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 |
940204 |
2361 |
- |
2436 |
= |
-75 |
* |
(105 |
/ |
284)
|
= |
-27.72887318 |
| 4 |
940205 |
2388 |
- |
2485 |
= |
-97 |
* |
(97 |
/ |
284)
|
= |
-33.13028162 |
| 5 |
940208 |
2417 |
- |
2528 |
= |
-111 |
* |
(82 |
/ |
284)
|
= |
-32.04929573 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Florence Griffith Joyner Elementary
|
-93 |
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 |
29741 |
2375 |
- |
2436 |
= |
-61 |
* |
(86 |
/ |
266)
|
= |
-19.72180447 |
| 4 |
29743 |
2414 |
- |
2485 |
= |
-71 |
* |
(93 |
/ |
266)
|
= |
-24.82330826 |
| 5 |
29744 |
2422 |
- |
2528 |
= |
-106 |
* |
(87 |
/ |
266)
|
= |
-34.66917291 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Florence Griffith Joyner 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 |
30305 |
2379 |
- |
2436 |
= |
-57 |
* |
(78 |
/ |
249)
|
= |
-17.85542168 |
| 4 |
30308 |
2386 |
- |
2485 |
= |
-99 |
* |
(82 |
/ |
249)
|
= |
-32.60240963 |
| 5 |
30310 |
2434 |
- |
2528 |
= |
-94 |
* |
(89 |
/ |
249)
|
= |
-33.59839349 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Florence Griffith Joyner Elementary
|
-84 |
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 |
30356 |
2381 |
- |
2436 |
= |
-55 |
* |
(79 |
/ |
231)
|
= |
-18.80952376 |
| 4 |
30359 |
2422 |
- |
2485 |
= |
-63 |
* |
(74 |
/ |
231)
|
= |
-20.18181816 |
| 5 |
30360 |
2418 |
- |
2528 |
= |
-110 |
* |
(78 |
/ |
231)
|
= |
-37.14285707 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Florence Griffith Joyner Elementary
|
-76 |
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 |
30530 |
2374 |
- |
2436 |
= |
-62 |
* |
(84 |
/ |
216)
|
= |
-24.11111106 |
| 4 |
30531 |
2411 |
- |
2485 |
= |
-74 |
* |
(66 |
/ |
216)
|
= |
-22.61111107 |
| 5 |
30532 |
2452 |
- |
2528 |
= |
-76 |
* |
(66 |
/ |
216)
|
= |
-23.22222218 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Florence Griffith Joyner Elementary
|
-70 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-93
|
-79
|
-84
|
-76
|
-70
|
-402.0 |
-80.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -56.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -104.4
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:
