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 |
1878680 |
2345 |
- |
2436 |
= |
-91 |
* |
(96 |
/ |
259)
|
= |
-33.72972967 |
4 |
1878681 |
2387 |
- |
2485 |
= |
-98 |
* |
(90 |
/ |
259)
|
= |
-34.05405401 |
5 |
1878684 |
2414 |
- |
2528 |
= |
-114 |
* |
(73 |
/ |
259)
|
= |
-32.13127403 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Greer Elementary
|
-100 |
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 |
57960 |
2378 |
- |
2436 |
= |
-58 |
* |
(90 |
/ |
259)
|
= |
-20.15444013 |
4 |
57962 |
2402 |
- |
2485 |
= |
-83 |
* |
(76 |
/ |
259)
|
= |
-24.35521232 |
5 |
57964 |
2430 |
- |
2528 |
= |
-98 |
* |
(93 |
/ |
259)
|
= |
-35.18918918 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Greer Elementary
|
-80 |
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 |
59655 |
2376 |
- |
2436 |
= |
-60 |
* |
(79 |
/ |
247)
|
= |
-19.19028336 |
4 |
59657 |
2421 |
- |
2485 |
= |
-64 |
* |
(88 |
/ |
247)
|
= |
-22.80161939 |
5 |
59660 |
2426 |
- |
2528 |
= |
-102 |
* |
(80 |
/ |
247)
|
= |
-33.03643718 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Greer Elementary
|
-75 |
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 |
59772 |
2363 |
- |
2436 |
= |
-73 |
* |
(68 |
/ |
238)
|
= |
-20.85714281 |
4 |
59774 |
2396 |
- |
2485 |
= |
-89 |
* |
(74 |
/ |
238)
|
= |
-27.67226884 |
5 |
59776 |
2436 |
- |
2528 |
= |
-92 |
* |
(96 |
/ |
238)
|
= |
-37.10924365 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Greer Elementary
|
-86 |
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 |
60027 |
2393 |
- |
2436 |
= |
-43 |
* |
(77 |
/ |
224)
|
= |
-14.78125 |
4 |
60028 |
2428 |
- |
2485 |
= |
-57 |
* |
(70 |
/ |
224)
|
= |
-17.8125 |
5 |
60029 |
2425 |
- |
2528 |
= |
-103 |
* |
(77 |
/ |
224)
|
= |
-35.40625 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Greer Elementary
|
-68 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-100
|
-80
|
-75
|
-86
|
-68
|
-409.0 |
-81.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -45.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -117.8
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: