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 |
1925843 |
2474 |
- |
2436 |
= |
38 |
* |
(23 |
/ |
157) |
= |
5.56687897 |
4 |
1925846 |
2493 |
- |
2485 |
= |
8 |
* |
(26 |
/ |
157) |
= |
1.32484076 |
5 |
1925847 |
2525 |
- |
2528 |
= |
-3 |
* |
(24 |
/ |
157) |
= |
-0.45859873 |
6 |
1925850 |
2551 |
- |
2552 |
= |
-1 |
* |
(30 |
/ |
157) |
= |
-0.1910828 |
7 |
1925851 |
2586 |
- |
2567 |
= |
19 |
* |
(30 |
/ |
157) |
= |
3.63057324 |
8 |
1925854 |
2593 |
- |
2586 |
= |
7 |
* |
(24 |
/ |
157) |
= |
1.07006369 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Southside Elementary
|
11 |
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 |
59319 |
2450 |
- |
2436 |
= |
14 |
* |
(24 |
/ |
159) |
= |
2.11320754 |
4 |
59320 |
2507 |
- |
2485 |
= |
22 |
* |
(25 |
/ |
159) |
= |
3.45911949 |
5 |
59322 |
2485 |
- |
2528 |
= |
-43 |
* |
(27 |
/ |
159) |
= |
-7.30188676 |
6 |
59324 |
2559 |
- |
2552 |
= |
7 |
* |
(23 |
/ |
159) |
= |
1.01257862 |
7 |
59326 |
2569 |
- |
2567 |
= |
2 |
* |
(31 |
/ |
159) |
= |
0.38993711 |
8 |
59329 |
2590 |
- |
2586 |
= |
4 |
* |
(29 |
/ |
159) |
= |
0.72955975 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Southside Elementary
|
0 |
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 |
61063 |
2454 |
- |
2436 |
= |
18 |
* |
(19 |
/ |
152) |
= |
2.25 |
4 |
61065 |
2499 |
- |
2485 |
= |
14 |
* |
(22 |
/ |
152) |
= |
2.02631579 |
5 |
61068 |
2490 |
- |
2528 |
= |
-38 |
* |
(28 |
/ |
152) |
= |
-6.99999999 |
6 |
61069 |
2512 |
- |
2552 |
= |
-40 |
* |
(28 |
/ |
152) |
= |
-7.36842104 |
7 |
61072 |
2569 |
- |
2567 |
= |
2 |
* |
(26 |
/ |
152) |
= |
0.34210526 |
8 |
61074 |
2589 |
- |
2586 |
= |
3 |
* |
(29 |
/ |
152) |
= |
0.57236842 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Southside Elementary
|
-9 |
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 |
61178 |
2438 |
- |
2436 |
= |
2 |
* |
(20 |
/ |
137) |
= |
0.2919708 |
4 |
61181 |
2516 |
- |
2485 |
= |
31 |
* |
(18 |
/ |
137) |
= |
4.07299269 |
5 |
61182 |
2496 |
- |
2528 |
= |
-32 |
* |
(21 |
/ |
137) |
= |
-4.90510947 |
6 |
61184 |
2536 |
- |
2552 |
= |
-16 |
* |
(26 |
/ |
137) |
= |
-3.03649634 |
7 |
61187 |
2546 |
- |
2567 |
= |
-21 |
* |
(26 |
/ |
137) |
= |
-3.98540144 |
8 |
61189 |
2590 |
- |
2586 |
= |
4 |
* |
(26 |
/ |
137) |
= |
0.75912408 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Southside Elementary
|
-7 |
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 |
61418 |
2387 |
- |
2436 |
= |
-49 |
* |
(20 |
/ |
142) |
= |
-6.90140843 |
4 |
61419 |
2518 |
- |
2485 |
= |
33 |
* |
(24 |
/ |
142) |
= |
5.57746477 |
5 |
61420 |
2507 |
- |
2528 |
= |
-21 |
* |
(22 |
/ |
142) |
= |
-3.25352112 |
6 |
61421 |
2538 |
- |
2552 |
= |
-14 |
* |
(23 |
/ |
142) |
= |
-2.26760562 |
7 |
61422 |
2585 |
- |
2567 |
= |
18 |
* |
(25 |
/ |
142) |
= |
3.16901408 |
8 |
61423 |
2554 |
- |
2586 |
= |
-32 |
* |
(28 |
/ |
142) |
= |
-6.30985914 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Southside Elementary
|
-10 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
11
|
0
|
-9
|
-7
|
-10
|
-15.0 |
-3.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 23.25
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -30.75
For the lines, you have the data necessary to plot the chart.