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 |
963270 |
2370 |
- |
2436 |
= |
-66 |
* |
(143 |
/ |
427)
|
= |
-22.10304446 |
| 4 |
963271 |
2411 |
- |
2485 |
= |
-74 |
* |
(146 |
/ |
427)
|
= |
-25.30210768 |
| 5 |
963274 |
2426 |
- |
2528 |
= |
-102 |
* |
(138 |
/ |
427)
|
= |
-32.96487112 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Telfair Avenue Elementary
|
-80 |
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 |
30479 |
2390 |
- |
2436 |
= |
-46 |
* |
(147 |
/ |
434)
|
= |
-15.58064514 |
| 4 |
30480 |
2400 |
- |
2485 |
= |
-85 |
* |
(144 |
/ |
434)
|
= |
-28.20276498 |
| 5 |
30483 |
2421 |
- |
2528 |
= |
-107 |
* |
(143 |
/ |
434)
|
= |
-35.25576031 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Telfair Avenue Elementary
|
-79 |
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 |
31043 |
2386 |
- |
2436 |
= |
-50 |
* |
(97 |
/ |
369)
|
= |
-13.1436314 |
| 4 |
31046 |
2426 |
- |
2485 |
= |
-59 |
* |
(146 |
/ |
369)
|
= |
-23.3441734 |
| 5 |
31048 |
2450 |
- |
2528 |
= |
-78 |
* |
(126 |
/ |
369)
|
= |
-26.63414629 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Telfair Avenue Elementary
|
-63 |
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 |
31091 |
2362 |
- |
2436 |
= |
-74 |
* |
(99 |
/ |
325)
|
= |
-22.54153842 |
| 4 |
31093 |
2418 |
- |
2485 |
= |
-67 |
* |
(89 |
/ |
325)
|
= |
-18.34769225 |
| 5 |
31095 |
2447 |
- |
2528 |
= |
-81 |
* |
(137 |
/ |
325)
|
= |
-34.14461534 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Telfair Avenue Elementary
|
-75 |
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 |
31266 |
2384 |
- |
2436 |
= |
-52 |
* |
(129 |
/ |
320)
|
= |
-20.9625 |
| 4 |
31267 |
2419 |
- |
2485 |
= |
-66 |
* |
(101 |
/ |
320)
|
= |
-20.83125 |
| 5 |
31268 |
2438 |
- |
2528 |
= |
-90 |
* |
(90 |
/ |
320)
|
= |
-25.3125 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Telfair Avenue Elementary
|
-67 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-80
|
-79
|
-63
|
-75
|
-67
|
-364.0 |
-72.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -51.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -93.8
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:
