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 |
2982858 |
2392 |
- |
2436 |
= |
-44 |
* |
(16 |
/ |
98) |
= |
-7.18367346 |
4 |
2982859 |
2446 |
- |
2485 |
= |
-39 |
* |
(18 |
/ |
98) |
= |
-7.16326529 |
5 |
2982862 |
2477 |
- |
2528 |
= |
-51 |
* |
(13 |
/ |
98) |
= |
-6.76530611 |
6 |
2982863 |
2518 |
- |
2552 |
= |
-34 |
* |
(14 |
/ |
98) |
= |
-4.85714283 |
7 |
2982866 |
2548 |
- |
2567 |
= |
-19 |
* |
(19 |
/ |
98) |
= |
-3.68367347 |
8 |
2982867 |
2574 |
- |
2586 |
= |
-12 |
* |
(18 |
/ |
98) |
= |
-2.20408163 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Browns Elementary
|
-32 |
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 |
91241 |
2447 |
- |
2436 |
= |
11 |
* |
(18 |
/ |
92) |
= |
2.1521739 |
4 |
91243 |
2444 |
- |
2485 |
= |
-41 |
* |
(15 |
/ |
92) |
= |
-6.6847826 |
5 |
91246 |
2479 |
- |
2528 |
= |
-49 |
* |
(15 |
/ |
92) |
= |
-7.98913042 |
6 |
91247 |
2518 |
- |
2552 |
= |
-34 |
* |
(15 |
/ |
92) |
= |
-5.54347825 |
7 |
91249 |
2527 |
- |
2567 |
= |
-40 |
* |
(16 |
/ |
92) |
= |
-6.95652172 |
8 |
91252 |
2560 |
- |
2586 |
= |
-26 |
* |
(13 |
/ |
92) |
= |
-3.67391302 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Browns Elementary
|
-29 |
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 |
94004 |
2416 |
- |
2436 |
= |
-20 |
* |
(18 |
/ |
107) |
= |
-3.36448598 |
4 |
94005 |
2473 |
- |
2485 |
= |
-12 |
* |
(20 |
/ |
107) |
= |
-2.24299064 |
5 |
94008 |
2450 |
- |
2528 |
= |
-78 |
* |
(19 |
/ |
107) |
= |
-13.85046725 |
6 |
94009 |
2521 |
- |
2552 |
= |
-31 |
* |
(17 |
/ |
107) |
= |
-4.92523362 |
7 |
94011 |
2544 |
- |
2567 |
= |
-23 |
* |
(16 |
/ |
107) |
= |
-3.43925233 |
8 |
94014 |
2561 |
- |
2586 |
= |
-25 |
* |
(17 |
/ |
107) |
= |
-3.9719626 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Browns Elementary
|
-32 |
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 |
94217 |
2391 |
- |
2436 |
= |
-45 |
* |
(11 |
/ |
101) |
= |
-4.9009901 |
4 |
94218 |
2435 |
- |
2485 |
= |
-50 |
* |
(16 |
/ |
101) |
= |
-7.92079205 |
5 |
94221 |
2469 |
- |
2528 |
= |
-59 |
* |
(23 |
/ |
101) |
= |
-13.43564355 |
6 |
94222 |
2522 |
- |
2552 |
= |
-30 |
* |
(19 |
/ |
101) |
= |
-5.64356433 |
7 |
94225 |
2553 |
- |
2567 |
= |
-14 |
* |
(17 |
/ |
101) |
= |
-2.35643563 |
8 |
94226 |
2575 |
- |
2586 |
= |
-11 |
* |
(15 |
/ |
101) |
= |
-1.63366336 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Browns Elementary
|
-36 |
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 |
94851 |
2428 |
- |
2436 |
= |
-8 |
* |
(17 |
/ |
95) |
= |
-1.43157894 |
4 |
94852 |
0 |
- |
2485 |
= |
|
* |
(8 |
/ |
95) |
= |
|
5 |
94853 |
2484 |
- |
2528 |
= |
-44 |
* |
(16 |
/ |
95) |
= |
-7.41052629 |
6 |
94854 |
2538 |
- |
2552 |
= |
-14 |
* |
(18 |
/ |
95) |
= |
-2.65263158 |
7 |
94855 |
2540 |
- |
2567 |
= |
-27 |
* |
(19 |
/ |
95) |
= |
-5.4 |
8 |
94856 |
2533 |
- |
2586 |
= |
-53 |
* |
(17 |
/ |
95) |
= |
-9.4842105 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Browns Elementary
|
-26 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-32
|
-29
|
-32
|
-36
|
-26
|
-155.0 |
-31.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -22.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -40.0
For the lines, you have the data necessary to plot the chart.