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 |
602996 |
2444 |
- |
2436 |
= |
8 |
* |
(1532 |
/ |
10928) |
= |
1.12152269 |
4 |
602999 |
2481 |
- |
2485 |
= |
-4 |
* |
(1535 |
/ |
10928) |
= |
-0.56185944 |
5 |
603000 |
2512 |
- |
2528 |
= |
-16 |
* |
(1538 |
/ |
10928) |
= |
-2.25183016 |
6 |
603003 |
2547 |
- |
2552 |
= |
-5 |
* |
(1599 |
/ |
10928) |
= |
-0.73160688 |
7 |
603004 |
2551 |
- |
2567 |
= |
-16 |
* |
(1595 |
/ |
10928) |
= |
-2.3352855 |
8 |
603007 |
2584 |
- |
2586 |
= |
-2 |
* |
(1520 |
/ |
10928) |
= |
-0.27818448 |
11 |
603008 |
2603 |
- |
2628 |
= |
-25 |
* |
(1609 |
/ |
10928) |
= |
-3.6809114 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for ABC Unified
|
-9 |
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 |
19345 |
2453 |
- |
2436 |
= |
17 |
* |
(1542 |
/ |
11023) |
= |
2.37811847 |
4 |
19347 |
2492 |
- |
2485 |
= |
7 |
* |
(1559 |
/ |
11023) |
= |
0.99002086 |
5 |
19349 |
2521 |
- |
2528 |
= |
-7 |
* |
(1539 |
/ |
11023) |
= |
-0.97732015 |
6 |
19351 |
2558 |
- |
2552 |
= |
6 |
* |
(1567 |
/ |
11023) |
= |
0.85294384 |
7 |
19353 |
2572 |
- |
2567 |
= |
5 |
* |
(1608 |
/ |
11023) |
= |
0.72938402 |
8 |
19354 |
2585 |
- |
2586 |
= |
-1 |
* |
(1585 |
/ |
11023) |
= |
-0.14379026 |
11 |
19357 |
2617 |
- |
2628 |
= |
-11 |
* |
(1623 |
/ |
11023) |
= |
-1.61961353 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for ABC Unified
|
2 |
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 |
19641 |
2457 |
- |
2436 |
= |
21 |
* |
(1469 |
/ |
11074) |
= |
2.78571428 |
4 |
19642 |
2490 |
- |
2485 |
= |
5 |
* |
(1592 |
/ |
11074) |
= |
0.71880079 |
5 |
19645 |
2516 |
- |
2528 |
= |
-12 |
* |
(1586 |
/ |
11074) |
= |
-1.71862019 |
6 |
19647 |
2561 |
- |
2552 |
= |
9 |
* |
(1611 |
/ |
11074) |
= |
1.309283 |
7 |
19649 |
2576 |
- |
2567 |
= |
9 |
* |
(1561 |
/ |
11074) |
= |
1.26864728 |
8 |
19651 |
2599 |
- |
2586 |
= |
13 |
* |
(1610 |
/ |
11074) |
= |
1.89001263 |
11 |
19652 |
2619 |
- |
2628 |
= |
-9 |
* |
(1645 |
/ |
11074) |
= |
-1.3369153 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for ABC Unified
|
5 |
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 |
19637 |
2460 |
- |
2436 |
= |
24 |
* |
(1409 |
/ |
10711) |
= |
3.15712817 |
4 |
19639 |
2491 |
- |
2485 |
= |
6 |
* |
(1468 |
/ |
10711) |
= |
0.82233218 |
5 |
19641 |
2512 |
- |
2528 |
= |
-16 |
* |
(1576 |
/ |
10711) |
= |
-2.35421528 |
6 |
19643 |
2558 |
- |
2552 |
= |
6 |
* |
(1610 |
/ |
10711) |
= |
0.90187657 |
7 |
19645 |
2576 |
- |
2567 |
= |
9 |
* |
(1593 |
/ |
10711) |
= |
1.33853048 |
8 |
19647 |
2608 |
- |
2586 |
= |
22 |
* |
(1563 |
/ |
10711) |
= |
3.2103445 |
11 |
19649 |
2622 |
- |
2628 |
= |
-6 |
* |
(1492 |
/ |
10711) |
= |
-0.8357763 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for ABC Unified
|
6 |
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 |
19822 |
2461 |
- |
2436 |
= |
25 |
* |
(1471 |
/ |
10803) |
= |
3.40414698 |
4 |
19823 |
2496 |
- |
2485 |
= |
11 |
* |
(1448 |
/ |
10803) |
= |
1.47440525 |
5 |
19824 |
2521 |
- |
2528 |
= |
-7 |
* |
(1475 |
/ |
10803) |
= |
-0.95575303 |
6 |
19825 |
2558 |
- |
2552 |
= |
6 |
* |
(1612 |
/ |
10803) |
= |
0.89530685 |
7 |
19826 |
2575 |
- |
2567 |
= |
8 |
* |
(1644 |
/ |
10803) |
= |
1.2174396 |
8 |
19827 |
2608 |
- |
2586 |
= |
22 |
* |
(1585 |
/ |
10803) |
= |
3.22780709 |
11 |
19828 |
2622 |
- |
2628 |
= |
-6 |
* |
(1568 |
/ |
10803) |
= |
-0.8708692 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for ABC Unified
|
8 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-9
|
2
|
5
|
6
|
8
|
12.0 |
2.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 20.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -15.6
For the lines, you have the data necessary to plot the chart.