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 |
949769 |
2405 |
- |
2436 |
= |
-31 |
* |
(50 |
/ |
185)
|
= |
-8.37837837 |
| 4 |
949770 |
2453 |
- |
2485 |
= |
-32 |
* |
(49 |
/ |
185)
|
= |
-8.47567565 |
| 5 |
949773 |
2465 |
- |
2528 |
= |
-63 |
* |
(34 |
/ |
185)
|
= |
-11.57837833 |
| 6 |
949774 |
2495 |
- |
2552 |
= |
-57 |
* |
(52 |
/ |
185)
|
= |
-16.02162162 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Rockdale Visual & Performing Arts Magnet
|
-44 |
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 |
30045 |
2438 |
- |
2436 |
= |
2 |
* |
(48 |
/ |
184)
|
= |
0.52173913 |
| 4 |
30047 |
2451 |
- |
2485 |
= |
-34 |
* |
(47 |
/ |
184)
|
= |
-8.68478259 |
| 5 |
30049 |
2469 |
- |
2528 |
= |
-59 |
* |
(56 |
/ |
184)
|
= |
-17.95652173 |
| 6 |
30051 |
2506 |
- |
2552 |
= |
-46 |
* |
(33 |
/ |
184)
|
= |
-8.25 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Rockdale Visual & Performing Arts Magnet
|
-34 |
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 |
30609 |
2471 |
- |
2436 |
= |
35 |
* |
(41 |
/ |
192)
|
= |
7.47395831 |
| 4 |
30611 |
2450 |
- |
2485 |
= |
-35 |
* |
(50 |
/ |
192)
|
= |
-9.11458331 |
| 5 |
30614 |
2492 |
- |
2528 |
= |
-36 |
* |
(47 |
/ |
192)
|
= |
-8.81249998 |
| 6 |
30616 |
2527 |
- |
2552 |
= |
-25 |
* |
(54 |
/ |
192)
|
= |
-7.03125 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Rockdale Visual & Performing Arts Magnet
|
-17 |
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 |
30661 |
2451 |
- |
2436 |
= |
15 |
* |
(50 |
/ |
206)
|
= |
3.64077669 |
| 4 |
30663 |
2511 |
- |
2485 |
= |
26 |
* |
(51 |
/ |
206)
|
= |
6.43689319 |
| 5 |
30665 |
2469 |
- |
2528 |
= |
-59 |
* |
(53 |
/ |
206)
|
= |
-15.17961163 |
| 6 |
30667 |
2549 |
- |
2552 |
= |
-3 |
* |
(52 |
/ |
206)
|
= |
-0.75728155 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Rockdale Visual & Performing Arts Magnet
|
-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 |
30837 |
2454 |
- |
2436 |
= |
18 |
* |
(41 |
/ |
198)
|
= |
3.72727273 |
| 4 |
30838 |
2490 |
- |
2485 |
= |
5 |
* |
(54 |
/ |
198)
|
= |
1.36363636 |
| 5 |
30839 |
2493 |
- |
2528 |
= |
-35 |
* |
(57 |
/ |
198)
|
= |
-10.07575755 |
| 6 |
30840 |
2509 |
- |
2552 |
= |
-43 |
* |
(46 |
/ |
198)
|
= |
-9.98989898 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Rockdale Visual & Performing Arts Magnet
|
-15 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-44
|
-34
|
-17
|
-6
|
-15
|
-116.0 |
-23.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 21.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -68.2
For the lines, you have the data necessary to plot the chart.
Very last step
The percent of students getting a Free or Reduced Price Meal comes from the following sources:
