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 |
482461 |
2407 |
- |
2436 |
= |
-29 |
* |
(1847 |
/ |
11309) |
= |
-4.73631619 |
4 |
482464 |
2445 |
- |
2485 |
= |
-40 |
* |
(1865 |
/ |
11309) |
= |
-6.59651604 |
5 |
482465 |
2454 |
- |
2528 |
= |
-74 |
* |
(1868 |
/ |
11309) |
= |
-12.22318502 |
6 |
482468 |
2493 |
- |
2552 |
= |
-59 |
* |
(1893 |
/ |
11309) |
= |
-9.8759395 |
7 |
482469 |
2503 |
- |
2567 |
= |
-64 |
* |
(1898 |
/ |
11309) |
= |
-10.74117958 |
8 |
482472 |
2524 |
- |
2586 |
= |
-62 |
* |
(1938 |
/ |
11309) |
= |
-10.62481209 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Panama-Buena Vista Union
|
-55 |
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 |
15330 |
2421 |
- |
2436 |
= |
-15 |
* |
(1709 |
/ |
11297) |
= |
-2.2691865 |
4 |
15331 |
2448 |
- |
2485 |
= |
-37 |
* |
(1884 |
/ |
11297) |
= |
-6.17048771 |
5 |
15333 |
2467 |
- |
2528 |
= |
-61 |
* |
(1892 |
/ |
11297) |
= |
-10.21616355 |
6 |
15335 |
2491 |
- |
2552 |
= |
-61 |
* |
(1959 |
/ |
11297) |
= |
-10.57794101 |
7 |
15338 |
2514 |
- |
2567 |
= |
-53 |
* |
(1963 |
/ |
11297) |
= |
-9.20943609 |
8 |
15339 |
2528 |
- |
2586 |
= |
-58 |
* |
(1890 |
/ |
11297) |
= |
-9.70346107 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Panama-Buena Vista Union
|
-48 |
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 |
15651 |
2423 |
- |
2436 |
= |
-13 |
* |
(2010 |
/ |
11563) |
= |
-2.25979416 |
4 |
15653 |
2460 |
- |
2485 |
= |
-25 |
* |
(1736 |
/ |
11563) |
= |
-3.7533512 |
5 |
15654 |
2467 |
- |
2528 |
= |
-61 |
* |
(1905 |
/ |
11563) |
= |
-10.04972755 |
6 |
15656 |
2498 |
- |
2552 |
= |
-54 |
* |
(1981 |
/ |
11563) |
= |
-9.25140533 |
7 |
15658 |
2515 |
- |
2567 |
= |
-52 |
* |
(1979 |
/ |
11563) |
= |
-8.89976646 |
8 |
15661 |
2526 |
- |
2586 |
= |
-60 |
* |
(1952 |
/ |
11563) |
= |
-10.12885926 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Panama-Buena Vista Union
|
-44 |
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 |
15667 |
2424 |
- |
2436 |
= |
-12 |
* |
(1905 |
/ |
11716) |
= |
-1.95117787 |
4 |
15670 |
2465 |
- |
2485 |
= |
-20 |
* |
(2040 |
/ |
11716) |
= |
-3.4824172 |
5 |
15671 |
2475 |
- |
2528 |
= |
-53 |
* |
(1795 |
/ |
11716) |
= |
-8.12009216 |
6 |
15674 |
2499 |
- |
2552 |
= |
-53 |
* |
(1996 |
/ |
11716) |
= |
-9.02936154 |
7 |
15675 |
2507 |
- |
2567 |
= |
-60 |
* |
(1988 |
/ |
11716) |
= |
-10.1809491 |
8 |
15678 |
2526 |
- |
2586 |
= |
-60 |
* |
(1992 |
/ |
11716) |
= |
-10.20143388 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Panama-Buena Vista Union
|
-43 |
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 |
15784 |
2436 |
- |
2436 |
= |
0 |
* |
(2004 |
/ |
11987) |
= |
0.0 |
4 |
15785 |
2471 |
- |
2485 |
= |
-14 |
* |
(1942 |
/ |
11987) |
= |
-2.26812379 |
5 |
15786 |
2484 |
- |
2528 |
= |
-44 |
* |
(2090 |
/ |
11987) |
= |
-7.67164424 |
6 |
15787 |
2509 |
- |
2552 |
= |
-43 |
* |
(1856 |
/ |
11987) |
= |
-6.65787933 |
7 |
15788 |
2510 |
- |
2567 |
= |
-57 |
* |
(2071 |
/ |
11987) |
= |
-9.84791856 |
8 |
15789 |
2525 |
- |
2586 |
= |
-61 |
* |
(2024 |
/ |
11987) |
= |
-10.29982481 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Panama-Buena Vista Union
|
-37 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-55
|
-48
|
-44
|
-43
|
-37
|
-227.0 |
-45.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -27.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -63.4
For the lines, you have the data necessary to plot the chart.