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 |
6 |
984125 |
2452 |
- |
2552 |
= |
-100 |
* |
(308 |
/ |
1368)
|
= |
-22.5146198 |
7 |
984126 |
2446 |
- |
2567 |
= |
-121 |
* |
(545 |
/ |
1368)
|
= |
-48.20540925 |
8 |
984129 |
2484 |
- |
2586 |
= |
-102 |
* |
(515 |
/ |
1368)
|
= |
-38.39912278 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Griffith Middle
|
-109 |
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 |
6 |
31129 |
2469 |
- |
2552 |
= |
-83 |
* |
(385 |
/ |
1376)
|
= |
-23.22311041 |
7 |
31131 |
2467 |
- |
2567 |
= |
-100 |
* |
(485 |
/ |
1376)
|
= |
-35.247093 |
8 |
31132 |
2490 |
- |
2586 |
= |
-96 |
* |
(506 |
/ |
1376)
|
= |
-35.30232557 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Griffith Middle
|
-94 |
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 |
6 |
31690 |
2460 |
- |
2552 |
= |
-92 |
* |
(417 |
/ |
1366)
|
= |
-28.0849194 |
7 |
31692 |
2474 |
- |
2567 |
= |
-93 |
* |
(456 |
/ |
1366)
|
= |
-31.04538797 |
8 |
31694 |
2480 |
- |
2586 |
= |
-106 |
* |
(493 |
/ |
1366)
|
= |
-38.25622245 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Griffith Middle
|
-97 |
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 |
6 |
31735 |
2491 |
- |
2552 |
= |
-61 |
* |
(422 |
/ |
1380)
|
= |
-18.65362316 |
7 |
31736 |
2469 |
- |
2567 |
= |
-98 |
* |
(515 |
/ |
1380)
|
= |
-36.57246369 |
8 |
31738 |
2503 |
- |
2586 |
= |
-83 |
* |
(443 |
/ |
1380)
|
= |
-26.64420284 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Griffith Middle
|
-82 |
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 |
6 |
31912 |
2494 |
- |
2552 |
= |
-58 |
* |
(391 |
/ |
1458)
|
= |
-15.55418376 |
7 |
31913 |
2493 |
- |
2567 |
= |
-74 |
* |
(544 |
/ |
1458)
|
= |
-27.6104252 |
8 |
31914 |
2493 |
- |
2586 |
= |
-93 |
* |
(523 |
/ |
1458)
|
= |
-33.36008227 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Griffith Middle
|
-77 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-109
|
-94
|
-97
|
-82
|
-77
|
-459.0 |
-91.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -55.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -127.8
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: