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 |
592093 |
2395 |
- |
2436 |
= |
-41 |
* |
(106 |
/ |
586) |
= |
-7.41638225 |
4 |
592096 |
2454 |
- |
2485 |
= |
-31 |
* |
(108 |
/ |
586) |
= |
-5.71331057 |
5 |
592097 |
2490 |
- |
2528 |
= |
-38 |
* |
(110 |
/ |
586) |
= |
-7.13310578 |
6 |
592100 |
2493 |
- |
2552 |
= |
-59 |
* |
(96 |
/ |
586) |
= |
-9.66552898 |
7 |
592101 |
2516 |
- |
2567 |
= |
-51 |
* |
(74 |
/ |
586) |
= |
-6.44027301 |
8 |
592104 |
2547 |
- |
2586 |
= |
-39 |
* |
(92 |
/ |
586) |
= |
-6.12286689 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Susanville Elementary
|
-42 |
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 |
18943 |
2414 |
- |
2436 |
= |
-22 |
* |
(113 |
/ |
585) |
= |
-4.24957265 |
4 |
18945 |
2457 |
- |
2485 |
= |
-28 |
* |
(101 |
/ |
585) |
= |
-4.83418802 |
5 |
18947 |
2485 |
- |
2528 |
= |
-43 |
* |
(107 |
/ |
585) |
= |
-7.86495723 |
6 |
18948 |
2498 |
- |
2552 |
= |
-54 |
* |
(103 |
/ |
585) |
= |
-9.5076923 |
7 |
18951 |
2511 |
- |
2567 |
= |
-56 |
* |
(87 |
/ |
585) |
= |
-8.32820509 |
8 |
18952 |
2578 |
- |
2586 |
= |
-8 |
* |
(74 |
/ |
585) |
= |
-1.01196581 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Susanville Elementary
|
-36 |
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 |
19274 |
2416 |
- |
2436 |
= |
-20 |
* |
(126 |
/ |
657) |
= |
-3.83561642 |
4 |
19275 |
2471 |
- |
2485 |
= |
-14 |
* |
(115 |
/ |
657) |
= |
-2.45053271 |
5 |
19277 |
2486 |
- |
2528 |
= |
-42 |
* |
(109 |
/ |
657) |
= |
-6.9680365 |
6 |
19280 |
2500 |
- |
2552 |
= |
-52 |
* |
(99 |
/ |
657) |
= |
-7.83561641 |
7 |
19281 |
2491 |
- |
2567 |
= |
-76 |
* |
(108 |
/ |
657) |
= |
-12.49315064 |
8 |
19283 |
2542 |
- |
2586 |
= |
-44 |
* |
(100 |
/ |
657) |
= |
-6.69710804 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Susanville Elementary
|
-40 |
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 |
19275 |
2412 |
- |
2436 |
= |
-24 |
* |
(126 |
/ |
672) |
= |
-4.5 |
4 |
19278 |
2468 |
- |
2485 |
= |
-17 |
* |
(131 |
/ |
672) |
= |
-3.31398809 |
5 |
19279 |
2460 |
- |
2528 |
= |
-68 |
* |
(108 |
/ |
672) |
= |
-10.92857138 |
6 |
19282 |
2472 |
- |
2552 |
= |
-80 |
* |
(101 |
/ |
672) |
= |
-12.02380952 |
7 |
19283 |
2510 |
- |
2567 |
= |
-57 |
* |
(103 |
/ |
672) |
= |
-8.73660711 |
8 |
19286 |
2536 |
- |
2586 |
= |
-50 |
* |
(103 |
/ |
672) |
= |
-7.66369045 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Susanville Elementary
|
-47 |
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 |
19423 |
2404 |
- |
2436 |
= |
-32 |
* |
(126 |
/ |
673) |
= |
-5.99108467 |
4 |
19424 |
2465 |
- |
2485 |
= |
-20 |
* |
(129 |
/ |
673) |
= |
-3.83358098 |
5 |
19425 |
2482 |
- |
2528 |
= |
-46 |
* |
(124 |
/ |
673) |
= |
-8.47548289 |
6 |
19426 |
2480 |
- |
2552 |
= |
-72 |
* |
(105 |
/ |
673) |
= |
-11.23328376 |
7 |
19427 |
2490 |
- |
2567 |
= |
-77 |
* |
(96 |
/ |
673) |
= |
-10.98365522 |
8 |
19428 |
2543 |
- |
2586 |
= |
-43 |
* |
(93 |
/ |
673) |
= |
-5.9420505 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Susanville Elementary
|
-46 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-42
|
-36
|
-40
|
-47
|
-46
|
-211.0 |
-42.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -30.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -54.2
For the lines, you have the data necessary to plot the chart.