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 |
2741925 |
2420 |
- |
2436 |
= |
-16 |
* |
(223 |
/ |
1239) |
= |
-2.87974171 |
4 |
2741926 |
2449 |
- |
2485 |
= |
-36 |
* |
(191 |
/ |
1239) |
= |
-5.54963677 |
5 |
2741929 |
2468 |
- |
2528 |
= |
-60 |
* |
(203 |
/ |
1239) |
= |
-9.83050842 |
6 |
2741930 |
2478 |
- |
2552 |
= |
-74 |
* |
(207 |
/ |
1239) |
= |
-12.36319606 |
7 |
2741933 |
2536 |
- |
2567 |
= |
-31 |
* |
(191 |
/ |
1239) |
= |
-4.77885389 |
8 |
2741934 |
2571 |
- |
2586 |
= |
-15 |
* |
(190 |
/ |
1239) |
= |
-2.30024213 |
11 |
2741937 |
2579 |
- |
2628 |
= |
-49 |
* |
(34 |
/ |
1239) |
= |
-1.34463277 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Live Oak Elementary
|
-39 |
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 |
83356 |
2432 |
- |
2436 |
= |
-4 |
* |
(205 |
/ |
1255) |
= |
-0.65338645 |
4 |
83358 |
2477 |
- |
2485 |
= |
-8 |
* |
(224 |
/ |
1255) |
= |
-1.42788844 |
5 |
83360 |
2479 |
- |
2528 |
= |
-49 |
* |
(195 |
/ |
1255) |
= |
-7.61354581 |
6 |
83363 |
2473 |
- |
2552 |
= |
-79 |
* |
(202 |
/ |
1255) |
= |
-12.71553783 |
7 |
83365 |
2505 |
- |
2567 |
= |
-62 |
* |
(210 |
/ |
1255) |
= |
-10.37450197 |
8 |
83367 |
2574 |
- |
2586 |
= |
-12 |
* |
(188 |
/ |
1255) |
= |
-1.79760955 |
11 |
83368 |
2575 |
- |
2628 |
= |
-53 |
* |
(31 |
/ |
1255) |
= |
-1.30916334 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Live Oak 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 |
85675 |
2426 |
- |
2436 |
= |
-10 |
* |
(207 |
/ |
1273) |
= |
-1.62608012 |
4 |
85676 |
2482 |
- |
2485 |
= |
-3 |
* |
(190 |
/ |
1273) |
= |
-0.44776119 |
5 |
85678 |
2508 |
- |
2528 |
= |
-20 |
* |
(225 |
/ |
1273) |
= |
-3.53495678 |
6 |
85680 |
2483 |
- |
2552 |
= |
-69 |
* |
(202 |
/ |
1273) |
= |
-10.94893946 |
7 |
85682 |
2507 |
- |
2567 |
= |
-60 |
* |
(205 |
/ |
1273) |
= |
-9.6622152 |
8 |
85684 |
2537 |
- |
2586 |
= |
-49 |
* |
(203 |
/ |
1273) |
= |
-7.81382557 |
11 |
85686 |
2570 |
- |
2628 |
= |
-58 |
* |
(41 |
/ |
1273) |
= |
-1.86802827 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Live Oak Elementary
|
-36 |
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 |
85902 |
2448 |
- |
2436 |
= |
12 |
* |
(191 |
/ |
1234) |
= |
1.85737439 |
4 |
85903 |
2471 |
- |
2485 |
= |
-14 |
* |
(206 |
/ |
1234) |
= |
-2.33711506 |
5 |
85906 |
2518 |
- |
2528 |
= |
-10 |
* |
(190 |
/ |
1234) |
= |
-1.53970826 |
6 |
85907 |
2533 |
- |
2552 |
= |
-19 |
* |
(225 |
/ |
1234) |
= |
-3.46434359 |
7 |
85909 |
2517 |
- |
2567 |
= |
-50 |
* |
(185 |
/ |
1234) |
= |
-7.4959481 |
8 |
85912 |
2554 |
- |
2586 |
= |
-32 |
* |
(205 |
/ |
1234) |
= |
-5.31604538 |
11 |
85914 |
2580 |
- |
2628 |
= |
-48 |
* |
(32 |
/ |
1234) |
= |
-1.24473254 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Live Oak Elementary
|
-20 |
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 |
86502 |
2442 |
- |
2436 |
= |
6 |
* |
(186 |
/ |
1193) |
= |
0.93545683 |
4 |
86503 |
2490 |
- |
2485 |
= |
5 |
* |
(188 |
/ |
1193) |
= |
0.78792959 |
5 |
86504 |
2500 |
- |
2528 |
= |
-28 |
* |
(203 |
/ |
1193) |
= |
-4.76445934 |
6 |
86505 |
2532 |
- |
2552 |
= |
-20 |
* |
(185 |
/ |
1193) |
= |
-3.10142496 |
7 |
86506 |
2540 |
- |
2567 |
= |
-27 |
* |
(218 |
/ |
1193) |
= |
-4.93378036 |
8 |
86507 |
2547 |
- |
2586 |
= |
-39 |
* |
(184 |
/ |
1193) |
= |
-6.01508798 |
11 |
86508 |
2592 |
- |
2628 |
= |
-36 |
* |
(29 |
/ |
1193) |
= |
-0.87510478 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Live Oak Elementary
|
-18 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-39
|
-36
|
-36
|
-20
|
-18
|
-149.0 |
-29.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -2.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -56.8
For the lines, you have the data necessary to plot the chart.