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 |
325338 |
2435 |
- |
2436 |
= |
-1 |
* |
(78 |
/ |
272)
|
= |
-0.28676471 |
4 |
325339 |
2465 |
- |
2485 |
= |
-20 |
* |
(77 |
/ |
272)
|
= |
-5.6617647 |
5 |
325342 |
2445 |
- |
2528 |
= |
-83 |
* |
(60 |
/ |
272)
|
= |
-18.30882351 |
6 |
325343 |
2495 |
- |
2552 |
= |
-57 |
* |
(57 |
/ |
272)
|
= |
-11.94485291 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Gibson Elementary
|
-36 |
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 |
9704 |
2437 |
- |
2436 |
= |
1 |
* |
(68 |
/ |
272)
|
= |
0.25 |
4 |
9705 |
2470 |
- |
2485 |
= |
-15 |
* |
(88 |
/ |
272)
|
= |
-4.85294117 |
5 |
9707 |
2471 |
- |
2528 |
= |
-57 |
* |
(57 |
/ |
272)
|
= |
-11.94485291 |
6 |
9710 |
2480 |
- |
2552 |
= |
-72 |
* |
(59 |
/ |
272)
|
= |
-15.61764701 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Gibson Elementary
|
-32 |
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 |
10031 |
2450 |
- |
2436 |
= |
14 |
* |
(65 |
/ |
233)
|
= |
3.9055794 |
4 |
10033 |
2481 |
- |
2485 |
= |
-4 |
* |
(57 |
/ |
233)
|
= |
-0.97854077 |
5 |
10035 |
2467 |
- |
2528 |
= |
-61 |
* |
(60 |
/ |
233)
|
= |
-15.70815447 |
6 |
10038 |
2495 |
- |
2552 |
= |
-57 |
* |
(51 |
/ |
233)
|
= |
-12.47639484 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Gibson Elementary
|
-25 |
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 |
10049 |
2436 |
- |
2436 |
= |
0 |
* |
(58 |
/ |
231)
|
= |
0.0 |
4 |
10052 |
2476 |
- |
2485 |
= |
-9 |
* |
(61 |
/ |
231)
|
= |
-2.37662338 |
5 |
10053 |
2469 |
- |
2528 |
= |
-59 |
* |
(48 |
/ |
231)
|
= |
-12.25974021 |
6 |
10056 |
2493 |
- |
2552 |
= |
-59 |
* |
(64 |
/ |
231)
|
= |
-16.34632034 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Gibson Elementary
|
-31 |
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 |
10130 |
2448 |
- |
2436 |
= |
12 |
* |
(74 |
/ |
222)
|
= |
4.0 |
4 |
10131 |
2473 |
- |
2485 |
= |
-12 |
* |
(53 |
/ |
222)
|
= |
-2.86486486 |
5 |
10132 |
2490 |
- |
2528 |
= |
-38 |
* |
(45 |
/ |
222)
|
= |
-7.70270268 |
6 |
10133 |
2525 |
- |
2552 |
= |
-27 |
* |
(50 |
/ |
222)
|
= |
-6.08108108 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Gibson Elementary
|
-13 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-36
|
-32
|
-25
|
-31
|
-13
|
-137.0 |
-27.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -3.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -51.4
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: