plot the chart.